GPL NETBIOS SMB-DS nddeapi andx create tree attempt

Query · suricata

flow:established,to_server;
flowbits:isset,smb.tree.connect.ipc;
content:"|00|"; depth:1;
content:"|FF|SMB"; within:4; distance:3;
pcre:"/^(\x75|\x2d|\x2f|\x73|\x2e|\x24|\x74)/sR";
byte_test:1,!&,128,6,relative;
content:"|A2|"; depth:1; offset:39;
byte_jump:2,0,little,relative;
content:"|5C|nddeapi|00|"; within:9; distance:51; nocase;
flowbits:set,smb.tree.create.nddeapi;

Rule dependencies

⚠ Higher-order rule. It fires on other rules' alerts, not on raw events, so it cannot fire on its own. Deploy the rules it depends on too.

Depends on

Feeds into

  • 8 rules read smb.tree.create.nddeapi · view all
Raw source GPL NETBIOS SMB-DS nddeapi andx create tree 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 445 (
    msg:"GPL NETBIOS SMB-DS nddeapi andx create tree attempt";
    flow:established,to_server;
    flowbits:isset,smb.tree.connect.ipc;
    content:"|00|"; depth:1;
    content:"|FF|SMB"; within:4; distance:3;
    pcre:"/^(\x75|\x2d|\x2f|\x73|\x2e|\x24|\x74)/sR";
    byte_test:1,!&,128,6,relative;
    content:"|A2|"; depth:1; offset:39;
    byte_jump:2,0,little,relative;
    content:"|5C|nddeapi|00|"; within:9; distance:51; nocase;
    flowbits:set,smb.tree.create.nddeapi;
    reference:bugtraq,11372;
    reference:cve,2004-0206;
    classtype:protocol-command-decode;
    sid:2102958; rev:4;
    metadata:created_at 2010_09_23, cve CVE_2004_0206, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)

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