ChromeAlone – A Browser Based Cobalt Strike Like C2 Tool That Turns Chrome Into a Hacker’s Playground

At DEF CON 33, security researcher Mike Weber of Praetorian Security unveiled ChromeAlone — a Chromium-based browser Command & Control (C2) framework capable of replacing traditional offensive security implants like Cobalt Strike or Meterpreter.

Not long ago, web browsers were little more than wrappers for HTTP requests. Today, they are complex, feature-packed platforms, so sophisticated that they resemble full operating systems. This evolution brings convenience, but also a massive attack surface.

ChromeAlone is an open-source framework that weaponizes this complexity, using built-in Chrome features to replicate the capabilities of a traditional Command & Control (C2) implant, all while slipping past most endpoint detection systems.

What sets ChromeAlone apart is its stealth: it hides entirely within Chromium’s native features, avoiding the obvious malware footprints that Endpoint Detection & Response (EDR) solutions often look for.

ChromeAlone sideloads malicious components into the browser without user interaction, leveraging:

• Native Chrome APIs for persistence.
• WebAssembly ...