ET SCAN PRO Search Crawler Probe

Query · suricata

flow:to_server,established;
content:"PASS "; nocase; depth:5;
content:"crawler"; nocase; within:30;
pcre:"/^PASS\s+PRO(-|\s)*search\s+Crawler/smi";
Raw source ET SCAN PRO Search Crawler Probe · 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 21 (
    msg:"ET SCAN PRO Search Crawler Probe";
    flow:to_server,established;
    content:"PASS "; nocase; depth:5;
    content:"crawler"; nocase; within:30;
    pcre:"/^PASS\s+PRO(-|\s)*search\s+Crawler/smi";
    reference:url,sourceforge.net/project/showfiles.php?group_id=149797;
    classtype:not-suspicious;
    sid:2008179; rev:3;
    metadata:created_at 2010_07_30, confidence Medium, signature_severity Informational, updated_at 2019_07_26;
)

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