Troj/Agent-HD

Aliases	Trojan-Proxy.Win32.Agent.hd
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 2005 (4.00)
Protection available since	6 November 2005 02:52:26 (GMT)
Detected by	All Sophos products

Troj/Agent-HD is a backdoor Trojan which allows a remote intruder to gain access and control over the computer.

Troj/Agent-HD includes functionality to access the internet and communicate with a remote server via HTTP.

When first run Troj/Agent-HD copies itself to <System>\iejava.exe.

The following registry entry is created to run iejava.exe on startup:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
IE Java Update
<System>\iejava.exe

Troj/Agent-HD listens for connections from remote attackers. The Trojan reports the backdoor port to several websites.

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