Marky.478
Description Marky.478
It is not a dangerous nonmemory resident parasitic virus. It searches for .COM files and writes itself to the end of the file. On February, 27th it decrypts and displays the message:
Happy Birthday To Marky!
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Lviv.600
Description Lviv.600
It is a dangerous memory resident encrypted parasitic virus. It hooks INT 21h and writes itself to the end of COM files that are executed. The virus has a bug while installing memory resident - it does not leaves its copy in separated memory block, but in block of free memory. As a result, when any other program occupies this block, the system halts. The virus contains the ID-string:
Lviv
LX.1358
Description LX.1358
This is a very dangerous memory resident parasitic virus. It hooks INT 21h, and writes itself to the end of COM files that are executed, opened or accessed by Get/SetFileAttribute DOS function. On the 13th of any month, the virus writes the following commands to the end of the C:AUTOEXEC.BAT file:
cls
echo Hi! I am LX 1358 Version 1.03
echo Y | format c: >nul
cls
The virus also contain the text string:
SET VIRUS=LX 1358 Version 1.03 (why LX ? - see below)
SET CopyLeft=(c) 1996 Sergey K. & Alex C.
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