ET CHAT Yahoo IM file transfer request

Query · suricata

flow:established;
content:"YMSG"; nocase; depth:4;
content:"|00 dc|"; offset:10; depth:2;
Raw source ET CHAT Yahoo IM file transfer request · 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 <> $EXTERNAL_NET any (
    msg:"ET CHAT Yahoo IM file transfer request";
    flow:established;
    content:"YMSG"; nocase; depth:4;
    content:"|00 dc|"; offset:10; depth:2;
    classtype:policy-violation;
    sid:2001259; rev:7;
    metadata:created_at 2010_07_30, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)

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