TROJ_ARTIEF.PRM
Exploit:Win32/CVE-2012-0158 (Microsoft), Exp/20120158-A (Sophos), EXP/CVE-2012-0158 (Antivir), Exploit.CVE-2012-0158.Gen (Bitdefender), MSOffice/CVE20120158.fam!exploit (Fortinet)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.
TECHNICAL DETAILS
Arrival Details
This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.
Dropping Routine
This Trojan takes advantage of the following software vulnerabilities to drop malicious files:
Other Details
More information on this vulnerability can be found below:
NOTES:
Once this Trojan successfully exploits the said vulnerability, it attempts to drop and execute the following malicious file:
- %User Temp%\dw20.EXE - detected as BKDR_INJECT.PRM
It then terminates the legitimate MS Word process WINDWORD.EXE execuate a new instance of WINWORD.EXE, to trick users into thinking that it is a normal document.
SOLUTION
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Remove grayware/spyware files dropped/downloaded by TROJ_ARTIEF.PRM
- BKDR_INJECT.PRM
Step 3
Scan your computer with your Trend Micro product to delete files detected as TROJ_ARTIEF.PRM. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
Step 4
Download and apply this security patch Refrain from using these products until the appropriate patches have been installed. Trend Micro advises users to download critical patches upon release by vendors.
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