Virus:TR/Agent.tvb
Date discovered:10/03/2008
Type:Trojan
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low to medium
Damage Potential:Low to medium
Static file:Yes
File size:282.648 Bytes
MD5 checksum:4866d9e311abf46c17cef1ad5294c194
IVDF version:7.00.03.07 - Monday, March 10, 2008

 General Aliases:
   •  Mcafee: Generic BackDoor.f trojan
   •  Sophos: W32/Zipwire-A
   •  Panda: Bck/VB.ABN
   •  Eset: Win32/TrojanDropper.VB.NAI
   •  Bitdefender: Trojan.Generic.2128081


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


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

 Files  It copies itself to the following location. This file has random bytes appended so it may differ from the original one:
   • %WINDIR%\Fonts\svchost.exe




It tries to download some files:

– The location is the following:
   • http://www.oday-warez.com/**********-%number%.html
At the time of writing this file was not online for further investigation.

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

–  [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "Host Process"="%WINDIR%\Fonts\svchost.exe"

 File details Programming language:
 The malware program was written in Visual Basic.


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

Description inserted by Petre Galan on Monday, November 16, 2009
Description updated by Petre Galan on Monday, November 16, 2009

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