Roei Sherman
Sr Director, Research at Guerilla Security
Tel-Aviv District, Israel
Summary
👤
Senior🎓
Top SchoolRoei Sherman is a seasoned information security leader with a decade of hands-on experience building and running offensive security teams, now serving as Sr Director of Research at Mitiga. He has a strong track record in penetration testing, red teaming, physical security assessments, incident response and digital forensics, and has led global offensive services at AB InBev and advisory engagements at EY. A pragmatic operator and founder of Guerilla Security, Roei blends leadership with engineering—contributing code to tools like an RDP password-spraying Python utility that improves reliability and targeting. His academic background in criminology and formal training in cyber/electronic operations give him a nuanced edge in threat modeling and attacker tradecraft. Based in Tel Aviv, he is known for turning complex security problems into measurable posture improvements across large, distributed environments.
10 years of coding experience
7 years of employment as a software developer
CWS - CISO Cyber/Electronic Operations and Warfare, CWS - CISO Cyber/Electronic Operations and Warfare at Sela collegeBachelor of Business Administration - BBA Management Information Systems Cyber Security, Bachelor of Business Administration - BBA Management Information Systems Cyber Security at Ono Academic CollegeMaster of Arts - MA Criminology, Master of Arts - MA Criminology at Bar-Ilan University
English, Hebrew
Github Skills (8)
pentesting10
rdp10
pen10
python10
pentest10
subprocess9
error-handling9
argparse9
Programming languages (7)
Github contributions (5)
xFreed0m/RDPassSpray
Jun 2019 - Nov 2021
Python3 tool to perform password spraying using RDP
Role in this project:
Back-end Developer
Back-end DeveloperContributions:3 reviews, 23 commits, 9 PRs in 2 years 6 months
Contributions summary:Roei primarily focused on enhancing the functionality of an RDP password spraying tool. Their contributions included adding support for target lists, modifying the argument parsing, and implementing bug fixes to handle connection issues and password spacing. Furthermore, the user improved the output logging and added a check for RDP availability to prevent errors during the process.
ntlmpythonsprayingrdppassword-spraying
tracelabs/tlosint-live
Aug 2020 - Oct 2021
Trace Labs OSINT Linux Distribution based on Kali.
Contributions:13 reviews, 78 commits, 24 PRs in 1 year 2 months
osint-kaliisolinux-distributionsecuritylinux
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