Trojan-Downloader.Win32.FlyStudio.ho_310765cba6

by malwarelabrobot on March 11th, 2014 in Malware Descriptions.

Trojan-Downloader.Win32.FlyStudio.ho (Kaspersky), Trojan.Win32.Generic!SB.0 (VIPRE), Virus.Win32.Pcclient!IK (Emsisoft), GenericAutorunWorm.YR (Lavasoft MAS)
Behaviour: Trojan-Downloader, Trojan, Worm, Virus, WormAutorun


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

Summary
Technical Details
Removal Recommendations

MD5: 310765cba65d932c844c39bcb6f1eaee
SHA1: 19264b9427b88f87bfa71af8c43759f3b0ee6a24
SHA256: ab515fddb5d573792334dc575f63177788ca85956f4a2913b76dee4e08d4cbfd
SSDeep: 24576:He59RrEts4E59IrYnjtscr/dMYry/Zn1lTCvoKFmrj9G7yZlra2ST:He5A 9I6tssMYo/OvoNGqxavT
Size: 1227891 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 1981-03-12 16:25:35
Analyzed on: WindowsXP SP3 32-bit


Summary:

Trojan-Downloader. Trojan program, which downloads files from the Internet without user's notice and executes them.

Payload

Behaviour Description
WormAutorun A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Trojan-Downloader's file once a user opens a drive's folder in Windows Explorer.


Process activity

The Trojan-Downloader creates the following process(es):

XP-A3C039FA.EXE:1788
%original file name%.exe:1552

The Trojan-Downloader injects its code into the following process(es):

XP-542ADE6B.EXE:1756

File activity

The process XP-542ADE6B.EXE:1756 makes changes in the file system.
The Trojan-Downloader creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Cookies\Current_User@statcounter[1].txt (230 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@statcounter[2].txt (420 bytes)
%System%\com.run (1425 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\E_4\internet.fne (184 bytes)
%Documents and Settings%\%current user%\Local Settings\History\History.IE5\MSHist012013021120130218\index.dat (266 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\E_4\spec.fne (73 bytes)
%System%\ul.dll (2 bytes)
%System%\og.edt (512 bytes)
%System%\og.dll (692 bytes)
%System%\eAPI.fne (1425 bytes)
%System%\spec.fne (601 bytes)
%System%\XP-A3C039FA.EXE (7386 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\E_4\eAPI.fne (323 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\S96BCDQ7\desktop.ini (67 bytes)
%System%\RegEx.fne (673 bytes)
%System%\internet.fne (673 bytes)
%Documents and Settings%\%current user%\Local Settings\History\History.IE5\index.dat (266 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\E_4\RegEx.fne (167 bytes)
%Documents and Settings%\%current user%\Start Menu\Programs\Startup\¡¡¡¡¡¡.lnk (1250 bytes)
%Documents and Settings%\%current user%\Cookies\index.dat (776 bytes)
%System%\krnln.fnr (7433 bytes)
%System%\shell.fne (40 bytes)
%Documents and Settings%\%current user%\Local Settings\History\History.IE5\MSHist012013030120130302\index.dat (202 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\S96BCDQ7\counter[1].gif (8 bytes)
%System%\dp1.fne (601 bytes)

The Trojan-Downloader deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\History\History.IE5\MSHist012013021120130218\index.dat (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@taobao[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@eyereturn[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][1].txt (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (0 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@statcounter[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@msn[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][1].txt (0 bytes)
%Documents and Settings%\%current user%\Local Settings\History\History.IE5\MSHist012013021120130218 (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@twitter[1].txt (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\S96BCDQ7\counter[1].gif (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@microsoft[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][1].txt (0 bytes)
%Documents and Settings%\%current user%\Local Settings\History\History.IE5\MSHist012013030120130302 (0 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@java[2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@support[2].txt (0 bytes)
%Documents and Settings%\%current user%\Local Settings\History\History.IE5 (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@alimama[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@opera[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@google[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@chrome[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@atdmt[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@mmstat[2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@ok365[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@adnxs[2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@dasf[2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@openx[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@doubleclick[2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@bing[2].txt (0 bytes)
%System%\XP-A3C039FA.EXE (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\desktop.ini (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@baidu[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@cfusion[2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@faith-hill-shows-off-new-braces-at-grammys[2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@adobe[2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@yandex[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@tns-counter[1].txt (0 bytes)
%Documents and Settings%\%current user%\Local Settings\History\History.IE5\MSHist012013030120130302\index.dat (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@scorecardresearch[2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][1].txt (0 bytes)

The process XP-A3C039FA.EXE:1788 makes changes in the file system.
The Trojan-Downloader creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\E_4\spec.fne (73 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\Temporary Internet Files\Content.IE5\FM1R1YEI\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\Temporary Internet Files\Content.IE5\HHNZBBNU\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\History\History.IE5\desktop.ini (159 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\Temporary Internet Files\Content.IE5\ZF3ACG4L\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\Temporary Internet Files\Content.IE5\GUO12J11\desktop.ini (67 bytes)

The process %original file name%.exe:1552 makes changes in the file system.
The Trojan-Downloader creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\E_4\dp1.fne (114 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\E_4\krnln.fnr (5442 bytes)
%System%\dllcache\explorer.exe (29410 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\E_4\spec.fne (73 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\E_4\shell.fne (40 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\E_4\RegEx.fne (167 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\E_4\internet.fne (184 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\E_4\com.run (266 bytes)
%WinDir%\explorer.exe (3028 bytes)
%System%\XP-542ADE6B.EXE (7386 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\E_4\eAPI.fne (323 bytes)

