Worm.Win32.AutoItGen_89ec1e4e02

by malwarelabrobot on April 14th, 2014 in Malware Descriptions.

Worm.Win32.AutoIt.FD, mzpefinder_pcap_file.YR, WormAutoItGen.YR (Lavasoft MAS)
Behaviour: Worm


The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.

Summary
Dynamic Analysis
Static Analysis
Network Activity
Map
Strings from Dumps
Removals

MD5: 89ec1e4e02775cec038e4f033f37ba03
SHA1: 2bc02d3066b0f7c555352f23e62c4efede1f4dc1
SHA256: ceda5d1cff63da2f6556f6ba8c888966db442dafdff1fb0670f5c9e227a0e3be
SSDeep: 12288:a6Wq4aaE6KwyF5L0Y2D1PqLh8np1BN6QJEeRBoL:4thEVaPqLc1BNz5PoL
Size: 445232 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: PackerUPXCompresorGratuitowwwupxsourceforgenet, UPolyXv05_v6
Company: no certificate found
Created at: 2012-01-29 23:32:28
Analyzed on: WindowsXP SP3 32-bit


Summary:

Worm. A program that is primarily replicating on networks or removable drives.

Payload

No specific payload has been found.

Process activity

The Worm creates the following process(es):

searchMessenger_upgrade.exe:1940
%original file name%.exe:776

The Worm injects its code into the following process(es):

searchMessenger.exe:1568

File activity

The process searchMessenger_upgrade.exe:1940 makes changes in the file system.
The Worm creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OPQNSD2J\searchMessenger_upgrade[2].exe (362697 bytes)
C:\sMessenger\update\searchMessenger.ico (196 bytes)
C:\sMessenger\update\searchMessenger.exe (56564 bytes)
C:\sMessenger\searchMessenger_update.ini (424 bytes)
%Documents and Settings%\%current user%\Favorites\Links\씽크존 - 지식거래.url (156 bytes)
%Documents and Settings%\%current user%\Start Menu\Programs\Startup\yesformoffice_auto_update.exe (2105 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OPQISTQM\yesformoffice_auto_update[1].exe (189961 bytes)
C:\sMessenger\update\searchMessenger_update.ini (491 bytes)
%Documents and Settings%\All Users\Start Menu\Programs\예스폼 문서메신저\예스폼 문서메신저.lnk (707 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\searchMessenger_ulist[1].dta (255 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4DQJW9YN\favicon[2].ico (337 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OPQNSD2J\searchMessenger_uninstall[1].exe (358745 bytes)
C:\sMessenger\update\searchMessenger_ulist.dta (255 bytes)
C:\sMessenger\searchMessenger_upchk.txt (10 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4DQJW9YN\favicon[1].ico (1177 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\searchMessenger[1].ico (337 bytes)
C:\sMessenger\update\searchMessenger_uninstall.exe (95004 bytes)
C:\sMessenger\예스폼 문서메신저.lnk (555 bytes)
C:\sMessenger\update\searchMessenger_tray.ico (196 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\searchMessenger_update[1].ini (491 bytes)
%Documents and Settings%\%current user%\Favorites\예스폼 - 문서서식.url (153 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4DQJW9YN\searchMessenger_tray[1].ico (337 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\searchMessenger_update[2].ini (491 bytes)
C:\sMessenger\update\searchMessenger_upgrade.exe (95844 bytes)
%Documents and Settings%\%current user%\Application Data\Thinkzon\Thinkzon.ico (196 bytes)
%Documents and Settings%\%current user%\Favorites\씽크존 - 지식거래.url (156 bytes)
%Documents and Settings%\All Users\Start Menu\Programs\예스폼 문서메신저\예스폼 문서메신저 삭제.lnk (763 bytes)
%Documents and Settings%\%current user%\Application Data\Yesform\Yesform.ico (388 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OPQISTQM\searchMessenger[1].exe (213985 bytes)
%Documents and Settings%\%current user%\Favorites\Links\예스폼 - 문서서식.url (153 bytes)
C:\sMessenger\update\yesformoffice_auto_update.exe (50052 bytes)

The Worm deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4DQJW9YN\searchMessenger_ulist[1].dta (0 bytes)
C:\sMessenger\searchMessenger_ulist.dta (0 bytes)
C:\sMessenger\update\searchMessenger_update.ini (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OPQNSD2J\searchMessenger_upgrade[1].exe (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\searchMessenger_update[1].ini (0 bytes)
C:\sMessenger\update\yesformoffice_auto_update.exe (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\searchMessenger_update[2].ini (0 bytes)

The process %original file name%.exe:776 makes changes in the file system.
The Worm creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4DQJW9YN\searchMessenger_ulist[1].dta (255 bytes)
C:\sMessenger\searchMessenger_ulist.dta (255 bytes)
C:\searchMessenger.pid (3 bytes)
C:\sMessenger\searchMessenger_upgrade.exe (95844 bytes)
C:\sMessenger\update\searchMessenger_update.ini (491 bytes)
C:\searchMessenger.ini (127 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OPQNSD2J\searchMessenger_upgrade[1].exe (362697 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\searchMessenger_update[1].ini (491 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OPQISTQM\update_check[1].htm (491 bytes)

The Worm deletes the following file(s):

The process searchMessenger.exe:1568 makes changes in the file system.
The Worm creates and/or writes to the following file(s):

C:\sMessenger\searchMessenger.pid (4 bytes)
C:\sMessenger\update\searchMessenger_update.ini (491 bytes)
C:\sMessenger\searchMessenger_update.ini (140 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\update_check[1].htm (491 bytes)
C:\sMessenger\searchMessenger.ini (127 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OPQNSD2J\searchMessenger_update[1].ini (491 bytes)

The Worm deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OPQISTQM\update_check[1].htm (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\searchMessenger_update[1].ini (0 bytes)
C:\sMessenger\update\searchMessenger_update.ini (0 bytes)
C:\sMessenger\searchMessenger_upgrade.exe (0 bytes)

Registry activity

The process searchMessenger_upgrade.exe:1940 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:

