Trojan-Dropper.Win32.Zegost_833eba8296

by malwarelabrobot on February 22nd, 2014 in Malware Descriptions.

Gen:Variant.Zusy.12077 (BitDefender), HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Win32.Generic!BT (VIPRE), Trojan.DownLoader6.23156 (DrWeb), Gen:Variant.Zusy.12077 (B) (Emsisoft), Artemis!833EBA829661 (McAfee), Trojan.SuspectCRC (Ikarus), Gen:Variant.Zusy.12077 (FSecure), Dropper.Generic6.AHXA (AVG), Win32:Dropper-LLP [Trj] (Avast), TROJ_AG.BF97A4AD (TrendMicro), Trojan-Dropper.Win32.Zegost.FD, Trojan-PSW.Win32.MSNPassword.FD, Trojan.Win32.FlyStudio.FD, GenericEmailWorm.YR (Lavasoft MAS)
Behaviour: Trojan-Dropper, Trojan-PSW, Trojan, Worm, EmailWorm


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: 833eba829661350ea7cf4adc89cab03c
SHA1: 22772e11e53a01035ecfc77cb2b58d8f5d6f4e9b
SHA256: ac2601b22c9eeb07762e0a53476ca19ec021ded6f35a4698029c2676e3cf3aac
SSDeep: 12288:2X6iywX2 IrNKKMVW4KYxwLNFWr GhGKr8i9 :QHmJrIKMY4HxwLNFWrdA
Size: 443899 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2009-12-06 00:50:41
Analyzed on: WindowsXP SP3 32-bit


Summary:

Trojan-Dropper. Trojan program, intended for stealth installation of other malware into user's system.

Payload

Behaviour Description
EmailWorm Worm can send e-mails.


Process activity

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

net1.exe:1736
%original file name%.exe:1536
net.exe:1724
ÓÎÏ·ÈËÉú¶Ò»»µã¹:1188

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

server.exe:1124

File activity

The process server.exe:1124 makes changes in the file system.
The Trojan-Dropper creates and/or writes to the following file(s):

%WinDir%\A1EA8DA6\svchsot.exe (1425 bytes)

The process %original file name%.exe:1536 makes changes in the file system.
The Trojan-Dropper creates and/or writes to the following file(s):

%WinDir%\Temp\ÓÎÏ·ÈËÉú¶Ò»»µã¹¤¾ß.exe (17657 bytes)
%WinDir%\Temp\server.exe (8567 bytes)

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

%Documents and Settings%\%current user%\Local Settings\Temp\nsu1.tmp (0 bytes)

The process ÓÎÏ·ÈËÉú¶Ò»»µã¹:1188 makes changes in the file system.
The Trojan-Dropper creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\cookie[1].js (571 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\jquery.resize[1].js (604 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\global-v2[1].png (1174 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\comm[1].js (1122 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\sea[2].js (5 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\login[1].css (1 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\merger[1].css (7 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\utils[2].js (12 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\jquery.resize[1].js (1 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\loginbg-m[1].png (1 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\showdialog[1].js (2 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\jquery[2].js (5441 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\merger[2].css (31 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\header[2].js (1 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\gamezone[1].js (3 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\ptui_ver[1].js (175 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\login[1].png (2 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\header[1].js (627 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\login[1].htm (809 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\utils[1].js (4 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\easydialog[1].js (3 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\dialog[1].js (731 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\jquery[1].js (6616 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\load[1].gif (771 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\loginbg-t[1].jpg (9288 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\dialog[2].js (1 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\gamezone[2].js (11 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\ptloginout[2].js (3 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\loginbg-b[1].jpg (6037 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\ptui_ver[2].js (233 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\commtool[2].js (207 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\footer[2].js (3 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\global[1].png (6 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\login[1].htm (1495 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\showdialog[2].js (6 bytes)
%Documents and Settings%\%current user%\Cookies\[email protected][1].txt (182 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\ptloginout[1].js (1 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\commtool[1].js (1989 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\easydialog[2].js (9 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\core[1].js (658 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\footer[1].js (1 bytes)
%Documents and Settings%\%current user%\Cookies\index.dat (964 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\sea[1].js (2 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\login[1].css (1846 bytes)

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

%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\jquery.resize[1].js (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\commtool[1].js (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\utils[1].js (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\ptloginout[1].js (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\merger[1].css (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\footer[1].js (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\showdialog[1].js (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\sea[1].js (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\login[1].css (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\easydialog[1].js (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\ptui_ver[1].js (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\dialog[1].js (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\gamezone[1].js (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\jquery[1].js (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\header[1].js (0 bytes)

Registry activity

The process net1.exe:1736 makes changes in the system registry.
The Trojan-Dropper creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "63 E3 81 EB C1 6E AB B3 EE 79 06 51 F5 D1 66 BE"

The process server.exe:1124 makes changes in the system registry.
The Trojan-Dropper creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "25 A4 FB DD 88 B2 61 21 63 C0 20 E0 A5 20 7D 91"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"A1EA8DA6" = "%WinDir%\A1EA8DA6\svchsot.exe"

The process %original file name%.exe:1536 makes changes in the system registry.
The Trojan-Dropper creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "3F F7 B8 4C 22 4B 62 9F 74 9C BC 63 1E 89 4D 63"

[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"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%WinDir%\temp]
"server.exe" = "server"

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

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

[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"

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

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

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

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%WinDir%\temp]
"ÓÎÏ·ÈËÉú¶Ò»»µã¹¤¾ß.exe" = "易语言程序"

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

The Trojan-Dropper 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-Dropper 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:

"UNCAsIntranet" = "1"

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

"ProxyBypass" = "1"

The process net.exe:1724 makes changes in the system registry.
The Trojan-Dropper creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "76 3C 28 FF 8A AA F9 B3 00 E1 1F 69 B7 3C 0A 7C"

The process ÓÎÏ·ÈËÉú¶Ò»»µã¹:1188 makes changes in the system registry.
The Trojan-Dropper 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"

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

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

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache]
"@xpsp3res.dll,-20001" = "Diagnose Connection Problems..."

