ET MALWARE Possible Sharik/Smoke Loader 7zip Connectivity Check

Query · suricata

flow:established,to_server;
urilen:13;
http.method;
content:"GET";
http.uri;
content:"/support.html"; fast_pattern;
http.host;
content:"www.7-zip.org";
http.header_names;
content:"|0d 0a|Cache-Control|0d 0a|Connection|0d 0a|Pragma|0d 0a|User-Agent|0d 0a|Host|0d 0a 0d 0a|";
Raw source ET MALWARE Possible Sharik/Smoke Loader 7zip Connectivity Check · Suricata
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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 Possible Sharik/Smoke Loader 7zip Connectivity Check";
    flow:established,to_server;
    urilen:13;
    http.method;
    content:"GET";
    http.uri;
    content:"/support.html"; fast_pattern;
    http.host;
    content:"www.7-zip.org";
    http.header_names;
    content:"|0d 0a|Cache-Control|0d 0a|Connection|0d 0a|Pragma|0d 0a|User-Agent|0d 0a|Host|0d 0a 0d 0a|";
    reference:md5,9bea24aadc1061d39ec15707a1f9b87b;
    classtype:trojan-activity;
    sid:2026805; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_01_14, deployment Perimeter, malware_family Sharik, malware_family SmokeLoader, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_27;
)

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