ET MALWARE ELF/Mirai Variant UA Outbound (lessie)

Query · suricata

flow:established,to_server;
http.user_agent;
content:"lessie"; nocase; depth:6;
pcre:"/^lessie(?:\/[0-9]\.0)?$/i";
Raw source ET MALWARE ELF/Mirai Variant UA Outbound (lessie) · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE ELF/Mirai Variant UA Outbound (lessie)";
    flow:established,to_server;
    http.user_agent;
    content:"lessie"; nocase; depth:6;
    pcre:"/^lessie(?:\/[0-9]\.0)?$/i";
    classtype:trojan-activity;
    sid:2027129; rev:2;
    metadata:affected_product Linux, attack_target IoT, created_at 2019_03_27, deployment Perimeter, malware_family Mirai, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_08_28;
)

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