[Introduction to Incident Handling and Response] Johnson an incident handler is working on a recent web application attack faced by the organization…

The data preprocessing step performed by Johnson, where he analyzes user activities within a certain

time period to create time-ordered domain sequences for further analysis on sequential patterns, is

known as user-specific sessionization. This process involves aggregating all user activities and

requests into discrete sessions based on the individual user, allowing for a coherent analysis of user

behavior over time. This is critical for identifying patterns that may indicate a watering hole attack,

where attackers compromise a site frequently visited by the target group to distribute malware.

User-specific sessionization helps in isolating and examining sequences of actions taken by users,

making it easier to detect anomalies or patterns indicative of such an attack.

Reference:The ECIH v3 certification materials discuss various data preprocessing techniques used in

the analysis of cyber attacks, including the concept of sessionization to better understand user

behavior and detect threats.