ET MALWARE APT/FamousSparrow Activity (POST)

Query · suricata

flow:established,to_server;
urilen:1;
http.method;
content:"POST";
http.uri;
content:"/";
http.host;
content:"credits.offices-analytics.com"; bsize:29; fast_pattern;
http.header_names;
content:"|0d 0a|User-Agent|0d 0a|Accept-Language|0d 0a|Accept|0d 0a|Host|0d 0a|";
content:!"Referer";
Raw source ET MALWARE APT/FamousSparrow Activity (POST) · 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 APT/FamousSparrow Activity (POST)";
    flow:established,to_server;
    urilen:1;
    http.method;
    content:"POST";
    http.uri;
    content:"/";
    http.host;
    content:"credits.offices-analytics.com"; bsize:29; fast_pattern;
    http.header_names;
    content:"|0d 0a|User-Agent|0d 0a|Accept-Language|0d 0a|Accept|0d 0a|Host|0d 0a|";
    content:!"Referer";
    reference:url,www.welivesecurity.com/2021/09/23/famoussparrow-suspicious-hotel-guest/;
    reference:url,twitter.com/ESETresearch/status/1441013111469879300;
    classtype:trojan-activity;
    sid:2034015; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_09_23, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_09_23;
)

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