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Details
Cernoch.1066
It is not a dangerous memory resident parasitic virus. It hooks INT 12h, 21h, 4Ah and writes itself to the end of .COM files that are opened. On ChangeDir DOS calls it searches for .COM files and also infects them. INT 12h is used for virus "Are you here?" call. On any INT 4Ah call the virus decrypts and displays the message, it then halts the computer:
Wish happy birthday to Cernoch |
