alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE TA430/Andariel APT HazyLoad Proxy Related Activity (POST)";
flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:!"|2e|";
http.user_agent;
content:"Mozilla/5.0(Windows"; fast_pattern; startswith;
http.content_type;
content:"multipart/form-data|3b 20|boundary="; startswith;
http.header_names;
content:!"Referer";
reference:md5,996169a3740c5eae070630222076d0e8;
classtype:trojan-activity;
sid:2049685; rev:1;
metadata:attack_target Client_Endpoint, created_at 2023_12_13, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_13;
target:src_ip;
)