Cobalt Strike is the industry-standard adversary simulation platform trusted by red teams worldwide for conducting sophisticated security assessments and threat emulation exercises. Founded by Raphael Mudge in 2012, Cobalt Strike pioneered the modern red team command and control framework, enabling security professionals to replicate advanced persistent threat behaviors and strengthen organizational defenses through realistic attack simulations.

What Sets Cobalt Strike Apart?

Research-Driven Innovation

Cobalt Strike maintains an unwavering commitment to cutting-edge offensive security research. Our development roadmap is shaped by continuous investigation into emerging threat actor techniques, defensive technology advancements, and community feedback. This research-first approach ensures that Cobalt Strike operators have access to the latest tactics, techniques, and procedures (TTPs) used by real-world adversaries. We dedicate significant resources to developing novel tradecraft, from advanced process injection methods to innovative sleep mask obfuscation, enabling red teams to stay ahead of evolving defensive measures.

Unparalleled Flexibility and Customization

The Malleable C2 framework—introduced in 2014 and widely emulated since—revolutionized command and control customization. Cobalt Strike empowers operators to completely transform network indicators, making Beacon communications blend seamlessly with legitimate traffic or mimic specific malware families. This flexibility extends throughout the platform: from customizable payload generation through the Arsenal Kit, to community-contributed capabilities via the Cobalt Strike Community Kit, to extensible post-exploitation through Beacon Object Files (BOFs). Every aspect of Cobalt Strike can be tailored to match the unique requirements of each engagement, whether testing detection capabilities or conducting covert operations.

Team Collaboration Built for Real-World Operations

Cobalt Strike was engineered from the ground up for collaborative red team operations. Multiple operators can connect to a shared team server, coordinate actions through a unified event log, and seamlessly hand off access to compromised systems. This collaborative infrastructure allows junior team members to work alongside senior leads, fostering knowledge transfer while executing complex multi-phase engagements. The platform’s reporting capabilities generate detailed documentation of activities, supporting both blue team training and executive-level communication.

Proven Track Record and Industry Leadership

Over a decade of continuous development has established Cobalt Strike as the go-to adversary simulation tool for many international government agencies, Fortune 500 enterprises, and leading security consulting firms. Our user community—active across platforms including Bloodhound Slack, Red Siege Discord, and Zero Point Security channels—contributes to an ecosystem of shared knowledge, custom tooling, and best practices. Cobalt Strike team members regularly present at premier security conferences including Black Hat, DEF CON, and others, maintaining thought leadership and direct engagement with the security community.

Our Team's Expertise

The Cobalt Strike team brings together world-class offensive security researchers and developers with field experience and proficiency across multiple domains critical to modern adversary simulation and red team operations.

Our research team drives continuous innovation in threat emulation techniques. Team members specialize in developing evasion capabilities, crafting novel tradecraft, and ensuring Cobalt Strike remains at the forefront of offensive security tooling. This includes advancing sleep mask implementations for in-memory evasion, exploring LLVM-based obfuscation through initiatives like the Mutator Kit, and developing new approaches to post-exploitation tradecraft. The research function is dedicated to enabling red teams to apply the latest TTPs and bypass modern defensive technologies.

Our engineering team combines extensive software development expertise with hands-on red teaming experience. This practical knowledge informs product development, ensuring that Cobalt Strike's architecture supports both ease of use and advanced customization. Engineers focus on core product stability, expanding configuration options while simplifying workflows, and building extensibility frameworks that allow operators and the community to enhance Cobalt Strike's capabilities.

Beyond core platform work, team members have contributed their own tools to the Community Kit, including tooling for lateral movement, credential and token manipulation, Kerberos security, process injection, operational security (OPSEC), anti-forensics, and EDR evasion. This reflects the team’s close connection to the practitioner community.

Meet The Authors

Austin Hudson

Austin Hudson

Sr. Security Researcher
Fortra's Cobalt Strike

Meet Austin Hudson
Chris Thorpe

Chris Thorpe

Principal Software Engineer, Cobalt Strike Development
Fortra's Cobalt Strike

Meet Chris Thorpe
Henri Nurmi

Henri Nurmi

Principal Software Engineer
Fortra's Cobalt Strike

Meet Henri Nurmi
Pablo A. Zurro

Pablo A. Zurro

Senior Product Manager
Fortra's Offensive Security

Meet Pablo A. Zurro
Pieter Ceelen

Pieter Ceelen

Product Owner
Fortra's Cobalt Strike, Outflank

Meet Pieter Ceelen
Robert Bearsby

Robert Bearsby

Senior Cybersecurity Researcher
Fortra's Cobalt Strike

Meet Robert Bearsby
Steve Salinas

Steve Salinas

Sr. Cybersecurity Researcher, Development
Fortra's Cobalt Strike

Meet Steve Salinas
William Burgess

William Burgess

Principal Research Lead
Fortra's Cobalt Strike

Meet William Burgess

CoreLabs Research Team

Fortra's Core Security

CoreLabs is the research center of Core Security, dedicated to advancing the state of offensive security research. The team discovers and responsibly discloses vulnerabilities, develops proof-of-concept exploits that become enterprise-grade modules in Core Impact’s certified exploit library, and publishes articles and advisories that contribute to the broader security community’s understanding of emerging threats. CoreLabs also [...]
Meet The CoreLabs Research Team »

Cobalt Strike Team

Fortra's Cobalt Strike

The Cobalt Strike team develops and maintains one of the industry’s most widely adopted adversary simulation platforms, ensuring that red teams can accurately and efficiently emulate the tactics, techniques, and procedures of real-world threat actors. The team is responsible for driving the platform’s continued evolution so it remains operationally relevant, technically advanced, and aligned to [...]
Meet the Cobalt Strike Team »

Raphael Mudge

Founder
Strategic Cyber, LLC

Raphael Mudge is the creator of Cobalt Strike, which he built in 2012 to enable threat-representative security tests. For nearly a decade, he was the driving force behind the product, designing, developing, and maintaining it while building the community around it through blogs, user manuals, and training videos that became foundational resources for red team [...]
Meet Raphael Mudge »

Let's Talk About How Cobalt Strike Can Help

Community Engagement

Cobalt Strike has cultivated one of the most active and knowledgeable user communities in offensive security. Our team maintains a consistent presence on the Bloodhound Slack Aggressor channel, Red Siege Discord, and Zero Point Security channels. We've introduced the Cobalt Strike Community Award to recognize outstanding contributions to our ecosystem, celebrating users who develop custom loaders, Beacon Object Files, and aggressor scripts that enhance capabilities for all operators.

Ongoing Commitment to Excellence

Through continued research and development, Cobalt Strike evolves to meet the changing needs of red teams facing increasingly sophisticated defensive technologies. Our focus remains on ease of use while expanding configuration options, enabling novel tradecraft through new capabilities, and strengthening interoperability with complementary offensive security tools including Core Impact and Outflank Security Tooling.

A Key Part of Fortra

Cobalt Strike is proud to be a part of Fortra's comprehensive cybersecurity portfolio. Fortra simplifies today's complex cybersecurity landscape by bringing complementary products together to solve problems in innovative ways. These integrated, scalable solutions address the fast-changing challenges organizations face in safeguarding their networks. With complete visibility across the attack chain, access to threat intelligence spanning the globe, and flexible solution delivery, Fortra customers can anticipate adversarial behavior and strengthen their defenses in real time.