Hidden Process

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Hi Pony,

I'm not sure how do you define a process is "hidden". Anyway, following
information might be helpful for your reference:

1) Use Process.GetProcess() to get all running processes on current system.

2) You can iterate in the process list to find your target process (which
you want to kill)

3) A Process have a method named "Kill()" which can be used to kill it
immediately.

Let me know if you need further information.


Sincerely,
Walter Wang ([email protected], remove 'online.')
Microsoft Online Community Support

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Hi Pony,

For such hidden process created by a rootkit
(http://en.wikipedia.org/wiki/Rootkit, http://www.rootkit.com), it will not
be listed by normal process api such as .NET Process class. To understand
why it's not listed, you need to first understand some information how a
process can be hidden from normal tool/API such as task manager.

Win32 Kernel Rootkits can hide running processes from users using
techniques like Kernel Native API Hooking, or by directly unlinking the
process's EPROCESS entry from ActiveProcessLinks. Such techniques are very
effective in hiding processes, and are very difficult to detect with
user-mode tools.

To detect such hidden process, you will also need some kernel-mode driver
or api to do that, such as code from
http://www.security.org.sg/code/kproccheck.html; http://www.rootkit.com is
a good resource on RootKit and various tools to detect rootkit.

Hope this helps.

Regards,
Walter Wang ([email protected], remove 'online.')
Microsoft Online Community Support

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