Gnat.753
Description Gnat.753
It's a not dangerous memory resident parasitic encrypted virus. It hooks INT 1Ch, 21h and writes itself to the end of EXE-files that are executed or loaded as overlays. Sometimes it overturns the screen. It contains the internal text string "GNAT 1.0" also.
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Saturday14
Description Saturday14
This is a very dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files that are executed. The virus writes the 17 bytes of size Jmp-Virus routine to the beginning of COM files. On Saturday, 14th of any month the virus erases some sectors of the C: drive.
Sauron-1.375
Description Sauron-1.375
It is a harmless memory resident parasitic virus. It copies itself into Interrupt Vectors Table, hooks INT 21h and writes itself to the end of COM files that are executed or opened. It contains the text string:
SAURON-1
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