ET MALWARE Win32/GrandaMisha Sending System Information (POST)

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/GrandaMisha Sending System Information (POST)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/upload?tags="; startswith; fast_pattern;
    content:"&pass="; distance:0;
    content:"&cookie="; distance:0;
    content:"&cc="; distance:0;
    content:"&hwid="; distance:0;
    content:"&ip="; distance:0;
    http.user_agent;
    content:"ureq/"; startswith;
    http.request_body;
    content:"form-data|3b 20|name=|22|document|22 3b 20|filename=";
    content:"Content-Type|3a 20|application/x-ms-dos-executable";
    reference:md5,256ad62aa30b6dfb7755627698d31156;
    reference:url,twitter.com/benkow_/status/1486700404482134021;
    classtype:trojan-activity;
    sid:2034988; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_01_27, deployment Perimeter, malware_family Win32_GrandaMisha, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_01_27;
)