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JS_BLACOLE.IC
Malware type: Trojan
Destructive: No
Platform: Windows 2000, Windows XP, Windows Server 2003
Encrypted: Yes
In the wild: Yes

Overview


Infection Channel: Downloaded from the Internet

This malware is related to a mass compromise that leads to a series of redirections that ultimately point users to the Blackhole Exploit kit exploiting vulnerabilities cited in CVE-2010-0188 and CVE-2010-1885, respectively.

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

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

It inserts an IFRAME tag that redirects users to certain URLs. However, as of this writing, the said sites are inaccessible.

Technical Details


File size: 2,226 bytes
File type: Script
Initial samples received date: 17 Mar 2012

Arrival Details

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

Other Details

This Trojan inserts an IFRAME tag that redirects users to the following URLs:

  • http://{BLOCKED}arkoupons.net/main.php?page=89cd1f8b9fb67fbc

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

Solution


Minimum scan engine: 9.200
First VSAPI Pattern File: 8.846.01
First VSAPI Pattern Release Date: 17 Mar 2012
VSAPI OPR Pattern Version: 8.847.00
VSAPI OPR Pattern Release Date: 18 Mar 2012

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_BLACOLE.IC. 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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Analysis By: Michael Cabel

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