Paramon.917
Description Paramon.917
It is a very dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of EXE files that are executed. It appends to the file the block of data of the random length before infecting the file, as a result the file length grows by a random value. The virus may corrupt the files while infecting them. The virus contains the text string:
Paramon.Paramon
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Chcc.2662
Description Chcc.2662
It's a not memory resident very dangerous parasitic virus. It searches for .COM- and .EXE-files and writes its body at their ends. If no files are found the virus depending on some causes can corrupt the .COM-, .EXE-, .SYS- and .BAT-files. The infected files contain the words "COMEXESYSBAT" and "ChCC".
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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