using_rasman_remote_access_connection_manager_windows_service_to_register_dll

rule using_rasman_remote_access_connection_manager_windows_service_to_register_dll {
 meta:
    author = "Den Iuzvyk"
    description = "Detects using RasMan (Remote Access Connection Manager) Windows service to register DLL  License: https://github.com/Neo23x0/sigma/blob/master/LICENSE.Detection.Rules.md."
    reference = "https://tdm.socprime.com/tdm/info/iyTEEDgZE5gO"
    version = "0.01"
    created = "2021-03-09"
    product = "windows"
    service = "sysmon"
    mitre = "attck.persistence, attck.t1031"

  events:
($selection_reg1.metadata.product_event_type = "13" and re.regex($selection_reg1.target.registry.registry_key, `.*\\SYSTEM\\CurrentControlSet\\services\\RasMan\\ThirdParty\\DllName`) and $selection_reg1.metadata.event_type = "SetValue" and re.regex($selection_reg1.metadata.description, `.*\.dll`))

  condition:
    $selection_reg1
}