[HKCU\Software\Microsoft\Internet Explorer\SearchScopes\{1FE67845-4ED4-47B9-CB29-2E3363D9B8E6}]
"URL" = "http://www.yesform.com/z_n/forms/search.php?ie=SearchScopes&q={searchTerms}"

[HKCU\Software\Yesform\searchMessenger]
"yoNum" = "1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\searchMessenger]
"DisplayVersion" = "1.4.3.22"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKCU\Software\Microsoft\Internet Explorer\SearchScopes\{B1A7197F-ACC3-54BA-2661-43FEEB408097}]
"FaviconURL" = "http://www.thinkzon.com/favicon.ico"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 1B 00 00 00 01 00 00 00 00 00 00 00"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Start Menu" = "%Documents and Settings%\All Users\Start Menu"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"GlobalUserOffline" = "0"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Documents" = "%Documents and Settings%\All Users\Documents"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Personal" = "%Documents and Settings%\%current user%\My Documents"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"
"Startup" = "%Documents and Settings%\%current user%\Start Menu\Programs\Startup"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\searchMessenger]
"UninstallString" = "C:\sMessenger\searchMessenger_uninstall.exe c"

[HKCU\Software\Microsoft\Internet Explorer\SearchScopes\{1FE67845-4ED4-47B9-CB29-2E3363D9B8E6}]
"Codepage" = "949"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"CommonMusic" = "%Documents and Settings%\All Users\Documents\My Music"
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\searchMessenger]
"DisplayIcon" = "C:\sMessenger\searchMessenger_tray.ico"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

"Desktop" = "%Documents and Settings%\%current user%\Desktop"

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"My Pictures" = "%Documents and Settings%\%current user%\My Documents\My Pictures"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Internet Explorer\SearchScopes\{1FE67845-4ED4-47B9-CB29-2E3363D9B8E6}]
"DisplayName" = "예스폼"

[HKCU\Software\Microsoft\Internet Explorer\SearchScopes\{B1A7197F-ACC3-54BA-2661-43FEEB408097}]
"Codepage" = "949"
"DisplayName" = "씽크존"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\searchMessenger]
"DisplayName" = "예스폼 문서메신저"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Start Menu" = "%Documents and Settings%\%current user%\Start Menu"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"CommonVideo" = "%Documents and Settings%\All Users\Documents\My Videos"
"CommonPictures" = "%Documents and Settings%\All Users\Documents\My Pictures"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "09 94 F3 2D 62 48 8C E0 41 1A A6 E6 0A 67 11 E9"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Programs" = "%Documents and Settings%\All Users\Start Menu\Programs"

[HKCU\Software\Microsoft\Internet Explorer\SearchScopes\{1FE67845-4ED4-47B9-CB29-2E3363D9B8E6}]
"FaviconURL" = "http://www.yesform.com/favicon.ico"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\searchMessenger]
"Publisher" = "예스폼"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Favorites" = "%Documents and Settings%\%current user%\Favorites"
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

[HKCU\Software\Microsoft\Internet Explorer\SearchScopes\{B1A7197F-ACC3-54BA-2661-43FEEB408097}]
"URL" = "http://www.thinkzon.com/search/?ie=SearchScopes&q={searchTerms}"

The Worm modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

The Worm modifies IE settings for security zones to map all urls to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"

The Worm modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

"ProxyBypass" = "1"

To automatically run itself each time Windows is booted, the Worm adds the following link to its file to the system registry autorun key:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"searchMessenger" = "C:\sMessenger\searchMessenger.exe"

The Worm deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"

The process %original file name%.exe:776 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 16 00 00 00 01 00 00 00 00 00 00 00"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"GlobalUserOffline" = "0"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

"Desktop" = "%Documents and Settings%\%current user%\Desktop"

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "A3 7B 2C 59 D8 55 D0 F6 4C 47 81 80 73 5C A4 A4"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Programs" = "%Documents and Settings%\All Users\Start Menu\Programs"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

The Worm modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"

The Worm modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

"ProxyBypass" = "1"

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

The Worm modifies IE settings for security zones to map all urls to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"

The Worm deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"

The process searchMessenger.exe:1568 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 27 00 00 00 01 00 00 00 00 00 00 00"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"GlobalUserOffline" = "0"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

"Desktop" = "%Documents and Settings%\%current user%\Desktop"

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "E9 79 48 1B 83 55 EF BE CA 03 8C 41 53 F2 A8 11"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Programs" = "%Documents and Settings%\All Users\Start Menu\Programs"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

The Worm modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"

The Worm modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

"ProxyBypass" = "1"

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

The Worm modifies IE settings for security zones to map all urls to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"

The Worm deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"

Dropped PE files

MD5 File path
5918fc4e1b120cc35f82214209372857 c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temporary Internet Files\Content.IE5\OPQISTQM\searchMessenger[1].exe
63b8733b94d1c9f0676f5fbe9342411c c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temporary Internet Files\Content.IE5\OPQISTQM\yesformoffice_auto_update[1].exe
e2d3e41a20666865264ad2e8914c0c46 c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temporary Internet Files\Content.IE5\OPQNSD2J\searchMessenger_uninstall[1].exe
9c488ae2492abbc8b7f4949825637148 c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temporary Internet Files\Content.IE5\OPQNSD2J\searchMessenger_upgrade[2].exe
63b8733b94d1c9f0676f5fbe9342411c c:\Documents and Settings\"%CurrentUserName%"\Start Menu\Programs\Startup\yesformoffice_auto_update.exe
5918fc4e1b120cc35f82214209372857 c:\sMessenger\searchMessenger.exe
e2d3e41a20666865264ad2e8914c0c46 c:\sMessenger\searchMessenger_uninstall.exe
9c488ae2492abbc8b7f4949825637148 c:\sMessenger\searchMessenger_upgrade.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

VersionInfo

Company Name:
Product Name:
Product Version:
Legal Copyright: (?)???
Legal Trademarks:
Original Filename:
Internal Name:
File Version: 1.1307.1401
File Description: ??? ?????
Comments: ??? ?????
Language: Korean (Korea)

