New Prinz Eugen ransomware prioritizes recent files for encryption

**Prinz Eugen ransomware** is an active hands-on-keyboard extortion operation that gains initial access via stolen RDP credentials and abuse of legitimate RMM tools (e.g., RemotePC), manually deploys a Go-based payload (servertool.exe), prioritizes encryption of recently modified files, and uses strong cryptography (ChaCha20-Poly1305 with Argon2id/HKDF-SHA256) while leaving no on-disk ransom note; researchers observed multiple victims and provide IOCs and detection guidance.