Cobalt Strike HTTPS beacon – Cyber Security News

Wed. Feb 4th, 2026

Illustration showing the Chrysalis backdoor attack chain used by the Lotus Blossom APT, including DLL sideloading, NSIS installer abuse, encrypted C2 communication, and advanced malware tooling.

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The Chrysalis Backdoor: When Espionage Tooling Evolves in Plain Sight

Feb 3, 2026 G.C.Moresi

Rapid7 uncovered a Lotus Blossom espionage campaign delivering the new “Chrysalis” backdoor via a compromised Notepad++ distribution chain. The tool…

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