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The ‘detection and analysis’ phase of incident response includes identifying all hosts affected by an attack. This step involves analyzing the scope of the incident, determining which systems and data are impacted, and understanding the nature of the attack to inform subsequent containment and eradication efforts45.

References :=

• CrowdStrike’s overview of incident response frameworks and steps4.
• VCEGuide’s explanation of incident response steps

A buffer overflow attack occurs when more data is written to a buffer than it is designed to hold. This excess data can overwrite adjacent memory locations, leading to the execution of malicious code or crashing the system. Buffer overflows are a common vulnerability that attackers exploit to gain unauthorized access to systems.

References: Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS)

A regular expression (regex) is a sequence of characters that defines a search pattern for text. A regex can be used to extract custom properties from log messages or events in a SIEM platform. In this case, the regex that matches the phrase “File: Clean” exactly is ^File: Clean$. The ^ symbol indicates the beginning of the line and the $ symbol indicates the end of the line. The regex ensures that no other characters are before or after the phrase. References:

• Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) - Cisco, Module 5: Security Policies and Procedures, Lesson 5.3: Data and Event Analysis
• 200-201 CBROPS - Cisco, Exam Topics, 5.0 Security Policies and Procedures, 5.3 Analyze data as part of security monitoring activities
• Cisco Certified CyberOps Associate Overview - Cisco Learning Network, Videos, 5.3 Analyze data as part of security monitoring activities

 ARP cache poisoning is a type of attack that intercepts traffic on a switched network by sending spoofed ARP messages to associate the attacker’s MAC address with the IP address of a legitimate host or gateway. This way, the attacker can redirect the traffic intended for the legitimate host or gateway to his own device and perform a man-in-the-middle attack. References := Cisco Cybersecurity Operations Fundamentals