‘Botnet’ refers to a group of computers whose security has been compromised in order to use them as ‘zombies’ to send spam e-mail messages or to attack servers. The way such a group of computers was created is with the help of compromised applications called “bots”. Those bad programs will turn your PC into zombie one that hackers can control at distance with the help of a “bot-herder” command system and a control server. Botnets are one of the more dangerous types of menace which occur in cyberspace, as they can harm whole networks as well as individual computers. Problems like viruses, malware, spyware can also be distributed via those Botnets, besides all the spam emails. They can also be used to perform ‘Denial of Service (DoS)’ and ‘Distributed Denial of Service (DDoS)’ attacks on servers, during which zombie computers are used to overload target servers with requests, causing the server to freeze from excessive information. Here computer repair service you can find a great online service ready to repair any problems your PC may have.
Trojans, viruses, malware are used to infect computers with Botnet’s code. These Trojans and viruses may be delivered to the user in the form of spam emails or they could get downloaded from malicious websites, posing as essential video and audio codecs. Once it has infected your PC, the malicious program will connect itself to its bot-herder server and be ready to do more damage. Like preparing itself to send lots of spam emails, or to start attacking some websites or to spread itself to others PC around the world. The first thing you should be aware is that most of the Botnet’s activities will happen without even you knowing about it. So you should understand what is a Botnet and how to detect it. This site virus removal has good infos about spyware removal, while this one virus removal has everything you should know about virus removal.
If you do notice your PC is slowing down, this might be a sign it is infected with a botnet. Your internet connection will also slow down drastically due to the many connections being maintained by the botnet program. You might notice 2 more things: you have less hard disk space than before and your browser is not working as usually. If your desktop has been changed or your browser’s homepage is not the same one as before or it is closing with no apparent reasons, you might be infected.