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JS_DLOADER.OFG

October 09, 2012
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003, Windows Vista, Windows 7

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan executes when a user accesses certain websites where it is hosted.

Once a compromised site is visited, the user is redirected to a certain malicious site. However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size:

692 bytes

File Type:

JS

Initial Samples Received Date:

12 Dec 2011

Arrival Details

This Trojan executes when a user accesses certain websites where it is hosted.

Other Details

Once a compromised site is visited, the user is redirected to the following malicious site:

  • http://{BLOCKED}atia.{BLOCKED}e.be/showthread.php?t=37220338

However, as of this writing, the said sites are inaccessible.

  SOLUTION

Minimum Scan Engine:

9.200

FIRST VSAPI PATTERN FILE:

8.640.05

FIRST VSAPI PATTERN DATE:

12 Dec 2011

VSAPI OPR PATTERN File:

8.641.00

VSAPI OPR PATTERN Date:

13 Dec 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

Close all opened browser windows

Step 3

Scan your computer with your Trend Micro product to delete files detected as JS_DLOADER.OFG. 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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