ET HUNTING Suspicious FTP 220 Banner on Local Port (-)

Query · suricata

flow:from_server,established;
content:"220-"; depth:4;
Raw source ET HUNTING Suspicious FTP 220 Banner on Local Port (-) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert ftp $HOME_NET [0:20,22:24,26:118,120:138,140:444,446:464,466:586,588:901,903:1432,1434:65535] -> any any (
    msg:"ET HUNTING Suspicious FTP 220 Banner on Local Port (-)";
    flow:from_server,established;
    content:"220-"; depth:4;
    classtype:non-standard-protocol;
    sid:2003055; rev:13;
    metadata:created_at 2010_07_30, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)

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