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Effective Threat Investigation for SOC Analysts

Effective Threat Investigation for SOC Analysts

By : Mostafa Yahia
4.8 (21)
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Effective Threat Investigation for SOC Analysts

Effective Threat Investigation for SOC Analysts

4.8 (21)
By: Mostafa Yahia

Overview of this book

Effective threat investigation requires strong technical expertise, analytical skills, and a deep understanding of cyber threats and attacker techniques. It's a crucial skill for SOC analysts, enabling them to analyze different threats and identify security incident origins. This book provides insights into the most common cyber threats and various attacker techniques to help you hone your incident investigation skills. The book begins by explaining phishing and email attack types and how to detect and investigate them, along with Microsoft log types such as Security, System, PowerShell, and their events. Next, you’ll learn how to detect and investigate attackers' techniques and malicious activities within Windows environments. As you make progress, you’ll find out how to analyze the firewalls, flows, and proxy logs, as well as detect and investigate cyber threats using various security solution alerts, including EDR, IPS, and IDS. You’ll also explore popular threat intelligence platforms such as VirusTotal, AbuseIPDB, and X-Force for investigating cyber threats and successfully build your own sandbox environment for effective malware analysis. By the end of this book, you’ll have learned how to analyze popular systems and security appliance logs that exist in any environment and explore various attackers' techniques to detect and investigate them with ease.
Table of Contents (22 chapters)
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1
Part 1: Email Investigation Techniques
4
Part 2: Investigating Windows Threats by Using Event Logs
10
Part 3: Investigating Network Threats by Using Firewall and Proxy Logs
15
Part 4: Investigating Other Threats and Leveraging External Sources to Investigate Cyber Threats

Investigating network flows

The flow, also commonly known as NetFlow, is network session information generated by network devices, such as routers and layer 3 switches, to aid network engineers during network issue troubleshooting. The flows have several names, based on the device vendor – for example, the used protocol for Cisco devices’ flow control is NetFlow (which is the most common and well-known flow protocol), Jupiter devices’ flow protocol is J-Flow, and HP devices’ flow protocol is Netstream.

Regardless of the name of the protocol used to generate the network session information, the generated information includes at least the following details:

  • Timestamps (start and finish)
  • A source IP
  • A destination IP
  • A source port
  • A destination port
  • Transferred bytes

Most SIEM solutions provide an integration capability to receive flows from different network devices. As an SOC analyst, you should take advantage of the network...

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