ET MALWARE Win32/VBS Backdoor Sending System Information (POST)

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/VBS Backdoor Sending System Information (POST)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/post/weathermap"; bsize:16; fast_pattern;
    http.user_agent;
    content:"Mozilla/4.0 (compatible|3b 20|Win32|3b 20|WinHttp.WinHttpRequest.5)"; bsize:57;
    http.header_names;
    content:!"Referer";
    http.request_body;
    content:"|7b 22|u|22 3a 22|"; startswith;
    content:"|22 2c 22|com|22 3a 22|"; distance:0;
    content:"|22 2c 22|os|22 3a 22|"; distance:0;
    content:"|22 2c 22|mac|22 3a 5b 22|"; distance:0;
    content:"|22 5d 2c 22|fs|22 3a 5b|";
    reference:md5,f86ccd80bfc8975f90f358aad67b432f;
    reference:url,twitter.com/h2jazi/status/1630983583727747085;
    classtype:trojan-activity;
    sid:2044438; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2023_03_06, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_06;
    target:src_ip;
)