TROJ_ARTIEF.TIB
Exploit:Win32/CVE-2012-0158.N (Microsoft)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
This Trojan takes advantage of vulnerabilities in Microsoft Office that could allow remote code execution. After successfully exploiting the said vulnerability, it drops a file detected as BKDR_SWAMI.TIB.
Upon execution, it opens a .DOC file in order to hide its malicious routines from the user.
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It executes the files it drops, prompting the affected system to exhibit the malicious routines they contain.
TECHNICAL DETAILS
Varies
Other
No
11 Aug 2012
Drops files
Arrival Details
This Trojan 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 the following non-malicious file:
- %User Temp%\AAAA
(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.)
Dropping Routine
This Trojan drops the following files:
It takes advantage of the following software vulnerabilities to drop malicious files:
It executes the files it drops, prompting the affected system to exhibit the malicious routines they contain.
NOTES:
Upon execution, this backdoor opens the non-malicious dropped file %User Temp%\AAAA in order to hide its malicious routines from the user.
SOLUTION
9.200
9.318.02
13 Aug 2012
9.319.00
13 Aug 2012
Step 1
For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you to allow full scanning of your computer.
Step 2
Remove malware files dropped/downloaded by TROJ_ARTIEF.TIB