Certified Ethical Hacker (CEH): Denial of Service and Session Hijacking

Network and information security professionals


Expected Duration
60 minutes

Denial-of-service attacks reduce, restrict or prevent legitimate use of a computer’s resources. Session hijacking is an attack where an attacker takes over a valid computer session between two computers. In this course, we look at denial of service and session hijacking attacks, the associated tools and techniques used, and mitigation strategies. An ethical hacker is a person who attacks an organizations security on behalf of its owners in order to discover vulnerabilities. Instead of taking advantage of these vulnerabilities, the ethical hacker reports them to the organization who can then put in place the appropriate countermeasures to protect themselves against malicious hackers. This course is the ninth in a series of courses which can used in preparation for the Certified Ethical Hacker 312-50 exam. The course has been developed in partnership with EC-Council and is based on their Ethical Hacking and Countermeasures course materials and labs.


Denial of Service

  • identify permanent denial-of-service attacks
  • identify hardware botnet tools
  • identify which type of filtering defends against botnets and DDoS

Session Hijacking

  • match the type of session hijacking attack to its characteristics
  • identify application-level hijacking attacks
  • identify true statements about IPSec
  • identify the characteristics of and countermeasures to denial-of-service and session hijacking attacks





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