ET ATTACK_RESPONSE Weak Netbios Lanman Auth Challenge Detected

Query · suricata

flow:from_server;
content:"|ff 53 4d 42|";
content:"|00 11 22 33 44 55 66 77 88|";
Raw source ET ATTACK_RESPONSE Weak Netbios Lanman Auth Challenge Detected · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $HOME_NET 139 -> $EXTERNAL_NET any (
    msg:"ET ATTACK_RESPONSE Weak Netbios Lanman Auth Challenge Detected";
    flow:from_server;
    content:"|ff 53 4d 42|";
    content:"|00 11 22 33 44 55 66 77 88|";
    classtype:policy-violation;
    sid:2006417; rev:8;
    metadata:created_at 2010_07_30, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, 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.