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
UPX0 4096 458752 0 0 d41d8cd98f00b204e9800998ecf8427e
UPX1 462848 274432 270848 5.49597 427929c2876ad452785e27c720c62cf1
.rsrc 737280 12288 8704 3.03176 48b6912f62eb496b6241317a88b71a8d

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

URL IP
hxxp://222.122.6.226/active/searchMessenger/update2/searchMessenger_update.ini
hxxp://222.122.6.226/active/searchMessenger/update2/searchMessenger.ico
hxxp://222.122.6.226/active/searchMessenger/update2/searchMessenger_tray.ico
hxxp://222.122.6.226/active/searchMessenger/update2/searchMessenger.exe
hxxp://222.122.6.226/active/searchMessenger/update2/searchMessenger_upgrade.exe
hxxp://222.122.6.226/active/searchMessenger/update2/searchMessenger_uninstall.exe
hxxp://222.122.6.226/active/searchMessenger/update2/searchMessenger_ulist.dta
hxxp://www.yesform.com/favicon.ico 222.122.6.226
hxxp://filevip.yesform.com/yesform_office/upgrade/yesformoffice_auto_update.exe
winapp.yesform.com 222.122.6.229
www.thinkzon.com 222.122.6.226


IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

ET POLICY Autoit Windows Automation tool User-Agent in HTTP Request - Possibly Hostile
ET SHELLCODE Possible TCP x86 JMP to CALL Shellcode Detected
ET TROJAN VMProtect Packed Binary Inbound via HTTP - Likely Hostile

Traffic

GET /active/searchMessenger/update2/searchMessenger.exe HTTP/1.1
User-Agent: AutoIt
Host: wupgrade.yesform.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Date: Sun, 13 Apr 2014 04:18:55 GMT
Server: Apache
Last-Modified: Wed, 24 Jul 2013 04:08:56 GMT
ETag: "6cae8-4e23a11798600"
Accept-Ranges: bytes
Content-Length: 445160
P3P: CP='ALL DSP COR MON LAW OUR LEG'
Connection: close
Content-Type: application/x-msdownload
MZ......................@.............................................
..!..L.!This program cannot be run in DOS mode....$...................
.....1b.......P.).....Q.......y.......i..........}....N.......d.......
`.......m.......g.....Rich............PE..L.....%O..........#......0..
.0......`........@[email protected]................@...
....@......................\[email protected]...............
......................................................................
......UPX0....................................UPX1.....0......."......
[email protected]...@..."...&..............@.................
......................................................................
......................................................................
......................................................................
......................................................................
......................................................................
.......3.07.UPX!.....I......?...W.......&.......U..3.......8..tI.tNh..
P..\.......R.'....$....<..u..........X<Qj.......c.`$.7;\....$H..
.]..A....F$S3.;....O...,.^$..i..^0.48.^.[o.~...=.l:)Lj........t..&....
..N..H....F.....o..6...E..MXU.W.....}.PQR.6._]...?...S.....].V;..uf...
|s)...r;...6=..J....ZU..6.~E.RPWS..&^[...f....`.t8.vL...........l..,..
}.<...u............<.~.h.....4.L....?o~..G.....q..$.,w.A..@.....
o.7..i.m0j.".{j.h...?3W.h(NHH..=o..m....u.&.^.....|.......}..?`.Z.....
.. ..B.............HSWx...X...1..SP`T.x..Q.....|.=...J{.<..\...
<<< skipped >>>


GET /active/searchMessenger/update2/searchMessenger_ulist.dta HTTP/1.1
User-Agent: AutoIt
Host: wupgrade.yesform.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Date: Sun, 13 Apr 2014 04:19:07 GMT
Server: Apache
Last-Modified: Wed, 15 Jan 2014 06:23:48 GMT
ETag: "ff-4effc5a064500"
Accept-Ranges: bytes
Content-Length: 255
P3P: CP='ALL DSP COR MON LAW OUR LEG'
Connection: close
203A20EB84A4EC9DB4EPQ28420ED86B5ED95A9EAB280EC83890A202D20476F6F..676C
6520EAB280EC83890A203A3A20EAB280EC83897A756D0A204461756D20ED..86B5ED95
A920EAB280EC83890A20EB84A4EC9DB4ED8AB820ED86B5ED95A920EA..B280EC83890A
202D2042696E6720ED86B5ED95A9EAB280EC83890A=....



GET /active/searchMessenger/update2/searchMessenger_update.ini HTTP/1.1
User-Agent: AutoIt
Host: wupgrade.yesform.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Date: Sun, 13 Apr 2014 04:18:53 GMT
Server: Apache
Last-Modified: Wed, 15 Jan 2014 06:26:06 GMT
ETag: "1eb-4effc62404835"
Accept-Ranges: bytes
Content-Length: 491
P3P: CP='ALL DSP COR MON LAW OUR LEG'
Connection: close
[readme].help=upgrade: 1)version history 2)update file..[version].hist
ory=2014-01-15 01..[install].searchMessenger.ico=Y.searchMessenger_tra
y.ico=N.searchMessenger.exe=Y.searchMessenger_upgrade.exe=Y.searchMess
enger_uninstall.exe=Y.searchMessenger_update.ini=Y..[update].searchMes
senger.ico=1.2009.12.22.searchMessenger_tray.ico=1.2009.12.22.searchMe
ssenger.exe=1.1307.2401.searchMessenger_upgrade.exe=1.2.06.searchMesse
nger_uninstall.exe=913.13.111.5.searchMessenger_ulist.dta=15.1401.1005
...



