Overall Risk Level: 
W32.Fnumbot is a worm that may perform various backdoor functionalities on the compromised computer and send malicious link on the contacts of messenger programs. W32.Fnumbot will propagate through removable drives and modify registry to add its own entry that will hook itself on Windows startup process.
Alias: -
Damage Level: Low
Systems Affected: Windows
Tags: symantec
Any Response?