ET MALWARE OSX/OceanLotus.D Sending Data to CnC

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:".js"; endswith;
http.user_agent;
content:"curl/"; fast_pattern;
http.content_type;
content:"application/x-www-form-urlencoded"; startswith;
http.header_names;
content:"Host|0d 0a|User-Agent|0d 0a|Accept|0d 0a|Content-Length|0d 0a|Content-Type";
content:!"Referer";
content:!"Cache";
content:!"Accept-";
Raw source ET MALWARE OSX/OceanLotus.D Sending Data to CnC · Suricata
Esc
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 OSX/OceanLotus.D Sending Data to CnC";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".js"; endswith;
    http.user_agent;
    content:"curl/"; fast_pattern;
    http.content_type;
    content:"application/x-www-form-urlencoded"; startswith;
    http.header_names;
    content:"Host|0d 0a|User-Agent|0d 0a|Accept|0d 0a|Content-Length|0d 0a|Content-Type";
    content:!"Referer";
    content:!"Cache";
    content:!"Accept-";
    reference:md5,306d3ed0a7c899b5ef9d0e3c91f05193;
    reference:url,blog.trendmicro.com/trendlabs-security-intelligence/new-macos-backdoor-linked-to-oceanlotus-found/;
    classtype:command-and-control;
    sid:2025464; rev:3;
    metadata:affected_product Mac_OSX, attack_target Client_Endpoint, created_at 2018_04_05, deployment Perimeter, malware_family OceanLotus, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_09_16;
)

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