You will be absolutely NO means be banned from IOI's (the developer) always online DRM Hitman 1 or 2. It won't issue a ban, because the games DO NOT have Easy Anti Cheat, or Vac Secured Anti-Tamper. That being said, I would not Ever use them online, Even if by an off chance something did work online, servers can detect changes, and players have recorders, and if uploaded to steam support you will be issued a Game Ban.
tld: If you use the trainer, you will be fine. the game can run as it is, but DO NOT go into the Coop mode, or the Ghost mode. Everything else is single player even if it says"connecting". I've been using it for 50 hours now, and have not had an issue with their always online servers.
I tried that. But I didn't get anywhere with them.
I bought the game again in a new steam account, and reboot once before i play the game.