ET MALWARE NSO Group Pegasus Related Data Exfil (POST) M3

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:".php"; endswith;
http.header_names;
content:"|0d 0a|Content-Type|0d 0a|Host|0d 0a|Content-Length|0d 0a|Expect|0d 0a 0d 0a|"; bsize:48; fast_pattern;
http.request_body;
content:"silly=./"; startswith;
content:"&kusr="; distance:0;
Raw source ET MALWARE NSO Group Pegasus Related Data Exfil (POST) M3 · 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 NSO Group Pegasus Related Data Exfil (POST) M3";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".php"; endswith;
    http.header_names;
    content:"|0d 0a|Content-Type|0d 0a|Host|0d 0a|Content-Length|0d 0a|Expect|0d 0a 0d 0a|"; bsize:48; fast_pattern;
    http.request_body;
    content:"silly=./"; startswith;
    content:"&kusr="; distance:0;
    reference:url,www.trendmicro.com/en_us/research/21/h/confucius-uses-pegasus-spyware-related-lures-to-target-pakistani.html;
    reference:md5,0a1c6d9cd67172995d22fa54946662f0;
    classtype:trojan-activity;
    sid:2033778; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_08_24, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_08_24;
)

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