Freezer family
Description Freezer family
These are dangerous memory resident parasitic viruses, "Freezer.980" is an encrypted virus. They hook INT 8, 21h and write themselves to the end of COM and EXE files that are executed or opened. Depending on their counters the viruses erase the CMOS. They contain the text strings:
"Freezer.830": I am Freeze
"Freezer.980": I am Freezer. V2.0
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FileHider.1067
Description FileHider.1067
This is memory resident parasitic virus. It hooks INT 21h, and writes itself to the end of COM files that are executed or opened. While installing into the system memory, this virus searches for the original INT 21h address in such complex way that it can halt a computer.
This virus isn't dangerous. Sometimes it displays one of the following messages:
Fucky machine! How about buying an AT?
Good machine you have!
Monochrome is out! Try VGA graphics!
Making day out of night again?
Give me a rest!
Your disk is quite full, isn't it?
FileHider.789
Description FileHider.789
This is memory resident parasitic virus. It hooks INT 21h, and writes itself to the end of COM files that are executed or opened. While installing into the system memory, this virus searches for the original INT 21h address in such complex way that it can halt a computer.
On Friday, after infecting a COM-file, this virus sets an attribute HIDDEN for one of the EXE-files in the current directory.
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