Elad Shamir
Vice President Of Research & Development at SpecterOps
Texas, United States
Summary
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Rockstar🎓
Top SchoolElad Shamir is a seasoned information security leader and Vice President of Research & Development with eight years of focused experience in offensive security, adversary simulation, and enterprise post-exploitation. He excels at designing and executing red team operations, uncovering subtle protocol- and configuration-level flaws, and translating findings into strategic, operational, and tactical mitigations. Based in Texas, he has progressed through technical and leadership roles at SpecterOps and Semperis and brings a blend of hands-on exploit development and program-level guidance. An active contributor to notable open-source tooling such as GhostPack’s Rubeus—where he enhanced Kerberos S4U and RBCD capabilities—he combines deep protocol knowledge with practical tooling improvements. Colleagues rely on him for rapid identification of viable attack paths and for shaping adversary-centric operational designs that scale across large enterprises.
8 years of coding experience
10 years of employment as a software developer
Bachelor of Science (B.Sc) Information Systems Engineering, Bachelor of Science (B.Sc) Information Systems Engineering at Ben-Gurion University of the Negev
English, Hebrew
Github Skills (6)
netframework10
csharp10
kerberos10
dotnet-core10
security-protocol10
cryptography9
Programming languages (4)
Github contributions (5)
GhostPack/Rubeus
Oct 2018 - Nov 2018
Trying to tame the three-headed dog.
Role in this project:
Security Engineer
Security EngineerContributions:5 commits, 3 PRs in 1 month
Contributions summary:Elad primarily contributed to the implementation and enhancement of Kerberos-related functionalities within the Rubeus project, focusing on features such as Resource-Based Constrained Delegation (RBCD) support and S4U (Service for User) operations. They added new structures and methods related to Kerberos protocol details, and improved S4U2Self and S4U2Proxy processes by providing alternative implementations, and adding output for monitoring the functionality. The user addressed bugs related to single-part sname.
kerberosdog
eladshamir/Rubeus
Oct 2018 - Apr 2023
Trying to tame the three-headed dog.
Contributions:11 pushes, 2 branches in 4 years 6 months
dog
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