PC performing very slow
If your computer is very slow, there is a chance that your computer can be hacked via botnet attacks, which spy on what you do and ship your secret identity thieves.According the Prevx (PC) security company based in the United Kingdom – each day people go about their passwords to banking sites and Facebook, along with love notes and other e-mail

Under the current news from The Associated Press, Internet security company Prevx has recently discovered the site, which was used as a tool for storing data from infected computers stolen 160K, and the discovery provides an interesting case study.According different researchers from the UK Security firm Prevx found such Well, websites used as stash house on the data of the 160,000 infected computers before being shut down this Monday
Was found in the case which AP notes “A Southern California 22-year-old could be seen with the registration of domain names
GoDaddy.com change his Yahoo e-mail and password to food online from Pizza Hut. His credit card number, birth date, phone number, address and password are all criminals’ hands, though it is unclear what, if anything, criminals have to do with the information yet, ”

Not only personal computer, but also the government, the computer is the problem, including one in Texas that coughed the web log for one of the government health care providers and others in North Carolina, showing access to the office of human resources.
Determine whether your computer is a member of botnets
So how can you tell if you have a machine within botnets, and what can you do?
Statistical Macs are safe from botnets, although not completely immune to all threats, as we pointed out. But if you have a Windows machine, Prevx suggests you stay on the lookout for an Internet connection, which seems inexplicably slow when you’re online, because it may be that infection with botnets your connection to send or receive data.
Close all the mail accounts and all the running applications on your computer which you can think uses the internet connectivity and bandwidth now press ctrl+alt+del >>> in task manager choose the networking if it is showing more than small percentage of usage then it is very possible that your computer is been under botnet attack.
Use the following free systems for clearing some of these applcaitions these are free
http://www.trendsecure.com/portal/en-US/tools/security_tools/rubotted
OR run the online security scan from microsoft
http://www.microsoft.com/protect/products/computer/safetyscanner.mspx
You can also like to have premiums services from other centres like symantic or others.
The newest variant of conficker, which is called Conficker.E, is supposed to go live May 5th, 2009. Happy Cinco de Mayo! Conficker is probably the most worrisome bot net threat right now.