Virus.DOS.Kuku.448, simply known as Kuku, is a parasitic virus on DOS.


When the virus is run, it infects the first uninfected DOS executable by writing itself to the beginning of the file. It ignores files smaller than the virus itself.

Payload Edit

When the user attempts to run the very first infected program, the virus decrypts and overwrites it with the payload code, which would appear a lot of various colorful lines of the text:


Some of the colorful lines would have a flashing effect.

On further execution of the overwritten program will always activate the virus and will not run the host program anymore.


Kuku in action


Virus DOS Kuku 44801:17

Virus DOS Kuku 448

Virus DOS Kuku 448 on Virtual PC



Kuku virus review by danooct1

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