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Virus:WORM/Boinberg.A.105
Date discovered:27/06/2011
Type:Worm
In the wild:No
Reported Infections:Low
Distribution Potential:Medium to high
Damage Potential:Low to medium
Static file:Yes
File size:136.192 Bytes
MD5 checksum:67227363A782C205ECBB0784FB8D3D89
VDF version:7.11.10.106 - Monday, June 27, 2011
IVDF version:7.11.10.106 - Monday, June 27, 2011

 General Methods of propagation:
    Autorun feature
    Messenger


Aliases:
   •  Kaspersky: Trojan.Win32.VBKrypt.dxbh
     Microsoft: Worm:Win32/Boinberg
     DrWeb: BackDoor.Cybergate.1


Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003
    Windows Vista
    Windows 7


Side effects:
   • Drops files
   • Registry modification

 Files It copies itself to the following locations:
   • %APPDATA%\nvidia\nvidia.exe
   • %APPDATA%\%number%.exe

 Registry To each registry key one of the values is added in order to run the processes after reboot:

  [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "RestoreSys"="C:\Documents and Settings\Administrator\Application Data\%number%.exe"

  [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "RestoreSys"="C:\Documents and Settings\Administrator\Application Data\%number%.exe"

 Messenger It is spreading via Messenger. The characteristics are described below:

Windows Live Messenger

 Miscellaneous Accesses internet resources:
   • http://www.geobytes.com/iplocator.htm
Checks for debugger or virtual machine using time related techniques.

 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 the following runtime packer:
   • UPX

Description inserted by Andrei Ilie on Monday, October 10, 2011
Description updated by Andrei Ilie on Tuesday, October 11, 2011

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