Chaos ransomware deploys browser-based msaRAT to evade network detection
Cisco Talos uncovered msaRAT, a Chaos ransomware RAT that hides C2 traffic by routing it through Chrome or Edge using the Chrome DevTools Protocol. Cisco Talos disclosed msaRAT, a Rust-based remote access trojan attributed to the Chaos ransomware group that routes its entire command-and-control channel through the victim’s own Chrome or Edge browser. The malware […]

Cisco Talos disclosed msaRAT, a Rust-based remote access trojan attributed to the Chaos ransomware group that routes its entire command-and-control channel through the victim’s own Chrome or Edge browser.
The malware process itself never makes a network connection. Everything it sends and receives goes through the browser via Chrome DevTools Protocol, the same debugging interface developers use to inspect web pages.
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