ET INFO ISLOnline RMM Installer Activity

Query · suricata

flow:established,to_server;
http.uri;
content:"|2f|ISLAlwaysOn|3f|"; fast_pattern;
http.host;
content:"islonline.net"; endswith;
target:src_ip;
Raw source ET INFO ISLOnline RMM Installer 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 INFO ISLOnline RMM Installer Activity";
    flow:established,to_server;
    http.uri;
    content:"|2f|ISLAlwaysOn|3f|"; fast_pattern;
    http.host;
    content:"islonline.net"; endswith;
    reference:md5,205373cb713016d5aff8c7d3dc50a29a;
    reference:url,attack.mitre.org/techniques/T1219/;
    classtype:misc-activity;
    sid:2063689; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, tls_state TLSDecrypt, created_at 2025_07_24, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Informational, tag RAT, tag RemoteAccessTool, updated_at 2025_07_24, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1219, mitre_technique_name Remote_Access_Software;
    target:src_ip;
)

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