system
3
Hi,
if he has confidential/patient data on his PC, he should DEFINITELY reinstall from scratch !!! and CHANGE ALL PASSWORDS…
because his PC is insecure/not safe !!!
Sasser brings a backdoor, and it even has an exploit itself which allows hackers to gain FULL CONTROL over the machine…!
to be able to backup the data & settings, he could:
- disconnect from network
- clean out Sasser & co. with avast’s Cleaner (OFFLINE)
- enable XP’s built-in firewall (OFFLINE)
optional then:
- go online, update windows, download/install AV/avast, Firewall etc etc…

Afterwards:
- backup and then format & reinstall according to “VirusRemoval” below
