alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING Likely Hex Encoded Executable as String - Pipe Separated"; flow:established,to_client; file.data; content:"4D|7c|5A|7c|"; nocase; content:"|7c|50|7c|45|7c|00|7c|00|7c|"; distance:0; content:"|7c|21|7c|54|7c|68|7c|69|7c|73|7c|20|7c|70|7c|72|7c|6f|7c|67|7c|72|7c|61|7c|6d|7c|"; distance:0; nocase; fast_pattern; reference:url,threatmon.io/apt-sidecopy-targeting-indian-government-entities/; classtype:bad-unknown; sid:2044370; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_02_28, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_02_28, mitre_tactic_id TA0005, mitre_tactic_name Defense_Evasion, mitre_technique_id T1027, mitre_technique_name Obfuscated_Files_or_Information; target:dest_ip;)