GPL NETBIOS DCERPC irot little endian bind attempt

Query · suricata

flow:established,to_server;
content:"|05|"; depth:1;
byte_test:1,!&,16,3,relative;
content:"|0B|"; within:1; distance:1;
content:"`|9E E7 B9|R=|CE 11 AA A1 00 00|i|01 29|?"; within:16; distance:29;
flowbits:set,smb.tree.bind.irot;
flowbits:noalert;

Rule dependencies

Feeds into

  • 18 rules read smb.tree.bind.irot · view all
Raw source GPL NETBIOS DCERPC irot little endian bind attempt · 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 135 (
    msg:"GPL NETBIOS DCERPC irot little endian bind attempt";
    flow:established,to_server;
    content:"|05|"; depth:1;
    byte_test:1,!&,16,3,relative;
    content:"|0B|"; within:1; distance:1;
    content:"`|9E E7 B9|R=|CE 11 AA A1 00 00|i|01 29|?"; within:16; distance:29;
    flowbits:set,smb.tree.bind.irot;
    flowbits:noalert;
    classtype:protocol-command-decode;
    sid:2103237; rev:3;
    metadata:created_at 2010_09_23, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)

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