alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE OSX/Shlayer CnC Landing M2"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/hyllkjit/"; startswith; fast_pattern; content:"/?n="; pcre:"/^\/hyllkjit\/[a-f0-9]{8}\/\?n=\d{4,10}$/i"; reference:url,www.carbonblack.com/2019/02/12/tau-threat-intelligence-notification-new-macos-malware-variant-of-shlayer-osx-discovered/; classtype:command-and-control; sid:2026911; rev:4; metadata:affected_product Mac_OSX, created_at 2019_02_14, deployment Perimeter, malware_family Shlayer, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_04_13;)