Once, my uncle asked me to check his laptop to fix it. It was working really very weird, most of the time the CPU & Ram was 100% full. There were a lot of unknown processes and notifications. However, the installed antivirus security did not find any threats. I found a deep hidden service program, freaking his antivirus. This program is known as a Rootkit (undetectable malware). I created Cobra Antivirus to remove Rootkits easily. That was in 2007! Now Cobra Internet Security eliminates most types of malicious software. If you think that you have been attacked, just use Cobra Antivirus.