GET /active/searchMessenger/update2/searchMessenger_tray.ico HTTP/1.1
User-Agent: AutoIt
Host: wupgrade.yesform.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Date: Sun, 13 Apr 2014 04:18:54 GMT
Server: Apache
Last-Modified: Thu, 05 Jun 2008 04:56:38 GMT
ETag: "10be-44ee42b9c0d80"
Accept-Ranges: bytes
Content-Length: 4286
P3P: CP='ALL DSP COR MON LAW OUR LEG'
Connection: close
Content-Type: image/x-icon
......  .... .........(... ...@..... .................................
.....................................................}.Y..............
......................................................................
...........................^.......sZO..vm..i_..wn.....$.......,...,..
.,...,...,............................................................
...........5.... ..............3......................................
..............................................................!...!...
......................................................................
..................................................!..t!... ...........
...................E..................................................
.................................. ..'................RL..........'...
......................................................................
.................."[email protected]..........
.......R..............................................................
......"..e ...........................................&...............
............................................................#... .....
..........|{.............._]..................^\.................`....
................................................ ..."...........<4.
.........................dc.................. $.................&.....
...................................!..T .......*...OH..!..............
.................)!..................fc.................o.............
...................!...#... .......................B:.............
<<< skipped >>>


GET /active/searchMessenger/update2/searchMessenger_upgrade.exe HTTP/1.1
User-Agent: AutoIt
Host: wupgrade.yesform.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Date: Sun, 13 Apr 2014 04:18:58 GMT
Server: Apache
Last-Modified: Wed, 18 Dec 2013 08:21:09 GMT
ETag: "b5ff0-4edcaba24e740"
Accept-Ranges: bytes
Content-Length: 745456
P3P: CP='ALL DSP COR MON LAW OUR LEG'
Connection: close
Content-Type: application/x-msdownload
MZ......................@.............................................
..!..L.!This program cannot be run in DOS mode....$...................
.....1b.......P.).....Q.......y.......i..........}....N.......d.......
`.......m.......g.....Rich............PE..L.....%O..........#.........
.........e....... ....@...........................................@...
[email protected]........?...........E..h...............
............................................. ..D.....................
.......text............................... ..`.rdata....... ..........
............@[email protected][email protected]....?....
[email protected]..............@..@............................................
......................................................................
......................................................................
......................................................................
......................................................................
............................................U..3.......8..tI.tNh....P.
.\...R..tI..............uI......X...Qj...X.........\.....`..........$H
...].............F$S3.;....O...F,.^$;....O...^,.^0.^4.^8.^.[.....~....
)L..j..&........t......N..H....F...N.3..H....F............U...E..M..U.
W.}.PQR....._]......U.....S.].V;..uI.uf......s)...r$;=..J........U..E.
RPWS...&H.^[..].........t8...vL.......................}.........u..Q..
...uI...t....E.h..J........3.^[..]..........G......q....$.,[email protected]...&H
....J..7...j....&H.3.^[..]...j.h....j.S...&H.h(NH....&H..=..J.....
<<< skipped >>>


GET /favicon.ico HTTP/1.1
User-Agent: AutoIt
Host: VVV.thinkzon.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Date: Sun, 13 Apr 2014 04:19:06 GMT
Server: Apache
Last-Modified: Tue, 26 Nov 2013 06:53:09 GMT
ETag: "10be-4ec0eeefb2aa4"
Accept-Ranges: bytes
Content-Length: 4286
Connection: close
Content-Type: image/x-icon
......  .... .........(... ...@..... .................................
.....................................qJ..qJ/.kA........@..............
.................................................V....................
.....................qJ..qJ..qJ..nG..|X:.......H...^...j...o...y...z..
.z...z...z...z...z...r...j...a...S.../................................
.........qJ..qJ..qJ..qK..nF..uO}.zV...................................
...............................................................qJB.qJ.
.qJ..qJ..qJ..qJ..pH..oG..j@I..........................................
...............................................qJ..qJ..qJ..qJ..qJ..kB.
.kB..pI..qJ..qJ..qI..lB...............................................
...................................qJ..qJ..qJ..qI..mE...o...m..lD..mE.
.qJ..qJ..qJ..qJZ......................................................
...................qJ9.qJ..qJ..qJ..jA..................zU..jA..pI..qJ.
.qJ..qJ..qJ(..........................................................
...qJ..qJ..qJ..qJ..lD...\..........................lD..lD..qJ..qJ..qJ.
.qJn.qJ......................................................qJu.qJ..q
J..pH..qJ..................................}Z..jA..pH..qJ..qJ..qJ..qJ6
.............................................qJ-.qJ..qJ..qJ..i@..vO...
...........f=..._......................nF..lC..qJ..qJ..qJ..qJ..qJ.....
.............................qJ..qJ..qJ..qI..pH.......d..vQ......._..n
F..mE..mE.......................d..h?..oG..qJ..qJ..qJ..qJG............
.................qJs.qJ..qJ..kC..................jA..i@..qJ..qJ..p
<<< skipped >>>


GET /active/searchMessenger/update2/searchMessenger_update.ini HTTP/1.1
User-Agent: AutoIt
Host: wupgrade.yesform.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Date: Sun, 13 Apr 2014 04:18:53 GMT
Server: Apache
Last-Modified: Wed, 15 Jan 2014 06:26:06 GMT
ETag: "1eb-4effc62404835"
Accept-Ranges: bytes
Content-Length: 491
P3P: CP='ALL DSP COR MON LAW OUR LEG'
Connection: close
[readme].help=upgrade: 1)version history 2)update file..[version].hist
ory=2014-01-15 01..[install].searchMessenger.ico=Y.searchMessenger_tra
y.ico=N.searchMessenger.exe=Y.searchMessenger_upgrade.exe=Y.searchMess
enger_uninstall.exe=Y.searchMessenger_update.ini=Y..[update].searchMes
senger.ico=1.2009.12.22.searchMessenger_tray.ico=1.2009.12.22.searchMe
ssenger.exe=1.1307.2401.searchMessenger_upgrade.exe=1.2.06.searchMesse
nger_uninstall.exe=913.13.111.5.searchMessenger_ulist.dta=15.1401.1005
...



