Troj/Agent-DW

Aliases	Backdoor.Win32.Agent.dw Generic Backdoor.p
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	December 2004 (3.88)
Protection available since	20 October 2004 07:50:21 (GMT)
Detected by	All Sophos products

Troj/Agent-DW is a Trojan used in DDoS attacks.

The Trojan opens multiple SMTP connections to IP addresses chosen at random within a 24-bit netmask specified by the author.

Troj/Agent-DW copies itself to the file svchost.exe in the Windows system folder then creates the following registry entries:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
WindowsUpdate = "C:\Windows\svchost.exe"

HKCU\Software\Microsoft\Windows\CurrentVersion\Run\
WindowsUpdate = "C:\Windows\svchost.exe"

After installing itself, the Trojan waits for up to five minutes before executing its payload.

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