Graham Cluley, a senior technology consultant for Sophos, said Wednesday that the increasing use of broadband Internet connections and a general lack of security awareness have resulted in about one in three spam e-mails being redirected through the computers of unsuspecting users.
Cluley said that if a Remote Access Trojan (RAT), a type of Trojan horse program, is able to get into a PC, an attacker could take full control of that PC, as long as it is connected to the Internet.
There is also a very small chance that PC owners will have any idea their system is being used by a third party, said Cluley, who warned that attackers could remove any traces of their activity so that there would be no obvious record: “It is really just network and Internet bandwidth that is suffering–there is no permanent record left on the PC that you can look up–you wouldn’t see anything if you checked your Outlook ‘Sent Items’ folder,” he said.
More info: [url=http://zdnet.com.com/2100-1105_2-5113080.html]http://zdnet.com.com/2100-1105_2-5113080.html[/url]