ET MALWARE Suspected Win32/Hancitor Checkin

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/forum.php"; endswith; fast_pattern;
http.header_names;
content:!"Referer";
content:"|0d 0a|Accept|0d 0a|Content-Type|0d 0a|User-Agent|0d 0a|Host|0d 0a|Content-Length|0d 0a|Cache-Control|0d 0a 0d 0a|";
http.content_type;
content:"application/x-www-form-urlencoded"; bsize:33;
http.request_body;
content:"DATA="; startswith;
Raw source ET MALWARE Suspected Win32/Hancitor Checkin · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Suspected Win32/Hancitor Checkin";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/forum.php"; endswith; fast_pattern;
    http.header_names;
    content:!"Referer";
    content:"|0d 0a|Accept|0d 0a|Content-Type|0d 0a|User-Agent|0d 0a|Host|0d 0a|Content-Length|0d 0a|Cache-Control|0d 0a 0d 0a|";
    http.content_type;
    content:"application/x-www-form-urlencoded"; bsize:33;
    http.request_body;
    content:"DATA="; startswith;
    reference:md5,d90f5bb9e103ea6935e453a8bafe4a66;
    reference:url,twitter.com/james_inthe_box/status/1488521848467959810;
    classtype:trojan-activity;
    sid:2035096; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_02_04, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_02_04;
)

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