Viral Rewind: Virus.DOS.Immortal

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. Immortal is a virus for DOS that infects files as they are run and attempts to be stealthy by hiding certain file elements provided the virus is residing in memory.

Payload: Whenever the system is booted on December 22nd of any year when the first infected file is run a message scrolls to the left that reads "I'M IMMORTAL!". It then returns to the DOS prompt and the payload will not activate again until the next system boot. While this variant displays the text with a white font, other variants display it with red text.

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