Troj/Agent-ZD

Category	Viruses and Spyware
Type	Trojan
What to do	If you've received an alert for a virus or spyware, then follow the instructions for removing the threat.
Prevalence	low high

Summary


Affected operating systems	Windows
Characteristics	Installs itself in the registry
Included in our products from	February 2006 (4.02)
Protection available since	6 December 2005 06:33:14 (GMT)
Detected by	All Sophos products

Troj/Agent-ZD is a Trojan for the Windows platform.

When Troj/Agent-ZD is installed the following files are created:

<System>\doser.exe
<System>\ssldr32.dll

The file doser.exe is detected as Troj/Agent-PE.

The following registry entries are created to run code exported by ssldr32.dll on startup:

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\ssldr
Impersonate
0

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\ssldr
DLLName
ssldr32.dll

The Trojan allows remote attackers the ability to route internet traffic through the infected computer.

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