JS_REDIREC.SMB

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

Trojan:JS/Redirector.EZ (Microsoft), Trojan.Adclicker (Symantec), HTML/Redir.C (FProt), HTML/Refresh.AH trojan (Nod32), HTML/Redirector.AN (AntiVir), JS/Redir (AVG), HTML/Redir.C (Authentium)

 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 arrives as attachment to mass-mailed email messages.

It redirects browsers to certain sites.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

HTML, HTM

Memory Resident:

No

Initial Samples Received Date:

10 Jan 2011

Arrival Details

This Trojan arrives as attachment to mass-mailed email messages.

Other Details

This Trojan redirects browsers to the following sites:

  • http://www.{BLOCKED}nnect.nl/x.html

  SOLUTION

Minimum Scan Engine:

8.900

FIRST VSAPI PATTERN FILE:

7.758.13

FIRST VSAPI PATTERN DATE:

10 Jan 2011

VSAPI OPR PATTERN File:

7.759.00

VSAPI OPR PATTERN Date:

11 Jan 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 JS_REDIREC.SMB. 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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