lsass.exe

[Guest]

Is the a vital part of Window XP Home or a worm? It runs and hogs my CPU
nearly 100% when I click IE>Tools>Internet Options>Content>Clear Forms>OK.
If I got to Task Manager and try to close it I get a message that it is part
of the operating system and can't be stopped. The only way I can get my CPU
back is to close IE. I have tried running Symantec's Sasser detection tool
and Microsoft's as well. Neither detects a worm on my system. But, the
problem persists. What can I do next?

 

[PoohBear]

Is the a vital part of Window XP Home or a worm? It runs and hogs my CPU

nearly 100% when I click IE>Tools>Internet Options>Content>Clear Forms>OK.
If I got to Task Manager and try to close it I get a message that it is part
of the operating system and can't be stopped. The only way I can get my CPU
back is to close IE. I have tried running Symantec's Sasser detection tool
and Microsoft's as well. Neither detects a worm on my system. But, the
problem persists. What can I do next?

Its a virus, try this:

http://www.bitdefender.com/scan8/ie.html

 

[Guest]

Nothing found. I can do a search and find lsass.exe and LSASS.EX_ in the
System folder. Can I delete these without causing a mess?