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TL;DR a certificate for part of the Cobalt Strike update infrastructure changed. Download the 20200511 distribution package to avoid certificate verification errors. If you recently

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Cobalt Strike joins Core Impact at HelpSystems, LLC (now Fortra)

I founded Strategic Cyber LLC in 2012 to advocate a vision of threat-representative security testing. Over time, Cobalt Strike became the de facto commercial standard for red

Blog

Cobalt Strike 4.0 – Bring Your Own Weaponization

Cobalt Strike 4.0 is now available. This release improves Cobalt Strike’s distributed operations model, revises post-exploitation workflows to drop some historical baggage, and adds “Bring

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Cobalt Strike’s Process Injection: The Details

Cobalt Strike 3.14 finally delivered some of the process injection flexibility I’ve long wanted to see in the product. In this post, I’d like to

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That time a printer tried to get Cobalt Strike

I’m sometimes asked: “Raphael, what does Strategic Cyber LLC do to control Cobalt Strike?” That’s the subject of this blog post. What is Cobalt Strike?

Blog

Cobalt Strike 3.14 – Post-Ex Omakase Shimasu

Cobalt Strike 3.14 is now available. This release benefits the OPSEC of Beacon’s post-exploitation jobs. To take a screenshot, log keystrokes, dump credentials, or scan

Blog

Cobalt Strike Team Server Population Study

From February 4, 2019 to February 15, 2019 Strategic Cyber LLC connected to several live Cobalt Strike team servers to download Beacon payloads, analyze them,

Blog

Cobalt Strike 3.13 – Why do we argue?

Cobalt Strike 3.13 is now available. This release adds a TCP Beacon, process argument spoofing, and extends the Obfuscate and Sleep capability to the SMB

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Cobalt Strike 3.12 – Blink and you’ll miss it

Cobalt Strike 3.12 is now available. This release adds an “obfuscate and sleep” in-memory evasion feature, gives operators [some] control over process injection, and introduces

Blog

Broken Promises and Malleable C2 Profiles

Red Team infrastructure is a detail-heavy subject. Take the case of domain fronting through a CDN like CloudFront. You have to setup the CloudFront distribution, have a valid

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