ET EXPLOIT Possible ETERNALROMANCE MS17-010

Query · suricata

flow:from_server,established;
content:"|FF|SMB|25 05 00 00 80|"; offset:4; depth:9;
content:"LSbfLScnLSepLSlfLSmf"; distance:0; fast_pattern;
content:"LSrfLSsrLSscLSblLSss"; within:20;
content:"LSshLStrLStcLSopLScd"; within:20;
flowbits:set,ETPRO.ETERNALROMANCE;

Rule dependencies

Feeds into

  • 1 rule read ETPRO.ETERNALROMANCE · view all
Raw source ET EXPLOIT Possible ETERNALROMANCE MS17-010 · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert smb $HOME_NET any -> any any (
    msg:"ET EXPLOIT Possible ETERNALROMANCE MS17-010";
    flow:from_server,established;
    content:"|FF|SMB|25 05 00 00 80|"; offset:4; depth:9;
    content:"LSbfLScnLSepLSlfLSmf"; distance:0; fast_pattern;
    content:"LSrfLSsrLSscLSblLSss"; within:20;
    content:"LSshLStrLStcLSopLScd"; within:20;
    flowbits:set,ETPRO.ETERNALROMANCE;
    classtype:trojan-activity;
    sid:2024208; rev:1;
    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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