ChDir.422
Description ChDir.422
These are memory resident dangerous viruses. They hook INT 21h and on calls to ChangeDir (AH=3Bh) DOS function they search for .COM- and .EXE-files and overwrite block of code in the file middle. The infected files are not recoverable.
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Kicsit.592
Description Kicsit.592
It is not a dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of .COM-files that are executed. At midday the virus displays the message:
Ebédszünet! - Pihenj egy kicsit!
The virus also contains the text string:
Hello! I'm living in your PC! - Goodbye.
Kid.256
Description Kid.256
These are not dangerous nonmemory resident parasitic viruses. They search for .COM files and write themselves to the end of the file. They contain the text strings:
(c)1992littleKid!
SNA*.* *.com
"Kid.393" displays "face" letter (ASCII 01). "Kid.434" on November, 11th deletes the host files.
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