ET POLICY NSecSoft Remote Monitoring Update/Download Activity M2

Query · suricata

flow:established,to_server;
stream_size:server,=,1;
dsize:512;
content:"MFjOLrqOLbmPnAKuM7cBwxcPgaqvM7cNcoZKIYmscocPnAOuM7jRJYJy2YBEmEORcoZKLSuscOByLFZL2rZunrfOrFqNJazEJ7GXgYNocF24J8EocoZOgST/Ja3sceRocazuJaOEIYsvnYNsce5ocxkV"; startswith; fast_pattern;
Raw source ET POLICY NSecSoft Remote Monitoring Update/Download Activity M2 · Suricata
Esc
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 POLICY NSecSoft Remote Monitoring Update/Download Activity M2";
    flow:established,to_server;
    stream_size:server,=,1;
    dsize:512;
    content:"MFjOLrqOLbmPnAKuM7cBwxcPgaqvM7cNcoZKIYmscocPnAOuM7jRJYJy2YBEmEORcoZKLSuscOByLFZL2rZunrfOrFqNJazEJ7GXgYNocF24J8EocoZOgST/Ja3sceRocazuJaOEIYsvnYNsce5ocxkV"; startswith; fast_pattern;
    reference:md5,9b9f3a3b03831b6f98ca1b935dd0eb51;
    classtype:bad-unknown;
    sid:2034178; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_10_12, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_10_12;
)

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