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Malicious code презентация
Содержание
- 1. Malicious code
- 2. Objectives: Identify what Malicious code is Know
- 3. A broad category of software threats to
- 4. AKA: Programmed Threats A Computer Program is
- 5. Two categories of Malicious Code
- 6. Parts Of Malicious Software Trap Doors:
- 7. Biological Virus VS. Computer Virus Biological
- 8. Four Phases of a Virus
Objectives: Identify what Malicious code is Know the categories of Malicious code Introduce you to the parts of Malicious software Know similarities between computer virus and biological virus
Слайд 2Objectives:
Identify what Malicious code is
Know the categories of Malicious code
Introduce you
to the parts of Malicious software
Know similarities between computer virus and biological virus
Identify the 4 Phases of a Virus
Briefly review the anatomy of a Virus
Know similarities between computer virus and biological virus
Identify the 4 Phases of a Virus
Briefly review the anatomy of a Virus
Слайд 3A broad category of software threats to your network and systems
Modifies
or destroys data
Steals data
Allows unauthorized access,
Exploits or damages a system
Steals data
Allows unauthorized access,
Exploits or damages a system
What is malicious code?
Слайд 4AKA: Programmed Threats
A Computer Program is designed to achieve a particular
function
Malicious when the designed to cause adverse effects
Слайд 5Two categories of Malicious Code
Independent:
Self contained program that can be
scheduled and ran by the operating system
Needs Host Program:
essential fragments of programs that can not exist independently of some actual application program, utility, or system program
Needs Host Program:
essential fragments of programs that can not exist independently of some actual application program, utility, or system program
Слайд 6Parts Of Malicious Software
Trap Doors: Secret entry
Logic Bombs: code embedded in
a program
Trojan Horses: security breaking program
Trojan Horses: security breaking program
Zombies: takes over another internet- attached computer
Viruses: Infects other programs
Слайд 7Biological Virus VS. Computer Virus
Biological
-DNA/RNA strand- bond to host shell
-Host allows
life
-Replicate by taking over
-Now infects other cells
-Replicate by taking over
-Now infects other cells
Computer
-Instructions stored in host program
-Active when host is executed
-Replicate when host program is executed
Now infects other programs
Слайд 8
Four Phases of a Virus
1. Dormant
Phase
3. Triggering Phase
2. Propagation Phase
4. Execution Phase
3. Triggering Phase
2. Propagation Phase
4. Execution Phase
Слайд 9
Virus Structure has four ports
1- Mark can prevent re-infection attempts
2- Infection Mechanism causes spread to other files
3- Trigger are conditions for delivering payload
4- Payload is the possible damage to infected computer
1- Mark can prevent re-infection attempts
2- Infection Mechanism causes spread to other files
3- Trigger are conditions for delivering payload
4- Payload is the possible damage to infected computer