GET /favicon.ico HTTP/1.1
User-Agent: AutoIt
Host: VVV.yesform.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Date: Sun, 13 Apr 2014 04:19:09 GMT
Server: Apache
Last-Modified: Mon, 06 Jan 2014 02:55:57 GMT
ETag: "25be-4ef44661f8940"
Accept-Ranges: bytes
Content-Length: 9662
P3P: CP='ALL DSP COR MON LAW OUR LEG'
Connection: close
Content-Type: image/x-icon
......00.... ..%......(...0...`..... ......%..........................
......................................................................
.................P....................................................
...................................@..................................
..............................................,...,..0...............@
......................................................................
.............p...@....................................................
........................,..p,...,...,...,..@..........................
......................................................................
......................................................................
..,..@,...,...,...,...,...,...,.......................................
......................................................................
..................................................,...,...,...,...,...
,...,...,...,...,..`..................................................
......................................................................
................................,...,...,...,...,...,...,...,...,...,.
..,...,.. ............................................................
......................................................................
..........,..@,...,...,...,...,...,...,...,...,...,...,...,...,.......
......................................................................
..............................................................,...,...
,...,...,...,...,...,...,...,...,...,...,...,...,...,..@..........
<<< skipped >>>


GET /active/searchMessenger/update2/searchMessenger.ico HTTP/1.1
User-Agent: AutoIt
Host: wupgrade.yesform.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Date: Sun, 13 Apr 2014 04:18:49 GMT
Server: Apache
Last-Modified: Mon, 16 Nov 2009 07:07:08 GMT
ETag: "10be-47877a85dbf00"
Accept-Ranges: bytes
Content-Length: 4286
P3P: CP='ALL DSP COR MON LAW OUR LEG'
Connection: close
Content-Type: image/x-icon
......  .... .........(... ...@..... ...............................4.
..4...4...4...4...4...4...4...4...4...4...4...4...4...4...4...4...4...
4...4...4...4...4...4...4...4...4...4...4...4.......4...8...>...>
;...>...>...>...>...>...>...>...>...>...>
;...>...>...>...>...>...>...>...>...>...>
;...>...>...>...>...>...>...8...4...4...>........
......................................................................
.....................................>...4...4...>..."..."..."..
."..."..."..."..."..."..."..."..."..."..."..."..."..."..."..."..."..."
..........................."...>...4...4...>...%...%...%...%...%
...%...%...%...%...%...%...%...%...%...%...%...%...%...%...%..........
...zzz.JJJ...........%...>...4...4...>...(...(.\\\..............
...............................................................zzz.JJJ
.k.............(...>...4...4...>...-...-.\\\..................|.
..|.......|...|...|..(.}.(.}.(.}...E...E.............zzz.JJJ.k........
.........-...>...4...4...>...1...1.\\\..........................
...........................................zzz.>>>.H.........
........1...1...>...4...4...>...5...5.\\\.......................
..........................%%%.............bbb.>>>.%...>>
;>...........5...5...5...>...4...4...>...9...9.\\\...........
..........................%Kp.W...4...6...n...|pR.....&&&.%...>>
>...............9...9...9...>...4...4...>...<...<.\
<<< skipped >>>


GET /yesform_office/upgrade/yesformoffice_auto_update.exe HTTP/1.1
User-Agent: AutoIt
Host: winapp.yesform.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Date: Sun, 13 Apr 2014 04:19:11 GMT
Server: Apache
Last-Modified: Thu, 19 Dec 2013 05:04:25 GMT
ETag: "1a41136-5f810-4eddc18698840"
Accept-Ranges: bytes
Content-Length: 391184
Content-Type: application/x-msdownload
MZ......................@.............................................
..!..L.!This program cannot be run in DOS mode....$...................
.....1b.......P.).....Q.......y.......i..........}....N.......d.......
`.......m.......g.....Rich............PE..L.....%O..........#......0..
.`...@..`[email protected].........@...
[email protected]...............
......................................................................
[email protected]..."......
[email protected]....`.......T...&..............@.................
......................................................................
......................................................................
......................................................................
......................................................................
......................................................................
.......3.07.UPX!.... G(. ...?A..^....)..&..Z....U..3.......8..tI.tNh..
P..\.......R.'....$....<..u..........X<Qj.......c.`$.7;\....$H..
.]..A....F$S3.;....O...,.^$..i..^0.48.^.[o.~...=.l:)Lj........t..&....
..N..H....F.....o..6...E..MXU.W.....}.PQR.6._]...?...S.....].V;..uf...
|s)...r;...6=..J....ZU..6.~E.RPWS..&^[...f....`.t8.vL...........l..,..
}.<...u............<.~.h.....4.L....?o~..G.....q..$.,w.A..@.....
o.7..i.m0j.".{j.h...?3W.h(NHH..=o..m....u.&.^.....|.......}..?`.Z.....
.. ..B.............HSWx...X...1..SP`T.x..Q.....|.=...J{.<..\...
<<< skipped >>>


GET /active/searchMessenger/update2/searchMessenger_uninstall.exe HTTP/1.1
User-Agent: AutoIt
Host: wupgrade.yesform.com
Cache-Control: no-cache


HTTP/1.1 200 OK
Date: Sun, 13 Apr 2014 04:19:02 GMT
Server: Apache
Last-Modified: Wed, 04 Dec 2013 08:53:32 GMT
ETag: "b2ab0-4ecb18c2d7b00"
Accept-Ranges: bytes
Content-Length: 731824
P3P: CP='ALL DSP COR MON LAW OUR LEG'
Connection: close
Content-Type: application/x-msdownload
MZ......................@.............................................
..!..L.!This program cannot be run in DOS mode....$...................
.....1b.......P.).....Q.......y.......i..........}....N.......d.......
`.......m.......g.....Rich............PE..L.....%O..........#.........
.........e....... ....@...........................................@...
[email protected]........?..........P...`...............
............................................. ..D.....................
.......text............................... ..`.rdata....... ..........
............@[email protected][email protected]....?....
[email protected]..............@..@............................................
......................................................................
......................................................................
......................................................................
......................................................................
............................................U..3.......8..tI.tNh....P.
.\...R..tI..............uI......X...Qj...X.........\.....`..........$H
...].............F$S3.;....O...F,.^$;....O...^,.^0.^4.^8.^.[.....~....
)L..j..&........t......N..H....F...N.3..H....F............U...E..M..U.
W.}.PQR....._]......U.....S.].V;..uI.uf......s)...r$;=..J........U..E.
RPWS...&H.^[..].........t8...vL.......................}.........u..Q..
...uI...t....E.h..J........3.^[..]..........G......q....$.,[email protected]...&H
....J..7...j....&H.3.^[..]...j.h....j.S...&H.h(NH....&H..=..J.....
<<< skipped >>>
searchMessenger.exe_1568:

