Sophos

Troj/Banker-AQ

Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Included in our products from February 2005 (3.90)
Protection available since 10 January 2005 13:30:37 (GMT)
Detected by All Sophos products

Action

Please follow the instructions for removing Trojans.

Change any data that may have become compromised.

Windows NT/2000/XP/2003

In Windows NT/2000/XP/2003 you will also need to edit the following registry entry. The removal of this entry is optional in Windows 95/98/Me. Please read the warning about editing the registry.

At the taskbar, click Start|Run. Type 'Regedit' and press Return. The registry editor opens.

Before you edit the registry, you should make a backup. On the 'Registry' menu, click 'Export Registry File'. In the 'Export range' panel, click 'All', then save your registry as Backup.

Locate the HKEY_LOCAL_MACHINE entry:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
FirewallActivies =
%System%\3041\csrss.exe

and delete it if it exists.

Close the registry editor.

More Information

Troj/Banker-AQ is a password stealing Trojan targeted at Brazilian online financial service users.

Troj/Banker-AQ will monitor a user's internet access. When certain preconfigured sites are visited the Trojan will log keypresses in an attempt to steal confidential login details.

Troj/Banker-AQ copies itself to a new folder under the Windows system folder and sets the following registry entry to run itself when the user logs on to the infected computer:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
FirewallActivies =
%System%\3041\csrss.exe

Troj/Banker-AQ also attempts to terminate Norton Anti-virus.

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