alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE AMOS ClickFix Campaign - Bash Stager M2"; flow:established,to_server; http.method; content:"GET"; http.uri; pcre:"/^(?:[a-zA-Z0-9]{2,40})/"; content:"|3f|force|3d|1"; within:8; endswith; fast_pattern; reference:url,ransom-isac.org/blog/macos-clickfix-amos-campaign; classtype:trojan-activity; sid:2072073; rev:1; metadata:affected_product Mac_OSX, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_09_17, deployment Perimeter, deployment SSLDecrypt, malware_family AMOS_Stealer, confidence High, signature_severity Major, updated_at 2026_09_17, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1105, mitre_technique_name Ingress_Tool_Transfer; target:src_ip;)