Recently, many anti-scam websites have been under denial-of-service (DDoS) attack by the scammers. Accept it or not, they're while using not-so-protected computers to perform DDoS invade. The innocent people unknowingly help this irresponsible individuals perform forum. This computer is called 'zombies' along with the zombies computer are computers infected by virus or trojan and used your scammers carry out the DDoS attack. avast technical support