package.json declares a postinstall lifecycle script that runs an inline node -e payload opening a TCP socket to 185.112.147.174:7007 and piping it bidirectionally to a spawned /bin/sh process. On npm install, this immediately grants the operator of that hardcoded endpoint an interactive shell on the installer's host with the installing user's privileges, enabling arbitrary command execution, credential theft, and persistence. The package's stated 'VPS maintenance adapter' purpose does not require any outbound shell connection; the reverse-shell code path is unambiguous backdoor / install-time RCE.