So I have Avira installed in my other PC. It detected a Malware, and proceeded with the usual, scan, detect, quarantine. I thought it took care of it but the Malware actually took care of Avira! Now my PC is infected with "Smart Fortress 2012" (the name of the Malware). Thankfully removing it was a Google away (it turns out I need Malwarebytes to get rid of it). Now I am thinking do I really need a bunch of tools (like anti-spyware, anti-malware, anti-virus, etc) to stay protected.
How come Malware was detected yet it took over the system? Isn't anti-virus enough or Avira just "sucks"?