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JS_BLACOLE.YQ

July 30, 2013
 Analysis by: Rhena Inocencio
 ALIASES:

Trojan:HTML/BlacoleRef.B (Microsoft), Mal/JSRedir-H (Sophos)

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

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

  • 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.

It redirects browsers to certain sites.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

HTML, HTM

Initial Samples Received Date:

30 Jul 2013

Payload:

Connects to URLs/IPs

Arrival Details

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

Other Details

This Trojan redirects browsers to the following sites:

  • http://{BLOCKED}taltech.com/lanyard/flatulence.js - detected as HTML_REDIR.XB
  • http://{BLOCKED}sterfarmmachinery.co.uk/courbet/travel.js - detected as HTML_REDIR.XB
  • http://{BLOCKED}.{BLOCKED}ine.org/worsens/patronizingly.js - detected as HTML_REDIR.XB

NOTES:

This may be hosted on the following site:

  • http://{BLOCKED}6062.{BLOCKED}p.jp/dust/index.html

The user may be redirected to this page if he/she accessess the following site:

  • http://bit.ly/14dikv2

  SOLUTION

Minimum Scan Engine:

9.300

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Remove the malware/grayware file dropped/downloaded by JS_BLACOLE.YQ

     
    • HTML_REDIR.XB

Step 3

Close all opened browser windows

Step 4

Scan your computer with your Trend Micro product to delete files detected as JS_BLACOLE.YQ. 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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