ET INFO AnyDesk Revoked Code Signing Certificate Observed

Query · suricata

flow:established,to_client;
content:"|30 82|";
content:"|0D BF 15 2D EA F0 B9 81 A8 A9 38 D5 3F 76 9D B8|"; distance:9; within:16; fast_pattern;
content:"|1e 17 0d|211213000000Z|17 0d|250108235959Z0"; distance:123; within:32;
content:"philandro Software GmbH"; distance:75; within:23;
target:dest_ip;
Raw source ET INFO AnyDesk Revoked Code Signing Certificate Observed · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET INFO AnyDesk Revoked Code Signing Certificate Observed";
    flow:established,to_client;
    content:"|30 82|";
    content:"|0D BF 15 2D EA F0 B9 81 A8 A9 38 D5 3F 76 9D B8|"; distance:9; within:16; fast_pattern;
    content:"|1e 17 0d|211213000000Z|17 0d|250108235959Z0"; distance:123; within:32;
    content:"philandro Software GmbH"; distance:75; within:23;
    reference:url,anydesk.com/en/public-statement;
    classtype:misc-activity;
    sid:2050707; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, created_at 2024_02_05, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Informational, updated_at 2024_02_05;
    target:dest_ip;
)

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