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Threat Encyclopedia

JS_REDIR.BB

ANALYSIS BY

JasperM


PLATFORM:

Windows 2000, XP, Server 2003

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

  • Threat Type:Trojan

  • Destructiveness:No

  • Encrypted:

  • In the wild: Yes

OVERVIEW


This malicious JavaScript uses social engineering methods to lure users into performing certain actions that may, directly or indirectly, cause malicious routines to be performed. Specifically, it makes use of spammed email messages that contains text alleging the death of a certain famous celebrity.

To get a one-glance comprehensive view of the behavior of this Trojan, refer to the Threat Diagram shown below.

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

It redirects browsers to certain sites.

TECHNICAL DETAILS

File Size:

718 bytes

File Type:

Script

Memory Resident:

No

Initial Samples Received Date:

22 Aug 2010

Payload:

Redirects to other sites

Arrival Details

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

Other Details

This Trojan redirects browsers to the following sites:

  • http://{BLOCKED}us.com.mx/1.html - detected as HTML_REDIR.BA

SOLUTION

Minimum Scan Engine:

8.900

FIRST VSAPI PATTERN FILE:

7.402.06

FIRST VSAPI PATTERN DATE:

22 Aug 2010

VSAPI OPR PATTERN File:

7.403.00

VSAPI OPR PATTERN Date:

22 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

Remove malware files dropped/downloaded by JS_REDIR.BB

    HTML_REDIR.BA

Step 3

Scan your computer with your Trend Micro product to delete files detected as JS_REDIR.BB. 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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