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Deepthroat |
1.Summary:
Deepthroat is a Trojan Horse offering the attacker control
of the target.
2.Impact:
Possible theft of data and control of the targeted machine
leading to a compromise of all resources the machine is
connected to. This Trojan also has the ability to delete data,
steal passwords and disable the machine.
3.Detailed Information:
This Trojan affects the following operating systems:
Windows 95
Windows 98
Windows ME
The Trojan changes system registry settings to add the
Deepthroat sever to programs normally started on boot.
4.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.
5.Ease of Attack:
This is Trojan activity, the target machine may already be
compromised. Updated virus definition files are essential in
detecting this Trojan. Once compromised, this Trojan grants the
attacker the ability to almost completely control the target.
6.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\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\
Registry keys added are:
Systemtray
Removal of the files pddt.dat and systray.exe from the Windows
system directory is required.
Ending the process systray.exe is also necessary. A reboot of
the infected machine is recommended. |
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