alert http1 $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Atomic MacOS Stealer CnC Exfil (POST)"; flow:established,to_server; urilen:8; http.method; content:"POST"; http.uri; content:"/sendlog"; fast_pattern; http.header_names; bsize:40; content:"|0d 0a|Host|0d 0a|Content-Type|0d 0a|Content-Length|0d 0a 0d 0a|"; http.content_type; bsize:33; content:"application|2f|x|2d|www|2d|form|2d|urlencoded"; http.host; pcre:"/^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$/"; reference:url,twitter.com/x3ph1/status/1703492680951509154; classtype:trojan-activity; sid:2048103; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_09_18, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_03, reviewed_at 2023_09_18;)