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- 1COMPUTER VIRUS :a small self replicating software that infects a comp. without users permission
Vital Information Resource Under Siege - 2types of computer viruses:boot sector virus:
attacks boot sector. attaches itself to the DOS boot sector on floppy disk or master boot record on hard disk. called boot sector infector or system virus. memory resident type. - 3file virus: attack and modify the executable or program files. load themselves on to the memory and slowly infect other files.macro virus:
programs that affect the built in programming called macros. among the most common viruses. when it infects ur MS Word u will see unwanted words or phrases inserted between the text. - 4email virus: spreads easily thru attachments to an email msg or a downloaded file. replicates itself by automatically mailing copies of itself to all email IDs present in the address book.TROJAN HORSE:
- 5programs that appear to be harmless. can perform malicious functions. claim to perform some useful function but do something different like deleting files or damaging your disk. hide in registries and processes. unloads hidden programs, scripts etc.COMPUTER WORM:
- 6self replicating program that makes copies of itself to other computers on a network. exploit security snags in the operating systems. cause at least some harm to network like consuming bandwidth. morris worm and mydoom.SPYWARE:
- 7—
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- Flashcards on Untitled, created by Janaki Ramesan on 24/03/2019.
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- Janaki Ramesan
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