You should take care of the new worm sasser guys
a friend told me that 2 days ago he got infected with a new worm it's called"W32.Sasser.Worm" and it just shown up on 1 may and on 2 may a new modification of that worm called"W32.Sasser.B.Worm" has shown trying to break the new update that microsoft made for it's security bulletin but thank God microsoft has a newer update just today for this modification too so you should go to www.symantec.com and get the fix of the previous worm and go to get the update of security bulletins at
http://www.microsoft.com/technet/Security/default.mspx
Hope everything will be okay
see ya
Dr.Mo