Defense Evasion (TA0005)(external, opens in a new tab or window)
text code block:sequence by host.id with maxspan=5s [process where host.os.type == "windows" and event.type == "end" and process.code_signature.trusted != true and not process.executable like ("C:\\Windows\\SoftwareDistribution\\*.exe", "C:\\Windows\\WinSxS\\*.exe", "?:\\Windows\\Postillion\\Office\\*.exe") and not ( process.name : "infinst.exe" and process.parent.name: "dxsetup.exe" and process.parent.code_signature.subject_name == "NVIDIA Corporation" and process.parent.code_signature.status == "trusted" ) ] by process.executable [file where host.os.type == "windows" and event.type == "deletion" and file.extension in~ ("exe", "scr", "com") and not process.executable like ("?:\\Program Files\\*.exe", "?:\\Program Files (x86)\\*.exe", "?:\\Windows\\System32\\svchost.exe", "?:\\Windows\\System32\\drvinst.exe", "?:\\Windows\\Postillion\\Office\\*.exe") and not file.path like ( "?:\\Program Files\\*.exe", "?:\\Program Files (x86)\\*.exe", "?:\\Windows\\Temp\\*\\DismHost.exe", "?:\\$WINDOWS.~BT\\Work\\*\\DismHost.exe", "?:\\$WinREAgent\\Scratch\\*\\DismHost.exe", "?:\\Windows\\tenable_mw_scan_*.exe", "?:\\Users\\*\\AppData\\Local\\Temp\\LogiUI\\Pak\\uninstall.exe", "?:\\ProgramData\\chocolatey\\*.exe" ) and not (process.name : "OktaVerifySetup-*.exe" and process.code_signature.subject_name == "Okta, Inc.") and not ( process.executable : "?:\\Windows\\SysWOW64\\config\\systemprofile\\Citrix\\UpdaterBinaries\\CitrixReceiver\\*" and process.code_signature.subject_name == "Citrix Systems, Inc." and file.path : "?:\\Windows\\SysWOW64\\config\\systemprofile\\Citrix\\UpdaterBinaries\\CitrixReceiver\\*\\bootstrapperhelper.exe" ) ] by file.path
Install detection rules in Elastic Security
Detect Deprecated - Process Termination followed by Deletion 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(external, opens in a new tab or window).