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Virus:TR/Agent.1227891
Date discovered:21/07/2008
Type:Trojan
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low to medium
Damage Potential:Low to medium
Static file:Yes
File size:1.227.891 Bytes
MD5 checksum:bbfa52e3cade2e498e359e8cd33c058f
IVDF version:7.00.05.142 - Monday, July 21, 2008

 General Method of propagation:
    Autorun feature


Aliases:
   •  Mcafee: W32/Autorun.worm.h
   •  Sophos: W32/AutoRun-MO
   •  Panda: W32/Autorun.JKX
   •  Eset: Win32/FlyStudio.NDL
   •  Bitdefender: Trojan.Agent.AOQE


Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003


Side effects:
   • Downloads a malicious file
   • Drops malicious files
   • Registry modification

 Files It copies itself to the following locations:
   • %SYSDIR%\XP-D41D8CD9.EXE
   • %drive%\Recycled.exe
   • %drive%\%all directories%\%folder name% .exe



The following files are created:

%HOME%\Start Menu\Programs\Startup\.lnk This is a non malicious text file with the following content:
   • %code that runs malware%

%drive%\autorun.inf This is a non malicious text file with the following content:
   • %code that runs malware%

%TEMPDIR%\E_4\RegEx.fne
%SYSDIR%\og.dll
%SYSDIR%\shell.fne
%TEMPDIR%\E_4\internet.fne
%TEMPDIR%\E_4\spec.fne
%TEMPDIR%\E_4\com.run
%TEMPDIR%\E_4\eAPI.fne
%TEMPDIR%\E_4\dp1.fne
%SYSDIR%\RegEx.fne
%SYSDIR%\ul.dll
%SYSDIR%\og.edt
%TEMPDIR%\E_4\shell.fne
%SYSDIR%\spec.fne
%TEMPDIR%\E_4\krnln.fnr
%SYSDIR%\krnln.fnr



It tries to download a file:

The location is the following:
   • http://www.yeanqin.com/**********

 Registry One of the following values is added in order to run the process after reboot:

  [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "XP-DA36C805"="%SYSDIR%\XP-DA36C805.EXE"

 Injection – It injects itself as a thread into a process.

    Process name:
   • explorer.exe


Description inserted by Petre Galan on Thursday, March 18, 2010
Description updated by Petre Galan on Thursday, March 18, 2010

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