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HTML_CLICKER.ACE

October 08, 2012
 Analysis by: Christopher Daniel So
 ALIASES:

Downloader (Symantec), JS/Redirector (McAfee), Trojan-Clicker.HTML.IFrame.abn (Kaspersky), HTML/IFrame.psl (AntiVir), Trojan-Clicker.HTML.IFrame (Ikarus), Troj/Clickr-L (Sophos), Trojan.JS.Redirector.FB (Vba32)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 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.

It redirects browsers to certain sites. However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

HTML, HTM

Initial Samples Received Date:

29 Mar 2011

Arrival Details

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

Other Details

This Trojan redirects browsers to the following sites:

  • http://{BLOCKED}.{BLOCKED}.81.65/~cledo/1/a/seo/
  • http://{BLOCKED}.{BLOCKED}.81.65/~cledo/a/clickedcash/

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

  SOLUTION

Minimum Scan Engine:

8.900

FIRST VSAPI PATTERN FILE:

7.938.05

FIRST VSAPI PATTERN DATE:

29 Mar 2011

VSAPI OPR PATTERN File:

7.939.00

VSAPI OPR PATTERN Date:

29 Mar 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 HTML_CLICKER.ACE. 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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