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Researchers at the security firm believe that Farid Essebar was responsible for writing a host of viruses in August.
Essebar, 18, of Morocco, and Atilla Ekici, 21, of Turkey, were arrested Thursday in their respective countries and charged in connection with writing and releasing the Zotob and Mytob worms, according to the FBI.
Zotob, a fast-moving virus, surfaced earlier this month shortly after Microsoft warned of a security vulnerability affecting its Windows Plug-and-Play. The worm, which exploited the Windows flaw, hit several media outlets hard including ABC, CNN, The Associated Press and The New York Times, among others.
It is not unusual for malware authors to leave handles inside their malicious code, sometimes alongside other messages, said Sophos. Researchers at the firm have determined that more than 20 other viruses include the Diablo handle, including Mydoom-BG and many versions of the Mytob worm.