`.rsrc
s%j.Zf
8crtsu
:crts
crts
GetProcessWindowStation
operator
This is a compiled AutoIt script. AV researchers please email [email protected] for support.
uxtheme.dll
kernel32.dll
operand of unlimited repeat could match the empty string
POSIX named classes are supported only within a class
erroffset passed as NULL
POSIX collating elements are not supported
this version of PCRE is not compiled with PCRE_UTF8 support
PCRE does not support \L, \l, \N{name}, \U, or \u
support for \P, \p, and \X has not been compiled
this version of PCRE is not compiled with PCRE_UCP support
ICMP.DLL
advapi32.dll
RegDeleteKeyExW
Error text not found (please report)
zcÁ
0.KP{
GetProcessHeap
CreatePipe
GetWindowsDirectoryW
GetCPInfo
RegDeleteKeyW
RegEnumKeyExW
RegCreateKeyExW
RegOpenKeyExW
RegCloseKey
SetViewportOrgEx
ShellExecuteExW
SHFileOperationW
ShellExecuteW
RegisterHotKey
GetKeyboardLayoutNameW
ExitWindowsEx
EnumThreadWindows
GetAsyncKeyState
SetKeyboardState
GetKeyboardState
GetKeyState
VkKeyScanW
EnumWindows
EnumChildWindows
MapVirtualKeyW
CloseWindowStation
SetProcessWindowStation
OpenWindowStationW
UnregisterHotKey
keybd_event
InternetCrackUrlW
HttpQueryInfoW
HttpOpenRequestW
HttpSendRequestW
FtpOpenFileW
FtpGetFileSize
InternetOpenUrlW
.text
`.rdata
@.data
.rsrc
23$--%"!'
's.ak[
Sub%U
KERNEL32.DLL
ADVAPI32.dll
COMCTL32.dll
COMDLG32.dll
GDI32.dll
MPR.dll
ole32.dll
OLEAUT32.dll
PSAPI.DLL
SHELL32.dll
USER32.dll
USERENV.dll
VERSION.dll
WININET.dll
WINMM.dll
WSOCK32.dll
mscoree.dll
nKERNEL32.DLL
- Attempt to initialize the CRT more than once.
- CRT not initialized
- floating point support not loaded
WUSER32.DLL
>>>AUTOIT NO CMDEXECUTE<<<
CMDLINERAW
CMDLINE
/AutoIt3ExecuteLine
/AutoIt3ExecuteScript
%s (%d) : ==> %s.:
Line %d:
Line %d (File "%s"):
%s (%d) : ==> %s:
AutoIt script files (*.au3, *.a3x)
*.au3;*.a3x
All files (*.*)
#NoAutoIt3Execute
APPSKEY
04090000
%u.%u.%u.%u
0.0.0.0
Mddddd
%s (%d) : ==> %s:
UDPSTARTUP
UDPSHUTDOWN
UDPSEND
UDPRECV
UDPOPEN
UDPCLOSESOCKET
UDPBIND
TRAYGETMSG
TCPSTARTUP
TCPSHUTDOWN
TCPSEND
TCPRECV
TCPNAMETOIP
TCPLISTEN
TCPCONNECT
TCPCLOSESOCKET
TCPACCEPT
SHELLEXECUTEWAIT
SHELLEXECUTE
REGENUMKEY
MSGBOX
ISKEYWORD
HTTPSETUSERAGENT
HTTPSETPROXY
HOTKEYSET
GUIREGISTERMSG
GUIGETMSG
GUICTRLSENDMSG
GUICTRLRECVMSG
FTPSETPROXY
\??\%s
GUI_RUNDEFMSG
SendKeyDelay
SendKeyDownDelay
TCPTimeout
AUTOITCALLVARIABLE%d
255.255.255.255
Keyword
AutoIt.Error
Null Object assignment in FOR..IN loop
Incorrect Object type in FOR..IN loop
HOTKEYPRESSED
AUTOITEXE
WINDOWSDIR
3, 3, 8, 1
HKEY_LOCAL_MACHINE
HKEY_CLASSES_ROOT
HKEY_CURRENT_CONFIG
HKEY_CURRENT_USER
HKEY_USERS
%d/d/d
C:\sMessenger\searchMessenger.exe
:C:\sMessenger\searchMessenger.exe
AutoIt supports the __stdcall (WINAPI) and __cdecl calling conventions. The __stdcall (WINAPI) convention is used by default but __cdecl can be used instead. See the DllCall() documentation for details on changing the calling convention.
Missing operator in expression."Unbalanced brackets in expression.
Error parsing function call.0Incorrect number of parameters in function call.'"ReDim" used without an array variable.>Illegal text at the end of statement (one statement per line).1"If" statement has no matching "EndIf" statement.1"Else" statement with no matching "If" statement.2"EndIf" statement with no matching "If" statement.7Too many "Else" statements for matching "If" statement.3"While" statement has no matching "Wend" statement.4"Wend" statement with no matching "While" statement.%Variable used without being declared.XArray variable has incorrect number of subscripts or subscript dimension range exceeded.)Array variable subscript badly formatted.'Subscript used with non-Array variable.&Too many subscripts used for an array.0Missing subscript dimensions in "Dim" statement.NNo variable given for "Dim", "Local", "Global", "Struct" or "Const" statement.0Expected a "=" operator in assignment statement.*Invalid keyword at the start of this line.
Invalid element in a DllStruct.*Unknown option or bad parameter specified.&Unable to load the internet libraries./"Struct" statement has no matching "EndStruct".HUnable to open file, the maximum number of open files has been exceeded.K"ContinueLoop" statement with no matching "While", "Do" or "For" statement.
Invalid file filter given.*Expected a variable in user function call.1"Do" statement has no matching "Until" statement.2"Until" statement with no matching "Do" statement.#"For" statement is badly formatted.2"Next" statement with no matching "For" statement.N"ExitLoop/ContinueLoop" statements only valid from inside a For/Do/While loop.1"For" statement has no matching "Next" statement.@"Case" statement with no matching "Select"or "Switch" statement.:"EndSelect" statement with no matching "Select" statement.ORecursion level has been exceeded - AutoIt will quit to prevent stack overflow.&Cannot make existing variables static.4Cannot make static variables into regular variables.
3This keyword cannot be used after a "Then" keyword.>"Select" statement is missing "EndSelect" or "Case" statement. "If" statements must have a "Then" keyword. Badly formated Struct statement."Cannot assign values to constants..Cannot make existing variables into constants.9Only Object-type variables allowed in a "With" statement.v"long_ptr", "int_ptr" and "short_ptr" DllCall() types have been deprecated. Use "long*", "int*" and "short*" instead.-Object referenced outside a "With" statement.)Nested "With" statements are not allowed."Variable must be of type "Object".1The requested action with this object has failed.8Variable appears more than once in function declaration.2ReDim array can not be initialized in this manner.1An array variable can not be used in this manner.
Can not redeclare a constant.5Can not redeclare a parameter inside a user function.HCan pass constants by reference only to parameters with "Const" keyword.*Can not initialize a variable with itself.$Incorrect way to use this parameter.:"EndSwitch" statement with no matching "Switch" statement.>"Switch" statement is missing "EndSwitch" or "Case" statement.H"ContinueCase" statement with no matching "Select"or "Switch" statement.
String missing closing quote.!Badly formated variable or macro.*Missing separator character after keyword.
1.1307.2401

