ET MALWARE OSX/MapperState CnC Activity

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.user_agent;
content:"ms"; offset:7; depth:2;
content:"|20|(unknown|20|version)|20|";
http.request_body;
content:"smc31000"; startswith; fast_pattern;
http.header_names;
content:!"|0d 0a|Referer|0d 0a|";
Raw source ET MALWARE OSX/MapperState CnC Activity · 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/MapperState CnC Activity";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.user_agent;
    content:"ms"; offset:7; depth:2;
    content:"|20|(unknown|20|version)|20|";
    http.request_body;
    content:"smc31000"; startswith; fast_pattern;
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|";
    reference:url,twitter.com/ConfiantIntel/status/1393215825931288580;
    classtype:trojan-activity;
    sid:2033031; rev:1;
    metadata:affected_product Mac_OSX, attack_target Client_Endpoint, created_at 2021_05_25, deployment Perimeter, malware_family OSX_MapperState, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_05_25;
)

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