Kot.a
Description Kot.a
This is a dangerous memory resident boot virus. It hooks INT 13h, and writes itself to the BOOT sectors of floppy disks and to the MBR sector of the hard drive. On the 15th day of each month, the virus stops booting in a computer. The virus contains the text string:
Kot
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MDS.331
Description MDS.331
It is a harmless memory resident parasitic virus. It hooks INT 21h and writes itself to the end of COM files that are executed. It contains the text string:
MDS93
Mecdon.1470
Description Mecdon.1470
This is a relatively harmless non-memory resident encrypted parasitic virus. It searches for EXE files in the current drive subdirectory tree, then writes itself to the end of the file. On Tuesdays, the virus displays the following message:
+---- Virus Warning : ----+
| I HATE mans who CAN`T do |
| anyfing USEFUL MallCDON`T |
| LET to do it for OTHERS. |
+--------------------------+
|