searchMessenger.exe_1568_rwx_00401000_000B1000:

s%j.Zf
8crtsu
:crts
crts
GetProcessWindowStation
operator
This is a compiled AutoIt script. AV researchers please email [email protected] for support.
uxtheme.dll
kernel32.dll
operand of unlimited repeat could match the empty string
POSIX named classes are supported only within a class
erroffset passed as NULL
POSIX collating elements are not supported
this version of PCRE is not compiled with PCRE_UTF8 support
PCRE does not support \L, \l, \N{name}, \U, or \u
support for \P, \p, and \X has not been compiled
this version of PCRE is not compiled with PCRE_UCP support
ICMP.DLL
advapi32.dll
RegDeleteKeyExW
Error text not found (please report)
zcÁ
0.KP{
GetProcessHeap
CreatePipe
GetWindowsDirectoryW
GetCPInfo
RegDeleteKeyW
RegEnumKeyExW
RegCreateKeyExW
RegOpenKeyExW
RegCloseKey
SetViewportOrgEx
ShellExecuteExW
SHFileOperationW
ShellExecuteW
RegisterHotKey
GetKeyboardLayoutNameW
ExitWindowsEx
EnumThreadWindows
GetAsyncKeyState
SetKeyboardState
GetKeyboardState
GetKeyState
VkKeyScanW
EnumWindows
EnumChildWindows
MapVirtualKeyW
CloseWindowStation
SetProcessWindowStation
OpenWindowStationW
UnregisterHotKey
keybd_event
InternetCrackUrlW
HttpQueryInfoW
HttpOpenRequestW
HttpSendRequestW
FtpOpenFileW
FtpGetFileSize
InternetOpenUrlW
.text
`.rdata
@.data
.rsrc
23$--%"!'
's.ak[
mscoree.dll
nKERNEL32.DLL
- Attempt to initialize the CRT more than once.
- CRT not initialized
- floating point support not loaded
WUSER32.DLL
>>>AUTOIT NO CMDEXECUTE<<<
CMDLINERAW
CMDLINE
/AutoIt3ExecuteLine
/AutoIt3ExecuteScript
%s (%d) : ==> %s.:
Line %d:
Line %d (File "%s"):
%s (%d) : ==> %s:
AutoIt script files (*.au3, *.a3x)
*.au3;*.a3x
All files (*.*)
#NoAutoIt3Execute
APPSKEY
04090000
%u.%u.%u.%u
0.0.0.0
Mddddd
%s (%d) : ==> %s:
UDPSTARTUP
UDPSHUTDOWN
UDPSEND
UDPRECV
UDPOPEN
UDPCLOSESOCKET
UDPBIND
TRAYGETMSG
TCPSTARTUP
TCPSHUTDOWN
TCPSEND
TCPRECV
TCPNAMETOIP
TCPLISTEN
TCPCONNECT
TCPCLOSESOCKET
TCPACCEPT
SHELLEXECUTEWAIT
SHELLEXECUTE
REGENUMKEY
MSGBOX
ISKEYWORD
HTTPSETUSERAGENT
HTTPSETPROXY
HOTKEYSET
GUIREGISTERMSG
GUIGETMSG
GUICTRLSENDMSG
GUICTRLRECVMSG
FTPSETPROXY
\??\%s
GUI_RUNDEFMSG
SendKeyDelay
SendKeyDownDelay
TCPTimeout
AUTOITCALLVARIABLE%d
255.255.255.255
Keyword
AutoIt.Error
Null Object assignment in FOR..IN loop
Incorrect Object type in FOR..IN loop
HOTKEYPRESSED
AUTOITEXE
WINDOWSDIR
3, 3, 8, 1
HKEY_LOCAL_MACHINE
HKEY_CLASSES_ROOT
HKEY_CURRENT_CONFIG
HKEY_CURRENT_USER
HKEY_USERS
%d/d/d
C:\sMessenger\searchMessenger.exe
:C:\sMessenger\searchMessenger.exe
AutoIt supports the __stdcall (WINAPI) and __cdecl calling conventions. The __stdcall (WINAPI) convention is used by default but __cdecl can be used instead. See the DllCall() documentation for details on changing the calling convention.
Missing operator in expression."Unbalanced brackets in expression.
Error parsing function call.0Incorrect number of parameters in function call.'"ReDim" used without an array variable.>Illegal text at the end of statement (one statement per line).1"If" statement has no matching "EndIf" statement.1"Else" statement with no matching "If" statement.2"EndIf" statement with no matching "If" statement.7Too many "Else" statements for matching "If" statement.3"While" statement has no matching "Wend" statement.4"Wend" statement with no matching "While" statement.%Variable used without being declared.XArray variable has incorrect number of subscripts or subscript dimension range exceeded.)Array variable subscript badly formatted.'Subscript used with non-Array variable.&Too many subscripts used for an array.0Missing subscript dimensions in "Dim" statement.NNo variable given for "Dim", "Local", "Global", "Struct" or "Const" statement.0Expected a "=" operator in assignment statement.*Invalid keyword at the start of this line.
Invalid element in a DllStruct.*Unknown option or bad parameter specified.&Unable to load the internet libraries./"Struct" statement has no matching "EndStruct".HUnable to open file, the maximum number of open files has been exceeded.K"ContinueLoop" statement with no matching "While", "Do" or "For" statement.
Invalid file filter given.*Expected a variable in user function call.1"Do" statement has no matching "Until" statement.2"Until" statement with no matching "Do" statement.#"For" statement is badly formatted.2"Next" statement with no matching "For" statement.N"ExitLoop/ContinueLoop" statements only valid from inside a For/Do/While loop.1"For" statement has no matching "Next" statement.@"Case" statement with no matching "Select"or "Switch" statement.:"EndSelect" statement with no matching "Select" statement.ORecursion level has been exceeded - AutoIt will quit to prevent stack overflow.&Cannot make existing variables static.4Cannot make static variables into regular variables.
3This keyword cannot be used after a "Then" keyword.>"Select" statement is missing "EndSelect" or "Case" statement. "If" statements must have a "Then" keyword. Badly formated Struct statement."Cannot assign values to constants..Cannot make existing variables into constants.9Only Object-type variables allowed in a "With" statement.v"long_ptr", "int_ptr" and "short_ptr" DllCall() types have been deprecated. Use "long*", "int*" and "short*" instead.-Object referenced outside a "With" statement.)Nested "With" statements are not allowed."Variable must be of type "Object".1The requested action with this object has failed.8Variable appears more than once in function declaration.2ReDim array can not be initialized in this manner.1An array variable can not be used in this manner.
Can not redeclare a constant.5Can not redeclare a parameter inside a user function.HCan pass constants by reference only to parameters with "Const" keyword.*Can not initialize a variable with itself.$Incorrect way to use this parameter.:"EndSwitch" statement with no matching "Switch" statement.>"Switch" statement is missing "EndSwitch" or "Case" statement.H"ContinueCase" statement with no matching "Select"or "Switch" statement.
String missing closing quote.!Badly formated variable or macro.*Missing separator character after keyword.


