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TROJ_CVE20120158.RT

August 26, 2015
 Analysis by: RonJay Kristoffer Caragay
 ALIASES:

Exploit.RTF.CVE-2012-0158 (v) (Sunbelt); Exploit.RTF-ObfsStrm.Gen (BitDefender); Exp.RTF.CVE-2012-0158.A (QuickHeal)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware

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 does not have any propagation routine.

It does not have any backdoor routine.

  TECHNICAL DETAILS

File Size:

203,308 bytes

File Type:

RTF, DOC

Memory Resident:

Yes

Initial Samples Received Date:

02 Aug 2014

Payload:

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.

Other System Modifications

This Trojan modifies the following file(s):

  • {malware path and file name} - modifies itself into a normal file

Propagation

This Trojan does not have any propagation routine.

Backdoor Routine

This Trojan does not have any backdoor routine.

NOTES:

This Trojan takes advantage of the following software vulnerabilities to execute malicious code:

The malicious code will inject a malicious executable into its process (WINWORD.exe) detected as BKDR_EVILOGE.SM1.

  SOLUTION

Minimum Scan Engine:

9.750

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 malware/grayware files dropped/downloaded by TROJ_CVE20120158.RT. (Note: Please skip this step if the threats listed below have already been removed.)

     
    • BKDR_EVILOGE.SM1

Step 3

Scan your computer with your Trend Micro product to delete files detected as TROJ_CVE20120158.RT. 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 these security patches 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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