My browser repetitiously launches “by CounterFlix” ads even if the AdBlocker is on. What causes these ads to appear? I’ve run several scans with some free anti-malware programs but nothing seems to work. After running the scan, this piece of malware goes away for a while, but I believe it comes back as soon as I restart my computer. Is there a way to solve this problem? Why can’t security programs remove CounterFlix virus efficiently?