Maca.1000
Description Maca.1000
This is a relatively harmless memory resident parasitic virus. It hooks INT 21h, and writes itself to the end of COM and EXE files that are executed. While installing a memory resident, the virus infects the C:COMMAND.COM file. During even months (February, April, etc.) on the 4th, 8th, and 12th, the virus also hooks INT 1Ch and plays a tune. The virus contains the following text strings:
c:command.com
Maca
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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.
Crocodiles.1592
Description Crocodiles.1592
It is a very dangerous memory resident parasitic virus. While executing an infected program the virus searches for the COMSPEC string, and infects the command interpreter (COMMAND.COM). While executing an infected command interpreter the virus hooks INT 21h and then writes itself to the end of COM and EXE files (except SCAN.EXE) that are executed.
Depending on its generation the virus also hooks INT 8 (timer) and manifests itself with some sound effect. The virus also calls some other effects and erases the disk sectors, but that code is corrupted, and the computer halts. The virus contains the text string:
CROCODILES
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