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Description Edit

This is a dangerous memory-resident virus. It hooks INT 8 (timer), and INT 21h and hits COM files by a standard way when they are executed.

The virus contains the text "BackTime". This virus sets the system timer in back direction: when the INT 8 is called the virus decrements the content of timer counter. At a result the programs that uses the timer characteristics of computer (like a BenchMarks) are hang-up.

Appears on these pages

  • BackTime

    Virus.DOS.BackTime or BackTime is a virus that runs on MS-DOS. This is a dangerous...

File history

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current11:50, April 4, 2014Thumbnail for version as of 11:50, April 4, 201400:43480 × 269 (22 KB)Alles Sandro (wall | contribs)created video


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