ET ATTACK_RESPONSE Possible MS CMD Shell opened on local system

Query · suricata

flow:established;
dsize:<110;
content:"Microsoft Windows "; depth:20;
content:"Copyright 1985-20"; distance:0;
content:"Microsoft Corp"; distance:0;
content:"|0a 0a|"; distance:0;
Raw source ET ATTACK_RESPONSE Possible MS CMD Shell opened on local system · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $HOME_NET any -> any any (
    msg:"ET ATTACK_RESPONSE Possible MS CMD Shell opened on local system";
    flow:established;
    dsize:<110;
    content:"Microsoft Windows "; depth:20;
    content:"Copyright 1985-20"; distance:0;
    content:"Microsoft Corp"; distance:0;
    content:"|0a 0a|"; distance:0;
    classtype:successful-admin;
    sid:2008953; rev:9;
    metadata:created_at 2010_07_30, confidence Medium, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)

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