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What is Trojan Agent.bxx

Posted on 10 August 2007 under Trojans and viruses

1. What is Trojan Agent.bxx?

Trojan Agent.bxx can be silently downloaded browsing suspicious websites. It intrudes computer under vtr???.dll filename where ??? corresponds to any 3 numbers (particular file list can be found below). Trojan Agent.bxx is related to Browser Helper Object.
Also known as Trojan-Downloader.Win32.Agent.bxx.

2. How to remove Trojan Agent.bxx:

  1. Internet connection might be disabled or Internet browser might be blocked by Trojan Agent.bxx, so it won't be possible to download any files to infected computer. In this case please download all files required for Trojan Agent.bxx removal to another computer and then transfer them on the infected one using CD/DVD or USB flash drive.
  2. To remove Trojan Agent.bxx download Spyware Doctor and install the program (for the installation guide click here). Before installation, make sure all other programs and windows are closed.
  3. After the installation, computer scan should be started automatically. If so, please move to the next step. If not, click "Status" on the left side menu and press "Scan Now" button to run computer scanner as shown in the picture below:

  4. After the scan has been completed and scan results have been generated, press "Fix Checked" button to remove Trojan Agent.bxx.

  5. Restart the computer to complete Trojan Agent.bxx removal procedure.

3. Trojan Agent.bxx files:

atzrdada.dll, vtr129.dll, vtr133.dll, vtr135.dll, vtr138.dll, vtr145.dll, vtr159.dll, vtr161.dll, vtr167.dll, vtr212.dll, vtr218.dll, vtr220.dll, vtr221.dll, vtr230.dll, vtr323.dll, vtr326.dll, vtr345.dll, vtr347.dll, vtr348.dll, vtr357.dll, vtr372.dll, vtr375.dll, vtr382.dll, vtr397.dll, vtr412.dll, vtr434.dll, vtr441.dll, vtr455.dll, vtr473.dll, vtroll.dll

4. Hijackthis entries:

O2 - BHO: IEHlprObj Class - {ABCDECF0-4B15-11D1-ABED-709549C10000} - C:\WINDOWS\System32\atzrdada.dll
O2 - BHO: IEHlprObj Class - {ABCDECF0-4B15-11D1-ABED-709549C10000} - C:\WINDOWS\system32\vtroll.dll
O2 - BHO: IEHlprObj Class - {ABCDECF0-4B15-11D1-ABED-709549C10000} - C:\WINDOWS\system32\vtr???.dll (??? replaced with numbers)