Terror
Description Terror
It is a harmless memory resident parasitic virus. It hooks INT 21 and writes itself to the end of COM and EXE files that are closed or executed. When the FindFirst DOS function is called, the virus attempts to infect the COMMAND.COM. The virus writes itself to the end of COM and EXE file, writes 11-bytes Jmp-Virus routine to the beginning of COM files. While infecting the COMMAND.COM file the virus writes itself to the middle of the file. The virus contains the text:
Terror
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Grapje.1039
Description Grapje.1039
It's a non memory resident very dangerous virus. It hits the .COM-files at their beginning. The files can be infected incorrectly. These files are not recoverable and hang-up computer while running. This virus types: "GRAPJE!!" and contains the text strings: "*.COM", "*.*".
Gratug.482
Description Gratug.482
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. Depending on the system date it decrypts and displays the string:
GratuQ
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