Hal
Description Hal
It is not a dangerous memory resident boot virus. It hook INT 13 and infects boot sector of floppy disks and the MBR of the hard drive. In some cases it displays the text:
HAL 3001
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Lenin.943
Description Lenin.943
It is not a dangerous nonmemory resident parasitic virus. It searches for EXE files and writes itself to the end of the file. While infecting it does not alter the EXE entry registers, but inserts CALL FAR instruction into file entry point and alters EXE relocation table. Depending on its internal counters it displays the messages on Russian. It also contains the strings:
*.EXE
PATH=
Leningrad.1944
Description Leningrad.1944
These are not dangerous memory resident parasitic viruses. "Leningrad.1499,2000.b" are encrypted ones. They hook INT 1Ch, 21h and write themselves to the end of COM files that are executed. Sometimes they play a tune. "Leningrad.2000" contains the text strings in Russian and the string:
Leningrad Leningrad Leningrad Leningrad Leningrad Leningrad Leningrad
Leningrad Leningrad Leningrad Leningrad Leningrad Leningrad Leningrad
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