He found a shadowy forum post from 2018. A user named "H4x0rBoi99" had posted a text file. The link led to a sketchy Google Drive. The filename: plesk_key_gen.zip.exe
If you need a free Plesk license for ≤3 domains, just create a free Plesk account and request the Web Admin Edition key. If you need more domains, pay for a license or use an open-source panel like HestiaCP or CloudPanel. plesk free licence key
Your server’s security will thank you. He found a shadowy forum post from 2018