ET MALWARE CommentCrew Possible APT backdoor stage 2 download base64 update.gif

Query · suricata

flow:established,to_client;
file_data;
content:"IHVwZGF0ZS5naWY=";
Raw source ET MALWARE CommentCrew Possible APT backdoor stage 2 download base64 update.gif · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET 80 -> $HOME_NET any (
    msg:"ET MALWARE CommentCrew Possible APT backdoor stage 2 download base64 update.gif";
    flow:established,to_client;
    file_data;
    content:"IHVwZGF0ZS5naWY=";
    classtype:targeted-activity;
    sid:2016486; rev:4;
    metadata:created_at 2013_02_22, confidence Medium, signature_severity Major, updated_at 2019_07_26;
)

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