ET HUNTING Powershell ScheduledTasks cmdlet New-ScheduledTask command in HTTP Body Response

alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET HUNTING Powershell ScheduledTasks cmdlet New-ScheduledTask command in HTTP Body Response";
    flow:established,to_client;
    http.stat_code;
    content:"200";
    http.response_body;
    content:"new-scheduledtask"; fast_pattern; nocase;
    pcre:"/(?:\x2daction|\x2dtrigger|\x2dtaskname|\x2dsettings)?/Ri";
    reference:url,learn.microsoft.com/en-us/powershell/module/scheduledtasks/?view=windowsserver2025-ps;
    classtype:bad-unknown;
    sid:2064759; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_and_Server, tls_state plaintext, created_at 2025_09_17, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_09_17, mitre_tactic_id TA0003, mitre_tactic_name Persistence, mitre_technique_id T1547, mitre_technique_name Boot_Or_Logon_Autostart_Execution;
    target:dest_ip;
)