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The Internet threat alert status is currently normal. At present, no major epidemics or other serious incidents have been recorded by Kaspersky Lab’s monitoring service. Internet threat level: 1

Trojan-Downloader.JS.Agent.gay

Detected Jun 17 2011 12:41 GMT
Released Jun 17 2011 15:56 GMT
Published Sep 26 2011 14:28 GMT

Technical Details
Payload
Removal instructions

Technical Details

A trojan program that downloads other malware from the internet without the user's knowledge and launches this for execution. The program is a HTML-page containing Java Script. 11995 bytes.


Payload

The trojan tries to run java script located on the attacker's server:

http://firef***stabs.com/<rnd1>.js
where <rnd1> is a random digital sequence.

The link did not work when creating the description.

To correctly run its code, the trojan uses the "noConflict" function from the jQuery java script library located at the following address:

https://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js


Removal instructions

If your computer has not been protected with anti-virus software and has been infected with malware, you will need to take the following actions to delete this:


MD5: 6FBC817CE50171A85CB4747037C41539
SHA1: A380ACE46987C06DDFAD14D43AD5889E52C4FA1F


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Trojan-Downloader

Programs classified as Trojan-Downloader download and install new versions of malicious programs, including Trojans and AdWare, on victim computers. Once downloaded from the Internet, the programs are launched or included on a list of programs which will run automatically when the operating system boots up.

Information about the names and locations of the programs which are downloaded are in the Trojan code, or are downloaded by the Trojan from an Internet resource (usually a web page).

This type of malicious program is frequently used in the initial infection of visitors to websites which contain exploits.


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