GEN:SID 1:153
Message BACKDOOR DonaldDick 1.53 Traffic
Summary Donald Dick is a Trojan Horse allowing the attacker to access various
resources on the victim host. This event is generated when the attackers
client connects to the Trojan server.
Impact Possible theft of data and control of the targeted machine leading to a
compromise of all resources the machine is connected to.
Detailed Information This Trojan affects the following operating systems:

    Windows 95
    Windows 98
    Windows NT

The Trojan changes system registry settings to add the Donald Dick
server to programs normally started on boot. Due to the nature of this
Trojan it is unlikely that the attacker's client IP address has been
spoofed.

The default name of the server application is vmldir.vxd.
Affected Systems  
Attack Scenarios This Trojan may be delivered to the target in a number of ways. This
event is indicative of an existing infection being activated. Initial
compromise can be in the form of a Win32 installation program that may
use the extension ".jpg" or ".bmp" when delivered via e-mail for
example.
Ease of Attack This is Trojan activity, the target machine may already be compromised.
Updated virus definition files are essential in detecting this Trojan.
Corrective Action Edit the system registry to remove the extra keys or restore a
previously known good copy of the registry.

Affected registry keys are:

HKEY_LOCAL_MACHINE\system\CurrentControlSet\Services\VxD\

Registry keys added:

    VMLDR

This contains the key StaticVxD = "vmldir.vxd"

Delete the registry key VMLDR.

Delete the Troajn application vmldir.vxd.

A reboot of the infected machine is needed.
Additional References Hackfix
http://www.hackfix.org/miscfix/dd.shtml
Rule References mcafee: 98575