alert tcp-pkt $EXTERNAL_NET 1024: -> $HOME_NET any (msg:"ET HUNTING Whoami Command Inbound On High Port"; flow:established,to_client; content:"whoami"; depth:8; fast_pattern; threshold:type limit, seconds 300, count 1, track by_src; reference:md5,e0a0e407d425a31b13563bfd09132754; classtype:misc-activity; sid:2044770; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Linux, attack_target Client_Endpoint, created_at 2023_03_27, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_27;)