alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE Powershell/PowHeartBeat CnC Checkin - HTTPS";
flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/latest/AdobeMessagingClient.js"; fast_pattern;
http.cookie;
content:"s_ecid="; startswith;
http.host;
content:!"client.messaging.adobe.com";
reference:url,www.welivesecurity.com/2022/09/06/worok-big-picture/;
classtype:trojan-activity;
sid:2038830; rev:1;
metadata:attack_target Client_and_Server, created_at 2022_09_13, deployment SSLDecrypt, malware_family PowerShell_PowHeartBeat, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_09_14;
)