Threat Encyclopedia

Selected viruses, spyware, and other threats: sorted alphabetically

Phi

Phi belongs to boot viruses. It reserves only 1 kilobyte on the top of RAM. It shows its presence at every disk access - in case that both Numlock and Capslock are off on the keyboard the virus will turn on Numlock and move characters in imaginary window (20, 8 - 60, 19). This is very convenient for people used to “extended keyboard” who have a colleague switching the Numlock off all the time. Besides, with each implemented infection, the virus displays letter of the Greek alphabet “phi”.

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