Analysis by: Michael Cabel
 Modified by: Karl Dominguez
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan arrives as attachment to mass-mailed email messages. It may be downloaded by other malware/grayware/spyware from remote sites.

  TECHNICAL DETAILS

File Size: 654,375 bytes
File Type: PDF
Memory Resident: No
Initial Samples Received Date: 29 Mar 2011

Arrival Details

This Trojan arrives as attachment to mass-mailed email messages.

It may be downloaded by other malware/grayware/spyware from remote sites.

Installation

This Trojan drops the following files:

  • %Current%\iso88591
  • %User Temp%\Adobe-.pdf
  • %Program Files%\Common Files\Microsoft Shared\update.exe

(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.. %Program Files% is the default Program Files folder, usually C:\Program Files.)

  SOLUTION

Minimum Scan Engine: 8.900
VSAPI OPR PATTERN File: 7.938.04
VSAPI OPR PATTERN Date: 29 Mar 2011

Step 1

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

Step 2

Search and delete this file

[ Learn More ]
There may be some component files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden files and folders in the search result.

  • %Current%\iso88591
  • %User Temp%\Adobe-.pdf
  • %Program Files%\Common Files\Microsoft Shared\update.exe

Step 3

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


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