Threat Encyclopedia

Selected viruses, spyware, and other threats: sorted alphabetically

Antiexe

Antiexe is a stealth boot virus that occupies 1 Kb below the top of memory for DOS. When a user attempts to boot from an infected diskette the virus infects MBR of the hard disk and overtakes the INT 13h. The virus uses the interrupt INT D3h instead of the interrupt 13h for its purposes. It attacks boot sectors of diskettes when they are read. If the beginning of the diskette sector contains characters “MZ” – the signature of EXE files, these files may be occasionally damaged.

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