Analysis by: Christopher Daniel So

 ALIASES:

Trojan-Downloader.JS.Iframe.cuv (Kaspersky), Troj/JSRedir-GC (Sophos)

 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

Infection Channel: Downloaded from the Internet

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

It inserts an IFRAME tag that redirects users to certain URLs.

  TECHNICAL DETAILS

File Size: Varies
File Type: JS
Initial Samples Received Date: 16 Mar 2012

Arrival Details

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

Other Details

This Trojan inserts an IFRAME tag that redirects users to the following URLs:

  • http://{BLOCKED}6.in/index.php?0acb5dbb36f93141b027d416261af42e
  • http://{BLOCKED}udes.in/index.php?9a41e20f564247648add4e6f1ec18e65

  SOLUTION

Minimum Scan Engine: 9.200
VSAPI OPR PATTERN File: 8.841.00
VSAPI OPR PATTERN Date: 16 Mar 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

Close all opened browser windows

Step 3

Scan your computer with your Trend Micro product to delete files detected as JS_IFRAME.HBA. 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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