Analysis by: Michael Cabel
 Modified by: Christopher Daniel So
 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 Trojan executes downloaded files whose malicious routines are exhibited by the affected system.

It redirects browsers to certain sites.

  TECHNICAL DETAILS

File Size: 353 bytes
File Type: HTML, HTM
Memory Resident: No
Initial Samples Received Date: 09 Aug 2010

Download Routine

Trend Micro detects the dowloaded file as:

  • HTML_IFRAME.WA

It executes downloaded files :

    whose malicious routines are exhibited by the affected system.

    Other Details

    This Trojan redirects browsers to the following sites:

    • http://{BLOCKED}essfreegift.com/x.html

      SOLUTION

    Minimum Scan Engine: 8.900
    VSAPI OPR PATTERN File: 7.372.02
    VSAPI OPR PATTERN Date: 09 Aug 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

    Scan your computer with your Trend Micro product to delete files detected as HTML_REDIR.AY. 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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