Malware

Malware

1. Definition

   • Software designed to gain unauthorised access to a computer system
     • To disrupt its functioning
     • Or to collect information
     • Install latest security updates to prevent infection
       • Keep operating system up to date

2. Virus

   • Hidden in / part of a computer program
   • Can replicate itself into other programs or files
     • Which can be passed on
   • Can corrupt and delete data
   • Prevention
     • Anti-virus software

3. Worm

   • Can replicate and send itself in emails
     • Sent to everyone in users address book
   • Allows criminals to take over infected machines

4. Trojans

   • Users think they are downloading genuine software
   • Can delete files
   • Can log key strokes
     • Users personal details at risk

5. Spyware

   • Installed without user knowing
   • Tracks users activity
   • Commonly packaged with other software
   • Can be prevented by firewall and anti-spyware software

6. Adware

   • Displays unwanted adverts
   • Re-directs you to advertising sites
   • e.g pop up ad with x button
     • Clicking button redirects you to other page
   • Prevention
     • Ad block

7. Ransom ware

   • Sends virus to computer and locks screen
   • Demands payment to return access to files

8. Scareware

   • Message pops up alerting user they have a virus
     • Tends to be the virus itself
     • Use this as a pathway to users files