The darkglitch package on PyPI contains malicious code that establishes a remote-access agent connecting to a hardcoded signaling server. This agent allows execution of arbitrary shell commands by any party that knows the hardcoded room ID, enabling remote command execution and file transfer capabilities. The package also installs a persistent startup script on Windows systems to maintain access across reboots. The malware is explicitly framed with naming and connection details referencing 'malware signal'.