ET INFO SimpleHelp RMM lossyproc Request to Server

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/lossyproc|3f|rand|3d|"; startswith; fast_pattern;
pcre:"/^\d\x2e\d{10,}\x2e\d{10,}$/R";
http.request_body;
content:"SG|5f|";
threshold:type limit,track by_src,count 5,seconds 300;
target:src_ip;
Raw source ET INFO SimpleHelp RMM lossyproc Request to Server · 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 -> $EXTERNAL_NET any (
    msg:"ET INFO SimpleHelp RMM lossyproc Request to Server";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/lossyproc|3f|rand|3d|"; startswith; fast_pattern;
    pcre:"/^\d\x2e\d{10,}\x2e\d{10,}$/R";
    http.request_body;
    content:"SG|5f|";
    threshold:type limit,track by_src,count 5,seconds 300;
    reference:url,simple-help.com/;
    classtype:misc-activity;
    sid:2067966; rev:1;
    metadata:affected_product SimpleHelp, attack_target Client_and_Server, tls_state plaintext, created_at 2026_03_02, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag RMM, updated_at 2026_03_02, 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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