Malware or Malicious Software

1
Malware or Malicious Software

• Trojan Horses
• Performs useful tasks and hides in an attack
  package erasing files, changing data, and passing
  data to other unauthorized users. Ex Logic Bomb
• Worm
• They produced themselves to consume the bandwidth
  of network.
• Viruses- software program capable of reproducing
  itself and usually capable of causing great harm
  to files or other programs.

2
Consequences

• Computer crime
• Identity theft- get sensitive information by
  using a malicious software.
• Spoofing- to steal password. Usually to collect
  personal information. Ex card numbers or
  drivers license number.

3
Consequences

• Computer hacking
• Cracking- criminal hacking. Electronic
  trespassers enter corporate and government
  computers using stolen passwords and security
  holes in operating system software.
• Zombie- a computer that is taken over by a
  Malicious hacker without the knowledge of the
  computer owner. Usually to hide their undercover
  attack.
• Denial of Service Attack (DoS)- a type of attack
  on a network that is designed to bring a network
  to its knees by flooding in with useless traffic.
  Usually done by Zombies.

4
Defenses

• Firewalls- to keep their internal networks secure
  while enabling communication with the rest of the
  internet.
• Encryption- software to scramble their
  transmissions. Used to protect transmitted
  information from hackers.
• Cryptography
• Audit-control software- used to monitor and
  record computer transactions as they happen so
  auditors can trace and identify suspicious
  computer activity after the fact.
• Passwords- are the most common tool used to
  restrict access to computer system.