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JS_REDIR.GQ

September 23, 2010
 Modified by: Michael Cabel
 PLATFORM:

Windows 2000, XP, Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This malware has received attention from independent media sources and/or other security firms. These indicate that this malware poses a high risk to users due to the increased possibility of infection.

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

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

This is the Trend Micro detection for Web pages that were compromised through the insertion of a certain malicious script.

  TECHNICAL DETAILS

File Size:

13,966 bytes

File Type:

Script

Memory Resident:

No

Initial Samples Received Date:

22 Sep 2010

Payload:

Executes another malware

Arrival Details

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

Other Details

This is the Trend Micro detection for Web pages that were compromised through the insertion of a certain malicious script.

It inserts the following IFRAME code in webpages:

  • http://{BLOCKED}h.co.cc/get/?refresh=ssl&showtopic=boz&catid=168&on=on
  • http://{BLOCKED}g.co.cc/wiki/index.php?table=img&past=0&p=168&version=boz&pool=off' width='1' height='1' style='visibility: hidden;

It does the following:

  • Accesses the following website to execute a script that Trend Micro detects as JS_IFRAME.AVX:
    • http://{BLOCKED}rmc.com/iframefile.js

  SOLUTION

Minimum Scan Engine:

8.900

VSAPI PATTERN File:

7.482.08

VSAPI PATTERN Date:

22 Sep 2010

VSAPI PATTERN Date:

9/22/2010 12:00:00 AM

FIRST VSAPI PATTERN FILE:

6.668.04

FIRST VSAPI PATTERN DATE:

03 Dec 2009

VSAPI OPR PATTERN File:

7.489.00

VSAPI OPR PATTERN Date:

25 Sep 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

Close all opened browser windows

Step 3

Remove malware files dropped/downloaded by JS_REDIR.GQ

Step 4

Scan your computer with your Trend Micro product to delete files detected as JS_REDIR.GQ. 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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