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Date discovered:24/06/2011
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Low to medium
File size:97.280 Bytes
MD5 checksum:716C3440F71BBA151367A95494A44DA0
VDF version:
IVDF version:

 General Method of propagation:
   • No own spreading routine

   •  Kaspersky: Trojan.Win32.VBKrypt.djss
   •  TrendMicro: WORM_VB.IW
   •  Microsoft: Worm:Win32/Boinberg

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%\%number%.exe
   • %APPDATA%\hsced\svchost.exe

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

–  [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "SystemRem"="%APPDATA%\%number%.exe"

–  [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "SystemRem"="%APPDATA%\%number%.exe"

–  [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "svchost"="%APPDATA%\hsced\svchost.exe"

 Miscellaneous Mutex:
It creates the following Mutex:
   • __PDH_PLA_MUTEX__

 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 Thursday, September 1, 2011
Description updated by Andrei Ivanes on Thursday, September 15, 2011

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