Tiny family
Description Tiny family
These are memory resident parasitic viruses. They copy themselves to DOS data area at the address 0000:0600 or 0000:0500 depending on the virus version, hook INT 21h and write themselves to the end of COM files that are executed or loaded as overlays.
When the AV.EXE or SCAN.* file is executed, "Tiny.330" deletes them and displays:
This scan program can't find me
I'm a GHOST in your machine!!
"Tiny.340" writes itself into the zero-bytes area in the COM files. The file length does not grow.
"Tiny.Fred" contains the string "Fred". This virus infects .EXE files as well as .COM, as a result these files are corrupted and halt computer on execution. Sometimes this virus formats the disk sectors.
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MegaDevil.665
Description MegaDevil.665
It is a dangerous memory resident parasitic virus. It hooks INT 9, 21h and writes itself to the end of COM files that are executed. It copies its TSR copy to the memory at the fixed address 9000:0000 and may halt the computer because of that. On April 23th it decrypts and displays the message:
Key Killer, (c) 1995 by Mega Devil in AZORES!!! - Portugal.
MegaF.1105
Description MegaF.1105
It is a very dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of EXE files that are accessed. The virus also checks the system country code. If it is not UK, USA, Italy or Slavic/Latin, the virus also hooks INT 13h and corrupts data on disk: writes data on Read calls, and reads data on Write calls. Depending on its internal counter the virus then displays the message:
MegaFuck to CopyRight law.MegaFuck to MicroSoft.(V)'94 SS
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