I have not used one since 2003 maybe..
YOU are the "Tool"
Learn or get someone qualified to do it for you.
"Tools" may or may not work i know this from testing.
Ever deliberately infected your computer before ?
I just fixed my room-mates PC and i have not had an Anti-Virus program installed since 2005 roughly.
And yeah my machine runs God like.
I also am not the least bit concerned about hackers / malware either.
THEY BETTER be worried about me because i am an evil sick fuck.
In some of my cracking escapades i hammered on a program every day for many months.
Until i shattered their security and then posted the cracks on the web boasting about my exploits.
Point ?
I am BEYOND persistent.. when i decide then i will have my victim!
No matter what it takes or how long..
And anything that runs can be cracked.
You can break through someone's front door with 1 finger if you want to..
1 light tap at a time add's up.
Never fuck with the diabolical madness of a lunatic.