endpoint(opens in a new tab or window)
windows(opens in a new tab or window)
system(opens in a new tab or window)
process where host.os.type == "windows" and event.type == "start" and
process.name : ("wscript.exe",
"cscript.exe",
"rundll32.exe",
"regsvr32.exe",
"cmstp.exe",
"RegAsm.exe",
"installutil.exe",
"mshta.exe",
"RegSvcs.exe",
"powershell.exe",
"pwsh.exe",
"cmd.exe") and
/* add suspicious execution paths here */
process.args : ("C:\\PerfLogs\\*",
"C:\\Users\\Public\\*",
"C:\\Windows\\Tasks\\*",
"C:\\Intel\\*",
"C:\\AMD\\Temp\\*",
"C:\\Windows\\AppReadiness\\*",
"C:\\Windows\\ServiceState\\*",
"C:\\Windows\\security\\*",
"C:\\Windows\\IdentityCRL\\*",
"C:\\Windows\\Branding\\*",
"C:\\Windows\\csc\\*",
"C:\\Windows\\DigitalLocker\\*",
"C:\\Windows\\en-US\\*",
"C:\\Windows\\wlansvc\\*",
"C:\\Windows\\Prefetch\\*",
"C:\\Windows\\Fonts\\*",
"C:\\Windows\\diagnostics\\*",
"C:\\Windows\\TAPI\\*",
"C:\\Windows\\INF\\*",
"C:\\Windows\\System32\\Speech\\*",
"C:\\windows\\tracing\\*",
"c:\\windows\\IME\\*",
"c:\\Windows\\Performance\\*",
"c:\\windows\\intel\\*",
"c:\\windows\\ms\\*",
"C:\\Windows\\dot3svc\\*",
"C:\\Windows\\panther\\*",
"C:\\Windows\\RemotePackages\\*",
"C:\\Windows\\OCR\\*",
"C:\\Windows\\appcompat\\*",
"C:\\Windows\\apppatch\\*",
"C:\\Windows\\addins\\*",
"C:\\Windows\\Setup\\*",
"C:\\Windows\\Help\\*",
"C:\\Windows\\SKB\\*",
"C:\\Windows\\Vss\\*",
"C:\\Windows\\servicing\\*",
"C:\\Windows\\CbsTemp\\*",
"C:\\Windows\\Logs\\*",
"C:\\Windows\\WaaS\\*",
"C:\\Windows\\twain_32\\*",
"C:\\Windows\\ShellExperiences\\*",
"C:\\Windows\\ShellComponents\\*",
"C:\\Windows\\PLA\\*",
"C:\\Windows\\Migration\\*",
"C:\\Windows\\debug\\*",
"C:\\Windows\\Cursors\\*",
"C:\\Windows\\Containers\\*",
"C:\\Windows\\Boot\\*",
"C:\\Windows\\bcastdvr\\*",
"C:\\Windows\\TextInput\\*",
"C:\\Windows\\security\\*",
"C:\\Windows\\schemas\\*",
"C:\\Windows\\SchCache\\*",
"C:\\Windows\\Resources\\*",
"C:\\Windows\\rescache\\*",
"C:\\Windows\\Provisioning\\*",
"C:\\Windows\\PrintDialog\\*",
"C:\\Windows\\PolicyDefinitions\\*",
"C:\\Windows\\media\\*",
"C:\\Windows\\Globalization\\*",
"C:\\Windows\\L2Schemas\\*",
"C:\\Windows\\LiveKernelReports\\*",
"C:\\Windows\\ModemLogs\\*",
"C:\\Windows\\ImmersiveControlPanel\\*",
"C:\\$Recycle.Bin\\*") and
/* noisy FP patterns */
not process.parent.executable : ("C:\\WINDOWS\\System32\\DriverStore\\FileRepository\\*\\igfxCUIService*.exe",
"C:\\Windows\\System32\\spacedeskService.exe",
"C:\\Program Files\\Dell\\SupportAssistAgent\\SRE\\SRE.exe") and
not (process.name : "rundll32.exe" and
process.args : ("uxtheme.dll,#64",
"PRINTUI.DLL,PrintUIEntry",
"?:\\Windows\\System32\\FirewallControlPanel.dll,ShowNotificationDialog",
"?:\\WINDOWS\\system32\\Speech\\SpeechUX\\sapi.cpl",
"?:\\Windows\\system32\\shell32.dll,OpenAs_RunDLL")) and
not (process.name : "cscript.exe" and process.args : "?:\\WINDOWS\\system32\\calluxxprovider.vbs") and
not (process.name : "cmd.exe" and process.args : "?:\\WINDOWS\\system32\\powercfg.exe" and process.args : "?:\\WINDOWS\\inf\\PowerPlan.log") and
not (process.name : "regsvr32.exe" and process.args : "?:\\Windows\\Help\\OEM\\scripts\\checkmui.dll") and
not (process.name : "cmd.exe" and
process.parent.executable : ("?:\\Windows\\System32\\oobe\\windeploy.exe",
"?:\\Program Files (x86)\\ossec-agent\\wazuh-agent.exe",
"?:\\Windows\\System32\\igfxCUIService.exe",
"?:\\Windows\\Temp\\IE*.tmp\\IE*-support\\ienrcore.exe"))
Install detection rules in Elastic Security
Detect Execution from Unusual Directory - Command Line in the Elastic Security detection engine by installing this rule into your Elastic Stack.
To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).