Nafigator.990
Description Nafigator.990
This is a harmless non-memory resident parasitic virus. It searches for COM and EXE files in the current directory and subdirectories of the current disk, then writes itself to the end of the file. On the 30th of each month, the virus displays a message, and waits for any key to be pressed. The virus' message is as follows:
Russia (c) Nafigator
Press key for more infectedall
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Bleah.c
Description Bleah.c
This is a harmless memory resident encrypted boot virus. It infects the MBR of the hard drive and boot sector of floppy disks. While loading from infected disk it decreases the size of system memory (the word at address 0000:0413), copies itself to there, hooks INT 8 (timer), waits for DOS loading process, then restores the size of system memory and hooks INT 13h to infect the disks. As a result, the virus places itself to the block of system memory that is cut, but it does not change the total size of conventional memory.
Blind.549
Description Blind.549
It is a dangerous nonmemory resident parasitic virus. It searches for .COM files (except COMMAND.COM) in the current directory, then in directories that are marked in PATH=, then writes itself to the end of the file. The virus has bugs and in some cases corrupt files while infecting them. The virus contains the text strings:
=Blind Guardian 1995=
PATH=*.COM COMMAND.COM
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