alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Successful CargoBay Exfil"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/api/agents"; bsize:11; http.user_agent; content:"zload/0.1"; bsize:9; fast_pattern; http.request_body; content:"identity_public_key"; content:"public_prekey_signature"; distance:0; classtype:trojan-activity; sid:2038578; rev:1; metadata:created_at 2022_08_19, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_08_19;)