It means you’ve probably been sending out a lot of spam, been part of a botnet, had your hard-drives scanned for credit card-like numbers in files, been seeing a lot of popups lately or all of the above.
hold up, i mightve gotten them from downloading keygens. i heard somewhere that norton sees a keygen as a trojan?
Well, many keygens might have trojans in them…
Knoppicilin is a live linux with virus removal
Second vote for booting into linux to remove them. The viruses have admin permissions on your computer, which is why it can be difficult to get them off. Boot into another OS and there is no way they can run while you delete them.