Kazaa Delivers More Than Tunes

Forty-five percent of the executable files downloaded through Kazaa, the most popular file-sharing program, contain malicious code like viruses and Trojan horses, according to a new study.

Out of 4,778 files downloaded in one month, Bruce Hughes, director of malicious code research at security firm TruSecure, found that nearly half of them contained various types of nefarious code.

Some code was designed to infect every file in a computer user's Kazaa download directory with a virus. Other code would steal the user's AOL Instant Messenger password or install a program on their computer to allow the attacker to surreptitiously send spam through it or otherwise take over the machine remotely to steal personal data and files on the computer.

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