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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.HTML.Agent.ry

Detected Aug 03 2010 15:42 GMT
Released Aug 04 2010 02:01 GMT
Published Sep 26 2011 09:03 GMT

Technical Details
Payload
Removal instructions

Technical Details

A trojan program that downloads other software to the computer without the user's knowledge and launches this software for execution. It is a Visual Basic Script (VBS), located in a HTML document. 1147 bytes.


Payload

After opening the infected page in the browser, the trojan sets the size of the browser window at "600x400" and places the window in the center of the screen. The trojan then tries to load the web resource located at the following link in the browser window:

http://www.msnb***m.me/set_inf.php?id=op1.wmv&sid=3401ef05c7c596367be0ae544b7a6f6e&f=1
The link did not work when creating the description.


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:

  1. Delete the original trojan file (its location on the infected computer will depend on how the program got onto the computer).
  2. Clear the Temporary Internet Files directory containing the infected files (How to delete infected files in the Temporary Internet Files folder?):
    %Temporary Internet Files% 
  3. Run a full Kaspersky Antivirus scan of the computer with updated antivirus databases (download trial version).

[MD5: 46d8d2a5d53c9eb9c4b043d6a505523f]
[SHA1: 5a15b748051a5320fc0e9f95d451f9f512b1615c]


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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.


Other versions

Aliases

Trojan-Downloader.HTML.Agent.ry (Kaspersky Lab) is also known as:

  • Troj/VBS-AD (Sophos)
  • Trojan:HTML/Porny.C (MS(OneCare))
  • a variant of HTML/TrojanDownloader.Agent.FAMISLU trojan (Nod32)
  • JS:Agent-HI [Trj] (AVAST)
  • Trojan-Downloader.HTML.Agent (Ikarus)
  • NseCheckFile2() returned 0x00010018 (Norman)