SYMBOLCOMMON_NAMEaka. SYNONYMS
win.chrysalis (Back to overview)

Chrysalis

Actor(s): LOTUS PANDA


According to Rapid7, Chrysalis is a custom, feature-rich backdoor. Its wide array of capabilities indicates it is a sophisticated and permanent tool, not a simple throwaway utility. It uses legitimate binaries to sideload a crafted DLL with a generic name, which makes simple filename-based detection unreliable. It relies on custom API hashing in both the loader and the main module, each with its own resolution logic. This is paired with layered obfuscation and a fairly structured approach to C2 communication.

References
2026-02-03Kaspersky LabsAnton Kargin, Georgy Kucherin
The Notepad++ supply chain attack — unnoticed execution chains and new IoCs
Chrysalis Cobalt Strike
2026-02-02Rapid7Ivan Feigl
The Chrysalis Backdoor: A Deep Dive into Lotus Blossom’s toolkit
Chrysalis

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