Virus:TR/Vundo.GT
Date discovered:16/05/2008
Type:Trojan
In the wild:No
Reported Infections:Low to medium
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:29.824 Bytes
MD5 checksum:60d4769dcdf9eb16356af5ab135c1b5e
IVDF version:7.00.04.47 - Friday, May 16, 2008

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Mcafee: Vundo trojan
   •  Panda: Spyware/Virtumonde
   •  Eset: Win32/Adware.Virtumonde application
   •  Bitdefender: Trojan.Vundo.EMO


Platforms / OS:
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003


Side effects:
   • Registry modification
   • Steals information
   • Third party control

 Files It copies itself to the following location:
   • %SYSDIR%\%random character string%.dll



It deletes the initially executed copy of itself.

 Registry The following registry keys are added:

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\
   %random character string%]
   • "Asynchronous"=dword:00000001
   • "DllName"="%malware dll%
   • "Impersonate"=dword:00000000
   • "Logon"="o"
   • "Logoff"="f"

– [HKCR\CLSID\%generated CLSID%\InprocServer32]
   • @=" %SYSDIR%\%malware dll%"
   • "ThreadingModel"="Both"

 Backdoor Contact server:
One of the following:
   • http://82.98.235.**********
   • http://65.243.103.**********

As a result it may send information and remote control could be provided.

 File details Programming language:
 The malware program was written in MS Visual C++.


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

Description inserted by Thomas Wegele on Friday, June 6, 2008
Description updated by Thomas Wegele on Friday, June 6, 2008

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