ET POLICY SMB NT Create AndX Request For a .sys File - Possible Lateral Movement

Query · suricata

flow:established,to_server;
content:"SMB|A2|"; depth:9;
content:"|2E|sys|00|"; nocase; distance:0;
Raw source ET POLICY SMB NT Create AndX Request For a .sys File - Possible Lateral Movement · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp any any -> $HOME_NET 445 (
    msg:"ET POLICY SMB NT Create AndX Request For a .sys File - Possible Lateral Movement";
    flow:established,to_server;
    content:"SMB|A2|"; depth:9;
    content:"|2E|sys|00|"; nocase; distance:0;
    classtype:bad-unknown;
    sid:2025710; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target SMB_Client, created_at 2018_07_16, deployment Internal, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26, mitre_tactic_id TA0008, mitre_tactic_name Lateral_Movement, mitre_technique_id T1570, mitre_technique_name Lateral_Tool_Transfer;
)

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