Analysis by: Michael Cabel
 Modified by: Roland Marco Dela Paz
ALIASES:

Kaspersky : Exploit.JS.Pdfka.don

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

This Trojan may be downloaded from remote sites by other malware.

It takes advantage of unknown vulnerabilities in certain software to download malicious files. It executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

  TECHNICAL DETAILS

File Size: 40,467 bytes
File Type: PDF
Memory Resident: No
Initial Samples Received Date: 28 Apr 2011
Payload: Downloads files

Arrival Details

This Trojan may be downloaded from remote site(s) by the following malware:

  • JAVA_DLOAD.HBM

It may be downloaded from the following remote sites:

  • http://{BLOCKED}ng.info/games/2fdp.php

Download Routine

This Trojan accesses the following websites to download files:

  • http://{BLOCKED}auto.info/d.php - detected as TSPY_FTPMESO.HBM

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

  • Adobe Acrobat Reader

It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

  SOLUTION

Minimum Scan Engine: 8.900
FIRST VSAPI PATTERN FILE: 8.124.04
FIRST VSAPI PATTERN DATE: 28 Apr 2011

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.HBM

Step 3

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