Elastic medium stable eql

Remote Windows Service Installed

Identifies a network logon followed by Windows service creation with same LogonId. This could be indicative of lateral movement, but will be noisy if commonly done by administrators."

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Detection Logic

sequence by winlog.logon.id, winlog.computer_name with maxspan=1m
[authentication where host.os.type == "windows" and event.action == "logged-in" and winlog.logon.type : "Network" and
 event.outcome == "success" and source.ip != null and source.ip != "127.0.0.1" and source.ip != "::1"]
[iam where host.os.type == "windows" and event.action == "service-installed" and
 not winlog.event_data.SubjectLogonId : "0x3e7" and
 not winlog.event_data.ServiceFileName :
               ("?:\\Windows\\ADCR_Agent\\adcrsvc.exe",
                "?:\\Windows\\System32\\VSSVC.exe",
                "?:\\Windows\\servicing\\TrustedInstaller.exe",
                "?:\\Windows\\System32\\svchost.exe",
                "?:\\Program Files (x86)\\*.exe",
                "?:\\Program Files\\*.exe",
                "?:\\Windows\\PSEXESVC.EXE",
                "?:\\Windows\\System32\\sppsvc.exe",
                "?:\\Windows\\System32\\wbem\\WmiApSrv.exe",
                "?:\\WINDOWS\\RemoteAuditService.exe",
                "?:\\Windows\\VeeamVssSupport\\VeeamGuestHelper.exe",
                "?:\\Windows\\VeeamLogShipper\\VeeamLogShipper.exe",
                "?:\\Windows\\CAInvokerService.exe",
                "?:\\Windows\\System32\\upfc.exe",
                "?:\\Windows\\AdminArsenal\\PDQ*.exe",
                "?:\\Windows\\System32\\vds.exe",
                "?:\\Windows\\Veeam\\Backup\\VeeamDeploymentSvc.exe",
                "?:\\Windows\\ProPatches\\Scheduler\\STSchedEx.exe",
                "?:\\Windows\\System32\\certsrv.exe",
                "?:\\Windows\\eset-remote-install-service.exe",
                "?:\\Pella Corporation\\Pella Order Management\\GPAutoSvc.exe",
                "?:\\Pella Corporation\\OSCToGPAutoService\\OSCToGPAutoSvc.exe",
                "?:\\Pella Corporation\\Pella Order Management\\GPAutoSvc.exe",
                "?:\\Windows\\SysWOW64\\NwxExeSvc\\NwxExeSvc.exe",
                "?:\\Windows\\System32\\taskhostex.exe")]

Field Validations

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