Caleb Stewart

• Technical expert performing static and dynamic binary analysis of malicious payloads.
• Research and development of new features for Huntress platform to extend detection and response capabilities.
• Testing partner software to identify, disclose and remediate potential vulnerabilities.

• Led the research and development of capabilities and tools supporting DoD missions in cyberspace.
• Developed and deployed software and hardware load-out for deployable incident response teams.
• Developed incident response scenarios to provide analyst training and improve mission effectiveness.
• Qualified Mission Commander and Host Analyst.

• First responder for numerous network security incidents threatening National Critical Infrastructure.
• Developed SOP and training requirements for incoming personnel.
• Procured, configured and deployed state-of-the-art incident response hardware platform.

• Operation and Maintenance of all network defense infrastructure including Intrusion Prevention and Detection Systems, Data-Loss Prevention, Web Content Filter, and Firewalls.
• Battle Watch Captain supervising security and operational control over all IT systems across the Coast Guard.

• Responsible for combat and communications equipment and operational planning.
• Assistant Command Security Officer — managed physical, information and operational security programs for entire crew.

• Applied systems-programming expertise to reverse engineer unknown software and catalog all code-paths for further analysis.
• Performed static and dynamic analysis on malware to identify and report all observed activity.

Disclosed and assisted in remediation of the following CVE IDs: CVE-2021-42258, CVE-2021-42344, CVE-2021-42345, CVE-2021-42346, CVE-2021-42571, CVE-2021-42572, CVE-2021-42573, CVE-2021-42741, CVE-2021-42742.

Full-featured agentless C2 platform built on top of a basic shell providing stable interactive sessions as well as an extensive pluggable API for automated enumeration, persistence, privilege escalation, and report generation.

Automated Capture the Flag (CTF) problem solver. Implements a multi-threaded problem identification and solution framework capable of automatically solving cyber security challenges from a variety of categories.

Designed and implemented scalable automated event infrastructure utilizing Kubernetes on Google Cloud Platform supporting over 5000 simultaneous players with personally assigned challenge machines. Held events for multiple worldwide conferences and companies including HackerOne, BSidesBoston and GrimmCon.

Demonstrated expertise in low-level software and hardware programming. Designed and implemented POSIX-like kernel for the x86 family of processors. Full multitasking support. Custom device drivers for common hardware as well as implementations of common userland utilities.