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  Home / Viruses / Virus Encyclopedia

Trojan-Downloader.Win32.Agent.ahoe

Other versions: .ac, .bl, .bq, .fk, .mee, .pj, .qlh, .rs, .td, .tuc, .uj, .zf

Detection added Sep 24 2008
Update released Sep 24 2008 21:53 GMT
Description added Feb 24 2009

Technical details

This Trojan downloads another malicious program via the Internet and launches it on the victim machine without the user’s knowledge or consent. It is a Windows PE EXE file. It is 9216 bytes in size. It is packed using UPX. The unpacked file is approximately 38KB in size. It is written in C++.

Payload

The Trojan downloads files from the following URLs:

http://*****fdujt.info/?44ffa2
http://*****fdujt.info/i.php
http://*****fdujt.info/myh.php

At the time of writing, these links were not working.

The files will be saved to the current user’s Windows temporary directory with random names.

The Trojan then sends a request to the following address:

http://195.24.77.***/utest/?*****74&oo=2&75f2d3=33985db&ra=0

If the server does not respond, the Trojan will repeat the attempt after six minutes.

The Trojan also creates a unique identifier, “S_SERV_v0.66_Beta_erf” to flag its presence in the system.

Removal instructions

If your computer does not have an up-to-date antivirus, or does not have an antivirus solution at all, follow the instructions below to delete the malicious program:

  1. Delete the original Trojan file (the location will depend on how the program originally penetrated the victim machine).
  2. Delete all files from %Temporary Internet Files%.
  3. Empty the temporary directory (%Temp%).
  4. Update your antivirus databases and perform a full scan of the computer (download a trial version of Kaspersky Anti-Virus).
 

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