Sophos

Troj/Ranck-BE

Aliases
  • Proxy-FBSR
  • Trojan-Proxy.Win32.Ranky.az
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Included in our products from January 2005 (3.89)
Protection available since 25 November 2004 13:17:10 (GMT)
Detected by All Sophos products

Action

Please follow the instructions for removing Trojans.

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\
dfasack = <path to EXE>

and delete it if it exists.

Close the registry editor.

More Information

Troj/Ranck-BE is a proxy Trojan for the Windows platform.

In order to run on system start, the Trojan creates the following registry entry:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
dfasack = <path to EXE>

Troj/Ranck-BE chooses a random port in the range 10000 to 42767 to listen for incoming http requests. The Trojan then attempts to contact several remote sites to register itself with a remote user.

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