ET MALWARE LuminosityLink - Inbound Data Channel CnC Delimiter

Query · suricata

flow:established,to_client;
dsize:<25;
content:"8_=_8"; fast_pattern; endswith;
Raw source ET MALWARE LuminosityLink - Inbound Data Channel CnC Delimiter · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $EXTERNAL_NET 1024: -> $HOME_NET any (
    msg:"ET MALWARE LuminosityLink - Inbound Data Channel CnC Delimiter";
    flow:established,to_client;
    dsize:<25;
    content:"8_=_8"; fast_pattern; endswith;
    reference:md5,ab03070048fdbadbb901ec75b8f9f2e9;
    classtype:command-and-control;
    sid:2023241; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_09_15, deployment Perimeter, malware_family Luminosity_Link, confidence High, signature_severity Major, updated_at 2019_09_28;
)

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