Summary
Mytob is a family of IRC bots with email spreading capability.
Net-Worm.Win32.Mytob.bi is a typical variant of this family.
However, F-Secure Anti-virus also had a false alarm by this name
on several different files between 18th - 19th of October 2005.
The false alarm was fixed in database update 2005-10-19_03 that was
published in 09:50 GMT 19th of October 2005.
We apologize for the inconvenience.