ET MALWARE Asylum Ambuscade Related CnC Activity (SendLog)

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Asylum Ambuscade Related CnC Activity (SendLog)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.user_agent;
    content:"AutoHotkey"; bsize:10; fast_pattern;
    http.host;
    pcre:"/^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$/";
    http.content_type;
    content:"application|2f|x|2d|www|2d|Form|2d|urlencoded";
    http.header_names;
    content:"|0d 0a|User-Agent|0d 0a|Content-Type|0d 0a 0d 0a|"; bsize:30;
    http.request_body;
    content:"&log="; startswith;
    reference:url,welivesecurity.com/2023/06/08/asylum-ambuscade-crimeware-or-cyberespionage/;
    reference:url,proofpoint.com/us/blog/threat-insight/asylum-ambuscade-state-actor-uses-compromised-private-ukrainian-military-emails;
    classtype:trojan-activity;
    sid:2046246; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_06_13, deployment Perimeter, performance_impact Moderate, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_06_13;
)