Logout

Anomaly

JSR:

Definition of "Anomoly" - something that deviates from what is standard, normal, or expected.

So, for example, if a student who always comes to class on time is late one time, that is an anomaly.

You should look at this in comparison to signature based detection and packet-filtering firewalls. The idea is that assuming that certain malware writers have figured out how to trick signature-based detection and firewalls, one strategy for malware detection is to look for something suspicious; i.e. something out of the ordinary; i.e. an anomaly.

 

Avinash:

Prompts:

Neel:

16. How does anomaly-based detection of malware work?

Anomaly Based intrusion detection systems(which are more advanced than Signature based systems) are detection systems that constantly check systems of any 'unusual' or anomalous activity which is not native to normal system operations. The nature of the function is based on rules that 'teaches' the system to recognize normal system activity through(most commonly) artificial intelligence usage of normal system behavior learning. Another method that is used in ABIDS is for the system to follow a strict mathematical model and detect any type of activity which is different from the model.