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Threat Encyclopedia

JS_REDIRCT.MAC

Malware type: JavaScript

Aliases: No Alias Found

In the wild: Yes

Destructive: No

Language: English

Platform: Windows 98, ME, NT, 2000, XP, Server 2003

Encrypted: No

Overall risk rating:

Reported infections:

Damage potential:

Medium

Distribution potential:

Low

Description: 

This JavaScript may be downloaded unknowingly by a user when visiting malicious Web sites. It may be hosted on a Web site and run when a user accesses the said Web site.

This is the Trend Micro detection for an obfuscated script which accesses and executes another JavaScript in the following location:

  • http://{BLOCKED}icksock.cn/r/g.js

However, as of this writing, the said URL is inaccessible.

Read more about this threat incident in the Malware Blog entry "Searches for Free Printable Items Lead to Malicious Domains."

For additional information about this threat, see:

Description created: Jan. 26, 2010 3:41:18 PM GMT -0800


TECHNICAL DETAILS


File type: PE

Size of malware: 1,751 Bytes

Initial samples received on: Jan 26, 2010

Details:

Arrival Details

This JavaScript may be downloaded unknowingly by a user when visiting malicious Web site(s).

It may be hosted on a Web site and run when a user accesses the said Web site.

This is the Trend Micro detection for an obfuscated script which accesses and executes another JavaScript in the following location:

  • http://{BLOCKED}icksock.cn/r/g.js

However, as of this writing, the said URL is inaccessible.

Affected Platforms

This JavaScript runs on Windows 98, ME, NT, 2000, XP, and Server 2003.


Analysis By: Erika Mendoza

Revision History:

First pattern file version: 6.806.06
First pattern file release date: Jan 27, 2010

SOLUTION


Minimum scan engine version needed: 8.900

Pattern file needed: 6.807.00

Pattern release date: Jan 27, 2010


Important note: The "Minimum scan engine" refers to the earliest Trend Micro scan engine version guaranteed to detect this threat. However, Trend Micro strongly recommends that you update to the latest version in order to get comprehensive protection. Download the latest scan engine here.

Solution:

For Windows ME and XP users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

 Step 1: Close all opened browser windows 

 Step 2: Scan your computer with your Trend Micro product to delete files detected as JS_REDIRCT.MAC  

*Note: 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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