Virus

Virus

1. Trojan

   • problems caused by trojans
     • disables antivirus software
     • destroys firewalls
     • steals personal details
     • pop-ups appearing even if your not using the internet
   • How trojans can infect your computer
     • Downloading a program or game that was pirated, trojan virus is normally attached to it
     • Emails that appear to be off a friend

2. worms

   • Problems caused by worms
     • Denial Of Service attack
     • Slows down or stops a network
     • stops loading webpages and a message mightpop-up
     • replicates itself thousands of times on a infected computer
   • Definition of a computer worm
     • A computer program designed to copy itself and spead to other computers
   • how worms infect a computer
     • it infects other computers by exploiting any loop holes found on a computer system for example they haven't updated thier virus protection software , worms dont need need any input from someone else. and can attack at any time

3. Viruses

   • Problems caused by viruses
     • corrupted data
     • delete files
     • speads itself through person emails and contacts
     • wipe the hard disk
   • how viruses infect a computer
     • clicking pop-ups
     • email attachments
     • visiting suspicious websites
     • downloading software from suspicious websites

4. spyware

   • How spyware can infect a computer
     • come with downloads
     • visiting unsafe or suspicious websites
     • suspicious websites
     • suspicious "free" downloads
   • problems caused by spyware
     • slows down or crashes the computer
     • constant pop-ups
     • can be diverted to another webpage
     • pop-ups
     • slowed down or crashing a computer

5. poly morphing

   • what is it?
     • polymorphing isnt a virus but a code that some viruses use
       • what does it do?
         • Every time a polymorphed virus enters a computer its virus signiture (code) changes, this makes it considerably harder for antivirus software to spot the virus