ET MALWARE Possible APT29 Compressed Payload Download Request

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/eFax/"; depth:6;
content:".ZIP"; distance:0;
pcre:"/^\/eFax\/[^\x2e\x2f]+\.ZIP$/";
http.host;
content:"efax."; fast_pattern; startswith;
Raw source ET MALWARE Possible APT29 Compressed Payload Download 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 http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Possible APT29 Compressed Payload Download Request";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/eFax/"; depth:6;
    content:".ZIP"; distance:0;
    pcre:"/^\/eFax\/[^\x2e\x2f]+\.ZIP$/";
    http.host;
    content:"efax."; fast_pattern; startswith;
    classtype:targeted-activity;
    sid:2044215; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_11_09, deployment Perimeter, malware_family APT29_Implant, performance_impact Low, confidence Medium, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2023_02_16, former_sid 2823197;
)

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