lsass.exe uses large amount of CPU.

[Purtech]

I have checked for a virus - there is none.

What else could be causing this?

Thanks.

 

[DandyDon]

I believe you are infected with the 'Sasser' worm. Google 'isass.exe' to
verify.

 

[Guest]

Hi.... Im with the same problem.....Ive already check for virus and install
all updates from Microsoft Update.....but it didnt works.......My problem is
only when i try to conect Windows Live Messenger.....it takes a lot of time
to get online.....meanwhile lsass uses all CPU (100%).........finally when
messenger is online all resources works fine......what it could be?
Thanks a lot