Piazzolla.874
Description Piazzolla.874
It is a harmless memory resident parasitic virus. It hooks INT 21h and writes itself to the beginning of .COM files (except COMMAND.COM) that are executed. While infecting it creates the file PIAZZOLL.$$$ and writes into this file its body and then the body of the file, then it deletes original COM file and copies the file PIAZZOLL.$$$ into that file, and then deletes the PIAZZOLL.$$$ file. The virus contains the text strings:
Piazzolla
COMMANDCOM
Piazzoll.$$$
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Croatia.1349
Description Croatia.1349
These are a very dangerous memory resident parasitic viruses. They hook INT 21h, 28h and write themselves to the end of .COM files that are executed. When infected files are opened or loaded for debugging, the viruses disinfect them, and infect again when the file is closed. While disinfecting the viruses create the temporary file ("Croatia.1349" - E, "Croatia.1535" - LARGE2.COM), copy the disinfected copy of the source file, and rename that file to the original name.
Depending on the system time and date the viruses decrypt the text string "Croatia" and overwrite the disk sectors with this string ("Croatia.1535" reads from the sectors instead of writing).
Croatia_II.560
Description Croatia_II.560
It is a very dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of COM files that are executed. The virus deletes the CHKLIST.MS file, if it exists. On February 12th it erases the hard drive sectors and displays the message:
Croatia must be free !
(c) 1995 by Inquisitor.
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