alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET JA3 Hash - Suspected Meterpreter Reverse Shell M1 (set)"; flow:established,to_server; flowbits:set,ET.meterpreter.ja3; flowbits:noalert; ja3.hash; content:"8916410db85077a5460817142dcbc8de"; classtype:command-and-control; sid:2028828; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_10_15, deployment Perimeter, malware_family Meterpreter, confidence Low, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_14;)