Sophos

Troj/Xorpix-F

Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 19 June 2006 13:17:24 (GMT)
Detected by All Sophos products
  • Endpoint Security and Control 9.0
  • Small business solutions 4.0

Action

More Information

Troj/Xorpix-F is a proxy Trojan that allows a remote attacker to route network traffic through the infected computer. Troj/Xorpix-F is a proxy Trojan that allows a remote attacker to route network traffic through the infected computer.

When Troj/Xorpix-F is installed it creates the file <User>\Documents\Settings\arm32.dll. This file is also detected as Troj/Xorpix-F.

The following registry entries are created to run code exported by arm32.dll on startup:

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\arm32reg
DllName
<User>\Documents\Settings\arm32.dll

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\arm32reg
Startup
arm32reg

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\arm32reg
Impersonate
1

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