GPL SMTP vrfy root

Query · suricata

flow:to_server,established;
content:"vrfy"; nocase;
content:"root"; distance:1; nocase;
pcre:"/^vrfy\s+root/smi";
Raw source GPL SMTP vrfy root · 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 -> $SMTP_SERVERS 25 (
    msg:"GPL SMTP vrfy root";
    flow:to_server,established;
    content:"vrfy"; nocase;
    content:"root"; distance:1; nocase;
    pcre:"/^vrfy\s+root/smi";
    classtype:attempted-recon;
    sid:2101446; rev:7;
    metadata:created_at 2010_09_23, signature_severity Unknown, updated_at 2019_07_26;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.