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TROJ_PIDIEF.ACV

March 25, 2010
 Analysis by: adel
 PLATFORM:

Windows 98, ME, NT, 2000, XP, Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


This Trojan has received attention from independent media sources and/or other security firms.

To get a one-glance comprehensive view of the behavior of this Trojan, refer to the Threat Diagram shown below.

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

It takes advantage of software vulnerabilities in certain software to drop malicious files. It executes the files it drops, prompting the affected system to exhibit the malicious routines they contain.

  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 drops the following files:

  • %Windows%\Updater.exe

(Note: %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)

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

  • Adobe Reader

It executes the files it drops, prompting the affected system to exhibit the malicious routines they contain.

Other Details

More information on this vulnerability can be found below:

  • Adobe Security Bulletin APSB10-07
  • Adobe TIFF File Vulnerability
  • CVE-2010-0188

  SOLUTION

Minimum Scan Engine:

8.900

VSAPI OPR PATTERN File:

6.951.00

VSAPI OPR PATTERN Date:

25 Mar 2010

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.ACV

Step 3

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