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Virus Profile: JS/Blacole-Redirector.aa

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 7/14/2012
Date Added: 7/14/2012
Origin: N/A
Length: Varies
Type: Trojan
Subtype: Script
DAT Required: 6772
Removal Instructions
   
 
 
   

Description

This is a Trojan detection. Unlike viruses, Trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include e-mail, malicious or hacked Web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.

Aliases

  • Sophos         - Mal/Iframe-AF
  • Kaspersky - Trojan-Downloader.JS.Agent.gsv
  • Fsecure     - Trojan.JS.Iframe.BPN
  • Microsoft   - Trojan: JS/BlacoleRef.W

Indication of Infection

Because this is a generic detection there is no specific description of the activity undertaken by JavaScript detected under this name, however these can include malicious activity such as downloading and executing files or scripts.

Methods of Infection

Trojans do not self-replicate. They are spread manually, often under the premise that the executable is something beneficial. Distribution channels include IRC, peer-to-peer networks, newsgroup postings, e-mail, etc.
   

Virus Characteristics

“JS/Blacole-Redirect.aa” is the detection for JavaScript contained within Web pages.

“JS/Blacole-Redirect.aa” is a JavaScript Trojan that redirects the browser to a malicious website that contains an instance of the Blackhole exploit kit.

The Backhole exploit kit may exploit vulnerabilities in certain software that may be installed in the victim computer. After the successful exploitation, it may lead to the download and execution of other malicious files.

Also this detection uses the following recent injection techniques in order to make a connection to randomly generated malicious domain.

  • / * km0ae9gr6m * /
  •  / * qhk6sa6g1c * /

The above injection techniques redirects to the following IP Addresses 78.46.[Removed].101 in order to make a connection to the below malicious URL with the help of iframe.

  • hxxp://pch[Removed]je.ru/runforestrun?sid=botnet2
   

All Users:
Use current engine and DAT files for detection and removal.

Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).