ET MALWARE Likely Mirai Related Outbound Shell Request

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/bins.sh"; bsize:8; fast_pattern;
http.host;
pcre:"/^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$/";
threshold:type threshold, track by_src, count 5, seconds 60;
Raw source ET MALWARE Likely Mirai Related Outbound Shell Request · 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 -> $EXTERNAL_NET [:1024] (
    msg:"ET MALWARE Likely Mirai Related Outbound Shell Request";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/bins.sh"; bsize:8; fast_pattern;
    http.host;
    pcre:"/^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$/";
    threshold:type threshold, track by_src, count 5, seconds 60;
    reference:md5,66767161f67d5fdf18ab25e292aece88;
    classtype:trojan-activity;
    sid:2036454; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_04_29, deployment Perimeter, malware_family Mirai, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_04_29;
)

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