Earthworm (ee14e483-b5ef-4931-9c2a-72046b6555cc)
Earthworm is an open-source tool. According to its project website, Earthworm is a "simple network tunnel with SOCKS v5 server and port transfer".[Elastic Docs Potential Protocol Tunneling via EarthWorm] According to joint Cybersecurity Advisory AA23-144a (May 2023), Volt Typhoon actors have used Earthworm in their attacks.[U.S. CISA Volt Typhoon May 24 2023]