ET EXPLOIT Possible ETERNALCHAMPION MS17-010 Sync Request (set)

Query · suricata

flow:to_server,established;
content:"|ff|SMB|25 00 00 00 00 18 03 c0 00 00 00 00 00 00 00 00 00 00 00 00|"; offset:4; depth:24;
content:"|00 00 00 00 ff ff ff ff 00 00|"; distance:17; within:10;
content:"|5c 00 50 00 49 00 50 00 45 00 5c 00 4c 00 41 00 4e 00 4d 00 41 00 4e 00 00 00|"; distance:13; within:26;
content:"|82 00|zb12g12DWrLehig24"; within:19; fast_pattern;
flowbits:set,ET.ETERNALCHAMPIONsync;
flowbits:noalert;

Rule dependencies

Feeds into

  • 1 rule read ET.ETERNALCHAMPIONsync · view all
Raw source ET EXPLOIT Possible ETERNALCHAMPION MS17-010 Sync Request (set) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert smb any any -> $HOME_NET any (
    msg:"ET EXPLOIT Possible ETERNALCHAMPION MS17-010 Sync Request (set)";
    flow:to_server,established;
    content:"|ff|SMB|25 00 00 00 00 18 03 c0 00 00 00 00 00 00 00 00 00 00 00 00|"; offset:4; depth:24;
    content:"|00 00 00 00 ff ff ff ff 00 00|"; distance:17; within:10;
    content:"|5c 00 50 00 49 00 50 00 45 00 5c 00 4c 00 41 00 4e 00 4d 00 41 00 4e 00 00 00|"; distance:13; within:26;
    content:"|82 00|zb12g12DWrLehig24"; within:19; fast_pattern;
    flowbits:set,ET.ETERNALCHAMPIONsync;
    flowbits:noalert;
    classtype:trojan-activity;
    sid:2024212; rev:2;
    metadata:attack_target SMB_Server, created_at 2017_04_17, deployment Internal, confidence Medium, signature_severity Critical, updated_at 2019_07_26;
)

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