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JS_EXPLOIT.GLT

November 21, 2012
 Analysis by: Michael Cabel
 PLATFORM:

Windows 2000, Windows XP, Windows 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 may be hosted on a website and run when a user accesses the said website.

  TECHNICAL DETAILS

File Size:

33,722 bytes

File Type:

HTML, HTM

Initial Samples Received Date:

20 Nov 2012

Arrival Details

This Trojan may be hosted on a website and run when a user accesses the said website.

NOTES:

This Trojan exploits certain versions of Adobe Flash Player. Once it successfully exploits the said vulnerability, it connects to the following URL where it is hosted to download and execute a possibly malicious SWF file:

  • {BLOCKED}/links/dkh29fhuhisdohsughsdhfjdc.php?

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

It also checks if the affected system has an outdated Java version.

  SOLUTION

Minimum Scan Engine:

9.300

FIRST VSAPI PATTERN FILE:

9.538.03

FIRST VSAPI PATTERN DATE:

20 Nov 2012

VSAPI OPR PATTERN File:

9.539.00

VSAPI OPR PATTERN Date:

21 Nov 2012

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

Scan your computer with your Trend Micro product to delete files detected as JS_EXPLOIT.GLT. 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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