ET MALWARE OSX/iWebUpdate CnC Activity

Query · suricata

flow:established,to_server;
http.uri;
content:".php?v="; fast_pattern;
content:"&c="; distance:0;
content:"&os="; distance:0;
content:"&hw="; distance:0;
pcre:"/\.php\?v=\d+&c=[^&]+&u=[0-9a-fA-F]{8}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{12}&os=/";
target:src_ip;
Raw source ET MALWARE OSX/iWebUpdate 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/iWebUpdate CnC Activity";
    flow:established,to_server;
    http.uri;
    content:".php?v="; fast_pattern;
    content:"&c="; distance:0;
    content:"&os="; distance:0;
    content:"&hw="; distance:0;
    pcre:"/\.php\?v=\d+&c=[^&]+&u=[0-9a-fA-F]{8}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{12}&os=/";
    reference:url,objective-see.org/blog/blog_0x72.html;
    classtype:command-and-control;
    sid:2044206; rev:1;
    metadata:affected_product Mac_OSX, attack_target Client_Endpoint, created_at 2023_02_15, deployment Perimeter, malware_family OSX_iWebUpdate, performance_impact Significant, confidence High, signature_severity Major, tag c2, updated_at 2023_02_15, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
    target:src_ip;
)

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