TROJ_PIDIEF.LAS

October 08, 2012
 Analysis by: Erika Bianca Mendoza
 PLATFORM:

Windows 2000, XP, Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This Trojan exploits a known vulnerability in Adobe Reader and Acrobat in order to drop BKDR_TIDSERV.DM. As a result, the malicious routines of this backdoor are also exhibited on the infected system.

  TECHNICAL DETAILS

File Size:

278,589 bytes

File Type:

PDF

Memory Resident:

No

Initial Samples Received Date:

03 Mar 2011

Payload:

Drops files

Dropping Routine

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

  • Vulnerability in the MULTIMEDIA.API in Adobe Reader and Acrobat

Other Details

More information on this vulnerability can be found below:

NOTES:
If exploited successfully, it drops and executes the following malware embedded in its code:

  • %ApplicationData%\Microsoft\ico.exe - detected as BKDR_TIDSERV.DM
As a result, the malicious routines of the said malware are also exhibited on the system.

  SOLUTION

Minimum Scan Engine:

8.900

Step 1

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Remove malware files dropped/downloaded by TROJ_PIDIEF.LAS

    BKDR_TIDSERV.DM

Step 3

Scan your computer with your Trend Micro product to delete files detected as TROJ_PIDIEF.LAS. 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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