Dangerous worm Fix2001 spreads in the Internet by e-mail and infects computers with Windows operating system (except the NT family). There it modifies several system files and scans incoming and outgoing Internet traffic for e-mail addresses.
Then it distributes itself to these addresses. It also can install a very dangerous virus to the system that erases all data on a hard disk, so a user can lose all personal documents, data, software, etc.
I-Worm.Fix2001 manual removal: