ELFParser, YARA and PageBuster are some of the most popular tools for security analysts. The free tools are available from GitHub or GitLab and provide added advantages to your day-to-day work. The tools can help security researchers and software developers build secure software with ease of ease and ease of tracking down malware and malware. Mihari is a framework for continuous OSINT-based threat hunting using the power of Shodan, Censys, VirusTotal, SecurityTrails and a dozen other open-source intelligence services.”]
Source: https://www.csoonline.com/article/3058594/19-open-source-github-projects-for-security-pros.html