alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE [ANY.RUN] Win32/Lumma Stealer Exfiltration";
flow:established,to_server;
http.method;
content:"POST";
http.request_body;
content:"Content-Disposition|3a 20|form-data|3b 20|name=|22|act|22 0d 0a 0d 0a|send_message|0d 0a|--"; fast_pattern;
content:"Content-Disposition|3a 20|form-data|3b 20|name=|22|hwid|22 0d 0a 0d 0a|";
content:"Content-Disposition|3a 20|form-data|3b 20|name=|22|lid|22 0d 0a 0d 0a|";
content:"Content-Disposition|3a 20|form-data|3b 20|name=|22|file|22 3b|";
threshold:type limit,seconds 30,count 1,track by_dst;
reference:md5,884478741e7046e6d0788b63c09df89f;
reference:url,app.any.run/tasks/409f5138-3853-4910-80d4-3c380b969274;
reference:url,community.emergingthreats.net/t/lumma-stealer-configuration/685/;
classtype:command-and-control;
sid:2048094; rev:1;
metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_09_15, deployment Perimeter, malware_family lumma, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_28, reviewed_at 2023_09_15;
target:src_ip;
)