Remove it with Ad-Aware

  1. Click (here) to download and install Ad-Aware Free Antivirus.
  2. Update the definition files.
  3. Run a full scan of your computer.


Manual removal*

  1. Terminate malicious process(es) (How to End a Process With the Task Manager):

    searchMessenger_upgrade.exe:1940
    %original file name%.exe:776

  2. Delete the original Worm file.
  3. Delete or disinfect the following files created/modified by the Worm:

    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OPQNSD2J\searchMessenger_upgrade[2].exe (362697 bytes)
    C:\sMessenger\update\searchMessenger.ico (196 bytes)
    C:\sMessenger\update\searchMessenger.exe (56564 bytes)
    C:\sMessenger\searchMessenger_update.ini (424 bytes)
    %Documents and Settings%\%current user%\Favorites\Links\씽크존 - 지식거래.url (156 bytes)
    %Documents and Settings%\%current user%\Start Menu\Programs\Startup\yesformoffice_auto_update.exe (2105 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OPQISTQM\yesformoffice_auto_update[1].exe (189961 bytes)
    C:\sMessenger\update\searchMessenger_update.ini (491 bytes)
    %Documents and Settings%\All Users\Start Menu\Programs\예스폼 문서메신저\예스폼 문서메신저.lnk (707 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\searchMessenger_ulist[1].dta (255 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4DQJW9YN\favicon[2].ico (337 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OPQNSD2J\searchMessenger_uninstall[1].exe (358745 bytes)
    C:\sMessenger\update\searchMessenger_ulist.dta (255 bytes)
    C:\sMessenger\searchMessenger_upchk.txt (10 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4DQJW9YN\favicon[1].ico (1177 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\searchMessenger[1].ico (337 bytes)
    C:\sMessenger\update\searchMessenger_uninstall.exe (95004 bytes)
    C:\sMessenger\예스폼 문서메신저.lnk (555 bytes)
    C:\sMessenger\update\searchMessenger_tray.ico (196 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\searchMessenger_update[1].ini (491 bytes)
    %Documents and Settings%\%current user%\Favorites\예스폼 - 문서서식.url (153 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4DQJW9YN\searchMessenger_tray[1].ico (337 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\searchMessenger_update[2].ini (491 bytes)
    C:\sMessenger\update\searchMessenger_upgrade.exe (95844 bytes)
    %Documents and Settings%\%current user%\Application Data\Thinkzon\Thinkzon.ico (196 bytes)
    %Documents and Settings%\%current user%\Favorites\씽크존 - 지식거래.url (156 bytes)
    %Documents and Settings%\All Users\Start Menu\Programs\예스폼 문서메신저\예스폼 문서메신저 삭제.lnk (763 bytes)
    %Documents and Settings%\%current user%\Application Data\Yesform\Yesform.ico (388 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OPQISTQM\searchMessenger[1].exe (213985 bytes)
    %Documents and Settings%\%current user%\Favorites\Links\예스폼 - 문서서식.url (153 bytes)
    C:\sMessenger\update\yesformoffice_auto_update.exe (50052 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4DQJW9YN\searchMessenger_ulist[1].dta (255 bytes)
    C:\sMessenger\searchMessenger_ulist.dta (255 bytes)
    C:\searchMessenger.pid (3 bytes)
    C:\sMessenger\searchMessenger_upgrade.exe (95844 bytes)
    C:\searchMessenger.ini (127 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OPQNSD2J\searchMessenger_upgrade[1].exe (362697 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OPQISTQM\update_check[1].htm (491 bytes)
    C:\sMessenger\searchMessenger.pid (4 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\update_check[1].htm (491 bytes)
    C:\sMessenger\searchMessenger.ini (127 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OPQNSD2J\searchMessenger_update[1].ini (491 bytes)

  4. Delete the following value(s) in the autorun key (How to Work with System Registry):

    [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
    "searchMessenger" = "C:\sMessenger\searchMessenger.exe"

  5. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
  6. Reboot the computer.

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.

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