Download Acrimony Client - ~upd~
If you are unsure, use the Acrimony Client exclusively on single-player worlds or servers that explicitly permit "utility clients."
First red flag: the download link on their official-looking website led to a shady adfly-style link shortener. After clicking through three pop-ups for fake antivirus software, I finally got a 500MB zip file. No checksum or signature provided. Download Acrimony Client