GPL NETBIOS DCERPC Workstation Service direct service access attempt

Query · suricata

content:"|04 00|"; depth:2;
byte_test:1,&,16,2,relative;
content:"|98 D0 FF|k|12 A1 10|6|98|3F|C3 F8|~4Z"; within:16; distance:22;
Raw source GPL NETBIOS DCERPC Workstation Service direct service access attempt · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert udp $EXTERNAL_NET any -> $HOME_NET 1024: (
    msg:"GPL NETBIOS DCERPC Workstation Service direct service access attempt";
    content:"|04 00|"; depth:2;
    byte_test:1,&,16,2,relative;
    content:"|98 D0 FF|k|12 A1 10|6|98|3F|C3 F8|~4Z"; within:16; distance:22;
    reference:bugtraq,9011;
    reference:cve,2003-0812;
    reference:url,www.microsoft.com/technet/security/bulletin/MS03-049.mspx;
    classtype:misc-attack;
    sid:2102316; rev:7;
    metadata:created_at 2010_09_23, cve CVE_2003_0812, signature_severity Informational, updated_at 2019_07_26;
)

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