alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE SHubv2.0 CnC Heartbeat"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:18; content:"/api/bot/heartbeat"; fast_pattern; http.request_body; content:"|7b 22|bot|5f|id|22|"; content:"build_id"; content:"os_version"; reference:url,securitylabs.datadoghq.com/articles/tech-impersonators-clickfix-and-macos-infostealers; reference:md5,5d3a849baf1da37696e6aefde1e0f15a; classtype:command-and-control; sid:2067676; rev:1; metadata:affected_product Mac_OSX, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_02_13, deployment Perimeter, deployment SSLDecrypt, malware_family SHub, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_02_13; target:src_ip;)