PebbleDash is described as a North Korea-linked Hidden Cobra/APT38/Lazarus remote access tool whose FakeTLS mechanism hides command-and-control traffic inside traffic that resembles a normal TLS handshake. The analyzed sample used dynamic library loading and custom encryption for obfuscation, then selected hardcoded popular domains for the TLS server-name field to blend into enterprise network traffic. The protocol implementation checked expected TLS record content types before continuing into encrypted communications with a hardcoded, extractable key. The author reimplemented a Python C2 server able to fake the handshake and decrypt messages, giving defenders concrete insight into PebbleDash network emulation and detection opportunities.