ET JA3 Hash - Possible Rclone Client Activity

Query · suricata

flow:established,to_server;
flowbits:set,ET.rclone;
flowbits:noalert;
ja3.hash;
content:"d0ee3237a14bbd89ca4d2b5356ab20ba";
tls.sni;
content:!"grafana.com";
content:!"grafana.org";
content:!"grafana.net";
content:!"-autoscaling.googleapis.com";

Rule dependencies

Feeds into

Raw source ET JA3 Hash - Possible Rclone Client Activity · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tls $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET JA3 Hash - Possible Rclone Client Activity";
    flow:established,to_server;
    flowbits:set,ET.rclone;
    flowbits:noalert;
    ja3.hash;
    content:"d0ee3237a14bbd89ca4d2b5356ab20ba";
    tls.sni;
    content:!"grafana.com";
    content:!"grafana.org";
    content:!"grafana.net";
    content:!"-autoscaling.googleapis.com";
    reference:url,twitter.com/NCCGroupInfosec/status/1398137873954652163;
    classtype:bad-unknown;
    sid:2033047; rev:3;
    metadata:created_at 2021_05_28, confidence Low, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_06_06, reviewed_at 2024_02_09;
)

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