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MS-DOS Viruses

A Dive Into the World of MS-DOS Viruses

Ben Cox takes a nostalgic and in-depth look at MS-DOS viruses

Once you have got an infected file on your system and run it, the malware will either actively search or install syscall hooks to programs you run after. It will often do this in a subtle and non visible way to avoid detection. The importance of subtlety is important since to spread this malware need to either be given to another system through media (floppy disk) copy, or uploaded to another distribution point like a BBS.

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