Sophos

Troj/Banker-DJ

Aliases
  • Trojan-Spy.Win32.Banker.el
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Included in our products from August 2005 (3.96)
Protection available since 20 June 2005 20:13:27 (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
Microsoft Word Profissional
<Windows system folder>\protect\csrss.exe

and delete it if it exists.

Close the registry editor.

More Information

Troj/Banker-DJ is a multicomponent password stealing Trojan for the Windows platform targeted at customers of Brazilian banks.

Troj/Banker-DJ attempts to log keypresses entered into certain websites and online banking applications. The Trojan may display fake user interfaces in order to persuade the user to enter confidential details. Stolen information is sent by email to a remote user.

Troj/Banker-DJ may attempt to shut down anti-virus products. Troj/Banker-DJ is a multicomponent password stealing Trojan for the Windows platform targeted at customers of Brazilian banks.

When Troj/Banker-DJ is installed the following files are created:

<Windows system folder>\protect\csrss.exe
<Windows system folder>\protect\lsass.dll

where csrss.exe is the Trojan's main executable and lsass.dll is a keylogging dll.

Troj/Banker-DJ attempts to log keypresses entered into certain websites and online banking applications. The Trojan may display fake user interfaces in order to persuade the user to enter confidential details. Stolen information is sent by email to a remote user.

Troj/Banker-DJ may attempt to shut down anti-virus products.

The following registry entry is created to run csrss.exe on startup:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Microsoft Word Profissional
<Windows system folder>\protect\csrss.exe

Troj/Banker-DJ also marks its presence by creating the registry entries are created under:

HKLM\SOFTWARE\Sos\Validade\

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