HardBit 4.0 Ransomware Actors Attack Open RDP and SMB Services to Persist Access

**HardBit 4.0 ransomware** is an evolved, encryption-focused strain delivered via a Neshta file-infecting dropper that enables initial access through RDP/SMB brute-force, harvests credentials for lateral movement, achieves persistence via registry modifications, disables Windows Defender features, employs ConfuserEx-based obfuscation, and uses a runtime passphrase to hinder sandbox analysis; operators currently appear to focus on encryption-only extortion rather than public data leaks, and mitigations include monitoring RDP/SMB, enforcing strong credential management, and maintaining offline backups.