TROJ_PIDIEF.UJ

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

As of this writing, the said sites are inaccessible.

Arrival Details

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Download Routine

This Trojan accesses the following websites to download files:

• http://11.{BLOCKED}dates.com/links/leading_weird_checks.php?eoqahs=3303023302&kdeolbxg=0834050a080937370607&ytexi=03&uwz=zshrvx&xwxqxl=styxiklb

It saves the files it downloads using the following names:

• %User Temp%\wpbt0.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.)

As of this writing, the said sites are inaccessible.

NOTES:

It executes the downloaded file through the following command regsvr32 -s %User Temp%\wpbt0.dll. As a result, the malicious routines of the downloaded file are exhibited on the affected system.