Zhen Ransomware Detection

This YARA rule detects the Zhen ransomware by identifying specific byte patterns associated with its file finding, file encryption, and network scanning functionalities. The rule looks for distinct sequences of instructions that are characteristic of how Zhen ransomware operates, including patterns related to locating files, encrypting them, and scanning the network for additional targets. The rule requires all three sets of patterns (find_files, encrypt_files, and scan_network) to be present within a PE file (indicated by the 'MZ' header) to trigger a detection.