Sophos

Troj/Bdoor-CPK

Aliases
  • BackDoor-CPK
  • trojan
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Drops more malware
  • Installs itself in the registry
Protection available since 30 March 2005 21:32:56 (GMT)
Detected by All Sophos products
  • Endpoint Security and Control 9.0
  • Small business solutions 4.0

Action

More Information

Troj/Bdoor-CPK is a backdoor Trojan.

When run, Troj/Bdoor-CPK will drop a DLL with an extension of DAT. The DLL file is also detected as Troj/Bdoor-CPK.

In order to run automatically each time Internet Explorer is started, Troj/Bdoor-CPK sets the following registry entries:

HKCR\CLSID\{1C044AAD-7955-4cbd-8175-501A165C4E5D}\InprocServer32
(default)
<path to Trojan DLL>

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1C044AAD-7955-4cbd-8175-501A165C4E5D}

In order to run automatically each time the computer starts or shuts down, Troj/Bdoor-CPK will set the following registry entries:

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\<Trojan filename>
Asynchronous
1

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\<Trojan filename>
DllName
<path to Trojan DLL>

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\<Trojan filename>
Logon
MachineLogon

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\<Trojan filename>
Logoff
MachineLogoff

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