ET MALWARE TA453 Related Activity (POST)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.header;
content:"Content-type|3a 20|application/x-www-form-urlencoded|0d 0a|";
http.uri;
content:"/Api/"; startswith;
http.request_body;
content:"Data="; startswith;
http.header_names;
content:!"Referer";
content:"|0d 0a|Content-type|0d 0a|Content-length|0d 0a|"; fast_pattern;
Raw source ET MALWARE TA453 Related 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 TA453 Related Activity (POST)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.header;
    content:"Content-type|3a 20|application/x-www-form-urlencoded|0d 0a|";
    http.uri;
    content:"/Api/"; startswith;
    http.request_body;
    content:"Data="; startswith;
    http.header_names;
    content:!"Referer";
    content:"|0d 0a|Content-type|0d 0a|Content-length|0d 0a|"; fast_pattern;
    reference:url,research.checkpoint.com/2022/apt35-exploits-log4j-vulnerability-to-distribute-new-modular-powershell-toolkit/;
    classtype:trojan-activity;
    sid:2034889; rev:3;
    metadata:attack_target Client_Endpoint, created_at 2022_01_11, deployment Perimeter, deployment SSLDecrypt, malware_family APT35, malware_family CharmingKitten, malware_family Phosphorus, performance_impact Significant, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_04;
)

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