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  4. Ontario.1024

Ontario.1024

ALIAS:SBC
ORIGIN:Canada
SIZE:1024
TYPE:Resident COM/EXE-files
REPAIR:Yes

Summary

Ontario is a polymorphic, semi-stealth virus. It stays resident in memory and infectes all executed COM and EXE files. COMMAND.COM is infected by inserting the virus code to an unused part of the file.

Ontario will cause vague printer problems.

Two variants, 512 and 1024 bytes in size, are known.