Chkfat.exe contains an IRC Denial Of Service bot, IRC/SDBot. The file
should be disabled from starting and deleted.

Detection was added in Symantec's Trojan Remover database 3298 in August
28, 2002.

This Trojan was released in several forms and with many executable names.
I'd advise checking the net for removal instructions for the
IRC/SDBot.  Most AV will detect and clean.

Doug

At 9/12/2003 04:21 PM, Ronald Ellstrom wrote:

>The chkfat.exe is a process that runs on my computer and consumes quite a
>bit of memory,also uses up to 99% of my CPU as well as accessing the
>internet. The result is a big slow down of my system. When I end the
>process in the Windows Task Manger nothing seems to be affected. It
>resides in my Windows/System32 folder (Windows XP Home). I even renamed it
>_chkfat.exe but when I restarted my computer there was chkfat.exe as well
>as _chkfat. I have run searches in Google, Microsoft and others to no
>avail. HELP! What is it, do I need it and how do I get rid of it. I have
>Diskeeper software installed, is it maybe associated with it?

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