From 2-spyware.com
Dis ransomware is a computer infection that encrypts all personal data, renames it, and generates ransom notes to demand money for decryption. If your original filenames are appended with id-(user ID).[decrypt@disroot.org].dis extension that means your computer is infected. So if your files were affected by this virus, each of them would have this or a similar look:
picture.jpg.id-C482E416.[decrypt@disroot.org].dis