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Troj/BankAsh-Q

Aliases
  • Trojan-Spy.Win32.Banker.zu
  • Win32/TrojanDownloader.Small.AIN
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 2 June 2006 05:25:26 (GMT)
Detected by All Sophos products
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Action

More Information

Troj/BankAsh-Q is an information stealing Trojan for the Windows platform.

Troj/BankAsh-Q includes functionalities to:

- download, install and run new software
- steal information
- terminate processes related to Giant AntiSpyware
- terminate processes and remove registry entries related to security and anti-virus processes
- modify the HOSTS file

When Troj/BankAsh-Q is installed it creates the file <System>\rwl.dll and this file is detected as Troj/BankAsh-Q.

The file ash2.dll is registered as a COM object and Browser Helper Object (BHO) for Microsoft Internet Explorer, creating registry entries under:

HKCR\CLSID\(33E8230A-AFA8-4db4-8684-CBA061C98D1E)
HKCR\Interface\(33E8230A-AFA8-4db4-8684-CBA061C98D1E)
HKCR\Interface\(35A22488-DCFE-459C-A811-CFC81687B404)
HKCR\TypeLib\(DF7B63CA-0287-4FEC-AD99-598519A78E57)

Troj/BankAsh-Q will spy on a user's internet access. When certain banking and finance websites are accessed, the Trojan can display a fake login page or log keyboard presses in order to steal username and password information.

Periodically, Troj/BankAsh-Q will send the stolen details to a remote server.

Troj/BankAsh-Q may modify the file <System>\drivers\etc\hosts.

Registry entries are created under:

HKCR\Classes\WriteFile.WriteFile
HKCR\Classes\WriteFile.WriteFile.1

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