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

[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"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 12 00 00 00 01 00 00 00 00 00 00 00"

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "26 7D 17 FD BF 9F BE 65 AF 26 42 7A 5A B7 84 9D"

[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\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

[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"

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

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

Network activity (URLs)

URL IP
hxxp://igame.qq.com/login.php?u1=http://igame.qq.com/acts/a20131016tgc/index.php 58.250.135.158
hxxp://igame.qq.com/merger?files=web2012/css/core/reset.css?v=20131107|web2012/css/core/global.css?v=20140120_pre|web2012/css/page/login.css?v=20130424
hxxp://igame.qq.com/v2.0/js/lib/seajs-2.1/sea.js
hxxp://igame.qq.com/build/v2.0/js/comm/header.js?v=20140116
hxxp://p34.tcdn.qq.com/images/igame/v2/global/global-v2.png
hxxp://igame.qq.com/build/v2.0/js/comm/footer.js?v=20140121
hxxp://p34.tcdn.qq.com/images/igame/v2/login/loginbg-m.png
hxxp://igame.qq.com/build/v2.0/js/lib/jquery.js?v=20131219
hxxp://ui.ptlogin2.qq.com/cgi-bin/login?daid=37&appid=563027201&s_url=http://igame.qq.com/acts/a20131016tgc/index.php&hide_title_bar=1&hide_close_icon=1&css=http://imgcache.qq.com/ptcss/b3/sc/563027201/login.css 112.90.83.106
hxxp://p34.tcdn.qq.com/images/igame/v2/login/loginbg-t.jpg
hxxp://igame.qq.com/build/v2.0/js/lib/cookie.js?v=20130424
hxxp://p34.tcdn.qq.com/images/igame/v2/login/loginbg-b.jpg
hxxp://igame.qq.com/build/v2.0/js/lib/commtool.js?v=20140120
hxxp://a1165.b.akamai.net/ptcss/b3/sc/563027201/login.css
hxxp://a1165.b.akamai.net/ptlogin/v4/style/0/images/load.gif
hxxp://a1165.b.akamai.net/ptlogin/ver/10068/js/comm.js?ptui_identifier=000E0110CB026FFFA100E49964EAA8EA011D51D8C374CE7C33F3BBD7BC40
hxxp://igame.qq.com/build/v2.0/js/comm/core.js?v=20140221_r
hxxp://igame.qq.com/build/v2.0/js/lib/showdialog.js
hxxp://igame.qq.com/build/v2.0/js/comm/gamezone.js?v=20140121
hxxp://igame.qq.com/build/v2.0/js/comm/utils.js?v=20140221_r
hxxp://p34.tcdn.qq.com/images/igame/v2/global/global.png
hxxp://igame.qq.com/build/v2.0/js/lib/easydialog.js?v=20131227_pre
hxxp://igame.qq.com/build/v2.0/js/lib/jquery.resize.js?v=20131203_r
hxxp://p34.tcdn.qq.com/images/igame/v2/login/login.png
hxxp://igame.qq.com/build/v2.0/js/widget/dialog.js?v=20140120
hxxp://ui.ptlogin2.qq.com/ptui_ver.js?v=0.7366769275535365
ossweb-img.qq.com 221.204.212.205
imgcache.qq.com 72.246.45.65
badjs.qq.com 112.90.140.84


HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation


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):

    net1.exe:1736
    %original file name%.exe:1536
    net.exe:1724
    ÓÎÏ·ÈËÉú¶Ò»»µã¹:1188

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

    %WinDir%\A1EA8DA6\svchsot.exe (1425 bytes)
    %WinDir%\Temp\ÓÎÏ·ÈËÉú¶Ò»»µã¹¤¾ß.exe (17657 bytes)
    %WinDir%\Temp\server.exe (8567 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\cookie[1].js (571 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\jquery.resize[1].js (604 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\global-v2[1].png (1174 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\comm[1].js (1122 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\sea[2].js (5 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\login[1].css (1 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\merger[1].css (7 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\utils[2].js (12 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\jquery.resize[1].js (1 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\loginbg-m[1].png (1 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\showdialog[1].js (2 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\jquery[2].js (5441 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\merger[2].css (31 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\header[2].js (1 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\gamezone[1].js (3 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\ptui_ver[1].js (175 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\login[1].png (2 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\header[1].js (627 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\login[1].htm (809 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\utils[1].js (4 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\easydialog[1].js (3 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\dialog[1].js (731 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\jquery[1].js (6616 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\load[1].gif (771 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\loginbg-t[1].jpg (9288 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\dialog[2].js (1 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\gamezone[2].js (11 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\ptloginout[2].js (3 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\loginbg-b[1].jpg (6037 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\ptui_ver[2].js (233 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\commtool[2].js (207 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\footer[2].js (3 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\global[1].png (6 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\login[1].htm (1495 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\showdialog[2].js (6 bytes)
    %Documents and Settings%\%current user%\Cookies\[email protected][1].txt (182 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\ptloginout[1].js (1 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\commtool[1].js (1989 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\easydialog[2].js (9 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UDWL4BC1\core[1].js (658 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IJT3DEFP\footer[1].js (1 bytes)
    %Documents and Settings%\%current user%\Cookies\index.dat (964 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4TOJWX4Z\sea[1].js (2 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Q9JK3VWX\login[1].css (1846 bytes)

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

    [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
    "A1EA8DA6" = "%WinDir%\A1EA8DA6\svchsot.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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