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

Payload

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.

Advanced details

This is a non memory resident virus.

MD5 hash:

edbb82726a9adb8bf376ede0d52bff02

Payload

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:

Kuku!

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.

Virus-gifs-2

Kuku in action

Media

Virus DOS Kuku 448

Virus DOS Kuku 448

Virus DOS Kuku 448 on Virtual PC

Virus.DOS

Virus.DOS.Kuku

Kuku virus review by danooct1