Analysis by: Sabrina Lei Sioting
 PLATFORM:

Windows 2000, XP, Server 2003

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  TECHNICAL DETAILS

File Size: 526,848 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 21 Apr 2011

Installation

This Trojan drops the following files:

  • %User Temp%\noh.exe
  • %User Temp%\XC000FW.txt
  • %system%\sysupbrnv7r1.dll

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003.)

Download Routine

This Trojan accesses the following websites to download files:

  • http://{BLOCKED}ublishing.com/images/stories/img.noh
  • http://www.{BLOCKED}quip.com/images/stories/mailpv.exe

It saves the files it downloads using the following names:

  • %User Temp%\mailpv.exe

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003.)