TROJ_ARTIEF.NG

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.

It takes advantage of software vulnerabilities in certain software to drop malicious files. 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.

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

Installation

This Trojan drops and executes the following files:

• %User Temp%\WINWORD.EXE - detected as TSPY_ZBOT.NG

(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.)

It drops the following non-malicious file:

• {current malware path}\~$T Returns Repot 565411322.doc

Dropping Routine

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

• CVE-2012-0158

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

Other Details

This Trojan opens the following files:

• {current malware path}\~$T Returns Repot 565411322.doc

NOTES:
It opens the non-malicious file {current malware path}\~$T Returns Repot 565411322.doc as a decoy to trick user that they are opening a legitimate document.