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Virus:TR/PSW.OnlineGames.KDNF.1
Date discovered:27/08/2010
Type:Trojan
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:106.936 Bytes
MD5 checksum:4b382755f12595d7cdcf8109c6da2435
IVDF version:7.10.11.31 - Friday, August 27, 2010

 General Aliases:
   •  Mcafee: PWS
   •  Sophos: Mal/Generic-A
   •  Bitdefender: Trojan.PWS.Onlinegames.KDNF
   •  Panda: W32/Lineage.HGE
   •  Eset: Win32/PSW.OnLineGames.NLI


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


Side effects:
   • Drops malicious files
   • Registry modification

 Files It copies itself to the following location:
   • %SYSDIR%\amvo.exe



It deletes the following files:
   • %TEMPDIR%\7sf3d4v.sys
   • %SYSDIR%\wincab.sys



The following files are created:

%TEMPDIR%\58.dll Further investigation pointed out that this file is malware, too. Detected as: TR/Crypt.NSPM.Gen

%SYSDIR%\wincab.sys Further investigation pointed out that this file is malware, too. Detected as: Rkit/Vanti.hl.1

%SYSDIR%\amvo0.dll Further investigation pointed out that this file is malware, too. Detected as: TR/PSW.OnlineGames.KDNF

%TEMPDIR%\7sf3d4v.sys Further investigation pointed out that this file is malware, too. Detected as: Rkit/Vanti.hl.1




It tries to execute the following file:

Filename:
   • "%PROGRAM FILES%\Internet Explorer\IEXPLORE.EXE"

 Registry The following registry key is added in order to run the process after reboot:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "amva"="%SYSDIR%\amvo.exe"

 Injection –  It injects the following file into a process: %SYSDIR%\amvo0.dll

    Process name:
   • explorer.exe


 File details Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with a runtime packer.

Descrizione inserita da Petre Galan su mercoledì 22 settembre 2010
Descrizione aggiornata da Petre Galan su mercoledì 22 settembre 2010

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