¿Necesita ayuda? Pregunte a la comunidad o contrate a un experto.
Ir a Avira Answers
Date discovered:21/02/2010
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low to medium
Damage Potential:Low to medium
Static file:Yes
File size:92.160 Bytes
MD5 checksum:ffab4b224a1bcf0f43a724fd91ea6c0f
IVDF version: - Saturday, February 20, 2010

 General Method of propagation:
    Autorun feature

   •  Sophos: Mal/Generic-A
   •  Panda: W32/Gamania.MH
   •  Eset: Win32/PSW.OnLineGames.NWF
   •  Bitdefender: Trojan.Generic.3219068

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

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

 Files It copies itself to the following locations:
   • %drive%\qw6t0mpm.exe
   • %TEMPDIR%\xvassdf.exe

It deletes the initially executed copy of itself.

The following files are created:

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

%TEMPDIR%\4tddfwq0.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Agent.87040.2

It tries to download a file:

The location is the following:
   • http://www.yahoosd3.com/1rb/**********

It tries to executes the following file:

   • "%PROGRAM FILES%\Internet Explorer\iexplore.exe"

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

   • "54dfsger"="%TEMPDIR%\xvassdf.exe"

The following registry keys are changed:

Various Explorer settings:

   New value:
   • "Hidden"=dword:0x00000002
   • "ShowSuperHidden"=dword:0x00000000

   New value:
   • "NoDriveTypeAutoRun"=dword:0x00000091

   New value:
   • "CheckedValue"=dword:0x00000000

 Injection –  It injects the following file into a process: %TEMPDIR%\4tddfwq0.dll

    Process name:
   • explorer.exe

It injects itself as a remote thread into a process.

    Process name:
   • iexplore.exe

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

Descripción insertada por Petre Galan el miércoles 7 de abril de 2010
Descripción actualizada por Petre Galan el jueves 8 de abril de 2010

Volver . . . .
https:// Esta ventana está cifrada para su seguridad.