ET SMTP Sorbs.net Block Message

Query · suricata

flow:established,from_server;
content:"sorbs.net";
Raw source ET SMTP Sorbs.net Block Message · 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 tcp $EXTERNAL_NET 25 -> $HOME_NET any (
    msg:"ET SMTP Sorbs.net Block Message";
    flow:established,from_server;
    content:"sorbs.net";
    classtype:not-suspicious;
    sid:2012985; rev:2;
    metadata:created_at 2011_06_10, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)

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