ET MALWARE Magecart/Skimmer - _try_action Exfil Attempt

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:".png"; endswith;
http.content_type;
content:"application/x-www-form-urlencoded"; startswith;
http.request_body;
content:"cid="; startswith; fast_pattern;
content:"&host=";
Raw source ET MALWARE Magecart/Skimmer - _try_action Exfil Attempt · 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 Magecart/Skimmer - _try_action Exfil Attempt";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".png"; endswith;
    http.content_type;
    content:"application/x-www-form-urlencoded"; startswith;
    http.request_body;
    content:"cid="; startswith; fast_pattern;
    content:"&host=";
    reference:url,lukeleal.com/research/posts/cdn-frontend-skimmer/;
    classtype:trojan-activity;
    sid:2032788; rev:1;
    metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2021_04_20, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, tag CardSkimmer, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_04_20;
)

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