ET HUNTING GoogleSheets API V4 Activity (Fetch Single Cell with A1 Notation)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/v4/spreadsheets/"; startswith; fast_pattern;
content:"/values/"; distance:0;
content:"!"; distance:0;
pcre:"/^([A-Z][0-9]):([A-Z][0-9])$/UR";
http.host; bsize:21;
content:"sheets.googleapis.com";
Raw source ET HUNTING GoogleSheets API V4 Activity (Fetch Single Cell with A1 Notation) · Suricata
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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 -> $EXTERNAL_NET any (
    msg:"ET HUNTING GoogleSheets API V4 Activity (Fetch Single Cell with A1 Notation)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/v4/spreadsheets/"; startswith; fast_pattern;
    content:"/values/"; distance:0;
    content:"!"; distance:0;
    pcre:"/^([A-Z][0-9]):([A-Z][0-9])$/UR";
    http.host; bsize:21;
    content:"sheets.googleapis.com";
    reference:url,developers.google.com/sheets/api/guides/concepts;
    classtype:bad-unknown;
    sid:2063450; rev:2;
    metadata:attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_08_16, deployment Perimeter, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_07_14, former_sid 2857963;
)

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