ET MALWARE FrigidBackdoor Request ZIP

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri; bsize:16;
content:"/trovo/index.php"; fast_pattern;
http.user_agent;
content:"curl/"; startswith;
Raw source ET MALWARE FrigidBackdoor Request ZIP · 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 FrigidBackdoor Request ZIP";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri; bsize:16;
    content:"/trovo/index.php"; fast_pattern;
    http.user_agent;
    content:"curl/"; startswith;
    reference:url,moonlock.com/macc-stealer-macsync-backdoor;
    classtype:trojan-activity;
    sid:2064778; rev:1;
    metadata:affected_product Mac_OSX, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2025_09_18, deployment Perimeter, confidence High, signature_severity Major, tag Backdoor, tag c2, tag FrigidBackdoor, updated_at 2025_09_18, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
)

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