Originally Posted by Trippen Out
now ya understand why i didnt post it as a news story. and again why i question what the criteria was for the top 10 selection.
i miss the days of the "harmless" computer infections.. i think the cookie monster virus should be number 1.
Nastiest Virus VIRUT hands down
Virut, a polymorphic file infector with IRCBot functionality which infects .exe, .scr files, and opens a back door that compromises your computer. Using this backdoor, a remote attacker can access and instruct the infected computer to download and execute more malicious files.
When Virut creates infected files, it also creates non-functional files that are corrupted beyond repair and in some instances can disable Windows File Protection. In many cases the infected files cannot be disinfected properly by your anti-virus. When disinfection is attempted, the files become corrupted and the system may become irreparable. The longer virut remains on a computer, the more critical system files will become infected and corrupt so the degree of damage can vary.
More info about it HERE