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Virus.DOS.SkyNet.1448 is a memory resident parasitic virus on DOS. It is named after the two programs from the Terminator movie franchise.

Behavior

The virus hooks INT 21h when it is loaded into memory, and it infects any EXE executable file that is run by writing itself to the end of the file.

After that, it sets a counter and starts slowing down the system by adding dummy loops on any INT 21h call.

Advanced details

The virus occupies 1,664 bytes in memory.

MD5 hash:

46aadc98a403befb9746edff3d6967a2

Payload

When an infected program is run, the virus appends the following message into the runtime of the program by random:

*** Terminator I *** Created by Sky Net in Chung-Li.
Skynet message

The message appended into FIND by Skynet.

After a number of processes, the virus makes a "shutdown" video effect and then slowly types out this message on a red background:

Terminator Message:

Don't be afraid.
I am a very kind virus.
You have do many works today.
So,
I will let your computer slow down.
Have a nice day,
Goodbye.

Press a key to continue. . .

After that it turns the screen to black, but the system is not halted, the user may perform any task, even there is nothing to be displayed on the screen.

Videos

Virus.DOS.SkyNet

Virus.DOS.SkyNet.1448

Virus.DOS

Virus.DOS.Skynet

Skynet virus review by danooct1