Threat Encyclopedia

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

It executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.

Arrival Details

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

Installation

This Trojan drops the following component file(s):

• %User Temp%\AdobeArm.tmp - detected by Trend Micro as BKDR_POISON.EVE

It drops the following non-malicious file:

• %User Temp%\Mandiant_APT2_Report.pdf

(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, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)

Dropping Routine

This Trojan takes advantage of the following software vulnerabilities to drop malicious files:

• (CVE-2011-2462) Vulnerability in U3D component in Adobe Reader and Acrobat

It executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.

NOTES:
It opens the non-malicious .PDF file %User Temp%\Mandiant_APT2_Report.pdf in order to hide its malicious routine.