Hello, and welcome to MalwareTips.
I've a few questions about you, are you able to answer? I'll be gladly assist you!
- Why did you use the forum link as your title? It's kinda weird. Are you infected currently?
- What was your last known infected? What AV and practices you were using at that time?
- Why do you think there is a "best" antivirus? In my humble opinion, I do not think that there is any 'best' antivirus. There is no antivirus made by Jesus Himself and given by Him to us. After all, no team of mortals can track down every piece of bad code. I love ESET, because it fits my needs. I use it with multiple tools, and my profession is related to computers, so there's little to no chance I'll be infected while using ESET, so that is the best antivirus for me. Then again, everybody's different needs cannot be fulfilled by a single vendor.