Registry activity

The process XP-542ADE6B.EXE:1756 makes changes in the system registry.
The Trojan-Downloader 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 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"

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

[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"

[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"

[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"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{5c14c4f6-74da-11e2-81b0-000c29ec7fc5}]
"BaseClass" = "Drive"

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

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

[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\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"

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

[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" = "D1 D2 CC 81 D2 7E 6D 69 54 E1 91 B2 62 6D 47 97"

[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"

[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 Trojan-Downloader 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 Trojan-Downloader modifies IE settings for security zones to map all web-nodes that bypassing proxy to the Intranet Zone:

"ProxyBypass" = "1"

Proxy settings are disabled:

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

The Trojan-Downloader 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 Trojan-Downloader deletes the following registry key(s):

[HKCU\Software\Microsoft\Internet Explorer\TypedURLs]

The Trojan-Downloader deletes the following value(s) in system registry:

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

The process XP-A3C039FA.EXE:1788 makes changes in the system registry.
The Trojan-Downloader creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "FE EE F4 7E 5C 3D 7A 0C E7 4D E2 70 A9 8C 1D CC"

[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\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"

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

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

[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"

[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]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

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

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"XP-542ADE6B" = "%System%\XP-542ADE6B.EXE"

The process %original file name%.exe:1552 makes changes in the system registry.
The Trojan-Downloader creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "A9 2E C8 6B 10 C6 E9 B6 6B 14 42 E6 0F 25 19 60"

[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\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"

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

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

[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"

[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]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

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

Network activity (URLs)

URL IP
hxxp://cf-ssl59443-protected-c34.statcounter.com/counter.php?sc_project=3034266&java=0&security=297102af&invisible=0
hxxp://lb1.www.ms.akadns.net/
hxxp://hi.n.shifen.com/siletoyou
hxxp://ghs.googlehosted.com/ul.htm
hxxp://ghs.googlehosted.com/au.htm
hxxp://www3.l.google.com/site/wwwbloguser/au.htm
c34.statcounter.com 141.101.127.161
www.baihe.googlepages.com 74.125.192.121
www.bloguser.googlepages.com 74.125.192.121
sites.google.com 173.194.43.69
hi.baidu.com 180.76.2.41
www.microsoft.com 1.103.192.54
vampire008tw.xxxy.info Unresolvable


HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Trojan-Downloader's file once a user opens a drive's folder in Windows Explorer.


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):

    XP-A3C039FA.EXE:1788
    %original file name%.exe:1552

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

    %Documents and Settings%\%current user%\Cookies\Current_User@statcounter[1].txt (230 bytes)
    %Documents and Settings%\%current user%\Cookies\Current_User@statcounter[2].txt (420 bytes)
    %System%\com.run (1425 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\E_4\internet.fne (184 bytes)
    %Documents and Settings%\%current user%\Local Settings\History\History.IE5\MSHist012013021120130218\index.dat (266 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\E_4\spec.fne (73 bytes)
    %System%\ul.dll (2 bytes)
    %System%\og.edt (512 bytes)
    %System%\og.dll (692 bytes)
    %System%\eAPI.fne (1425 bytes)
    %System%\spec.fne (601 bytes)
    %System%\XP-A3C039FA.EXE (7386 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\E_4\eAPI.fne (323 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\S96BCDQ7\desktop.ini (67 bytes)
    %System%\RegEx.fne (673 bytes)
    %System%\internet.fne (673 bytes)
    %Documents and Settings%\%current user%\Local Settings\History\History.IE5\index.dat (266 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\E_4\RegEx.fne (167 bytes)
    %Documents and Settings%\%current user%\Start Menu\Programs\Startup\¡¡¡¡¡¡.lnk (1250 bytes)
    %Documents and Settings%\%current user%\Cookies\index.dat (776 bytes)
    %System%\krnln.fnr (7433 bytes)
    %System%\shell.fne (40 bytes)
    %Documents and Settings%\%current user%\Local Settings\History\History.IE5\MSHist012013030120130302\index.dat (202 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\S96BCDQ7\counter[1].gif (8 bytes)
    %System%\dp1.fne (601 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\Temporary Internet Files\Content.IE5\FM1R1YEI\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\Temporary Internet Files\Content.IE5\HHNZBBNU\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\History\History.IE5\desktop.ini (159 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\Temporary Internet Files\Content.IE5\ZF3ACG4L\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\Temporary Internet Files\Content.IE5\GUO12J11\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\E_4\dp1.fne (114 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\E_4\krnln.fnr (5442 bytes)
    %System%\dllcache\explorer.exe (29410 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\E_4\shell.fne (40 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\E_4\com.run (266 bytes)
    %WinDir%\explorer.exe (3028 bytes)
    %System%\XP-542ADE6B.EXE (7386 bytes)

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

    [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
    "XP-542ADE6B" = "%System%\XP-542ADE6B.EXE"

  5. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
  6. Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
  7. Reboot the computer.

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

No votes yet


Lavasoft is the maker of Ad-Aware, the world's most popular anti-malware software with over 450 million downloads.
© 2026 Lavasoft. All rights reserved.
Terms Of Use |   Privacy Policy


x

Our best antivirus yet!

Fresh new look. Faster scanning. Better protection.

Enjoy unique new features, lightning fast scans and a simple yet beautiful new look in our best antivirus yet!

For a quicker, lighter and more secure experience, download the all new adaware antivirus 12 now!

Download adaware antivirus 12
No thanks, continue to lavasoft.com
close x

Discover the new adaware antivirus 12

Our best antivirus yet

Download Now