This book presents a practical approach to Cyber Threat Intelligence operations using Kali Linux as an analysis and investigation platform. Aimed at cybersecurity professionals and students, the content demonstrates how to collect, validate, and correlate indicators of compromise, investigate malicious infrastructure, and transform technical data into usable intelligence for digital defense.
The work explores tools widely used in CTI operations, such as Nmap, Whois, Dig, Dnsrecon and Searchsploit for infrastructure and vulnerability analysis, in addition to traffic analysis and monitoring resources with TShark, Zeek and Suricata. It also covers automation with Bash and Python, data manipulation in JSON, use of SQLite for indicator databases, and integration with intelligence sharing platforms such as MISP, OpenCTI, STIX and TAXII.
You will learn to:
• Investigate domains, IPs, DNS, ASN and threat infrastructure • Collect and analyze indicators of compromise (IoCs) • Correlate campaigns, malware, TTPs and technical evidence • Monitor network traffic and analyze PCAP files • Automate intelligence data collection and analysis • Build structured indicator databases and ingestion pipelines • Produce technical reports for SOC, DFIR and Threat Hunting
At the end, the reader will be able to implement complete Cyber Threat Intelligence routines with Kali Linux, integrating data collection, indicator validation, evidence correlation and intelligence production applied to digital defense.
kali linux, cyber threat intelligence, threat intelligence, cybersecurity, ioc, indicators of compromise, digital investigation, threat hunting, malware analysis, network traffic analysis, pcap, nmap, whois, dig, dnsrecon, searchsploit, tshark, zeek, suricata, misp, opencti, stix, taxii, python automation, bash, sqlite, threat monitoring, incident response, soc, dfir, security intelligence.
Diego Rodrigues
Technical Author and Independent Researcher
ORCID: https://orcid.org/0009-0006-
StudioD21 Smart Tech Content & Intell Systems
Email:studiod21portoalegre@
LinkedIn: linkedin.com/in/diegoexpertai
International technical author (tech writer)with a focus on structured production of applied knowledge. He is the founder of StudioD21 Smart Tech Content & Intell Systems, where he leads the creation of intelligent frameworks and the publication of educational technical books supported by artificial intelligence, such as the Kali Linux Extreme and SMARTBOOKS D21 series, among others.
Holding 46 international certifications issued by institutions such as IBM, Google, Microsoft, AWS, Cisco, META, Ec-Council, Palo Alto, and Boston University, he works in the fields of Artificial Intelligence, Machine Learning, Data Science, Big Data, Blockchain, Connectivity Technologies, Ethical Hacking, and Threat Intelligence.
Since 2003, he has developed over 200 technical projects for brands in Brazil, the USA, and Mexico. In 2024, he established himself as one of the leading authors of technical books of the new generation, with over 180 titles published in six languages. His work is based on his own applied technical writing protocol, TECHWRITE 2.3, focused on scalability, conceptual precision, and practical applicability in professional environments.