Sophos

Troj/Certif-E

Aliases
  • TROJ_BANCOS.XE
  • PWS-Banker.r
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Included in our products from June 2005 (3.94)
Protection available since 14 April 2005 08:02:29 (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
mailman.exe
C:\WINDOWS\System32\mailman.exe

and delete it if it exists.

Close the registry editor.

More Information

Troj/Certif-E is a password stealing Trojan.

When run Troj/Certif-E will remove registry entries referencing terraxp.exe and msn_explorer.exe from under the following key:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\

In order to run automatically when Windows starts up the Trojan copies itself to the file mailman.exe in the Windows system folder and adds the registry entry:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run
mailman.exe
C:\WINDOWS\System32\mailman.exe

The Trojan monitors system activity and collects user credentials typed into the windows of various online banking applications. This information is stored in files created by the Trojan with a .txt extension within the %WINDOWS%/ssh folder which is also created by the Trojan.

Troj/Certif-E will then upload the contents of %WINDOWS%/ssh folder to a remote ftp server.

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