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Troj/Dlena-B

Aliases
  • Trojan-Proxy.Win32.Dlena.cq
  • destructive
  • program
  • named
  • W32/Trojan.AMZL
  • Win32/TrojanProxy.Dlena
  • Generic.dx
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 15 July 2007 07:21:08 (GMT)
Detected by All Sophos products
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Action

More Information

Troj/Dlena-B is a proxy Trojan for the Windows platform.

Troj/Dlena-B attempts to disable certain firewall applications, and includes functionality to access the internet and communicate with a remote server via HTTP.

When the Trojan is installed it creates the file <System>\rpcc.dll. This is actually a copy of the Trojan executable, modified to look like a dll, and is also detected as Troj/Dlena-B.

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

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\rpcc
DllName
<System>\rpcc.dll

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

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

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