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Details
Joan.480
It is not a dangerous memory resident parasitic virus. It hooks INT 21h and stays memory resident. On FindFirst FCB calls (DIR command, INT 21h, AH=11h) it searches for SYS files and writes itself to the end of the file. On April 15th it displays the message:
Joan v6.23 by KiKo NoMo
Happy Birthday to you, Joan
KiKo |
