Credential Access (TA0006)(external, opens in a new tab or window)
text code block:process where host.os.type == "windows" and event.code == "10" and winlog.event_data.TargetImage : "?:\\WINDOWS\\system32\\lsass.exe" and not winlog.event_data.GrantedAccess : ("0x1000", "0x1400", "0x101400", "0x101000", "0x101001", "0x100000", "0x100040", "0x3200", "0x40", "0x3200") and not process.name : ("procexp64.exe", "procmon.exe", "procexp.exe", "Microsoft.Identity.AadConnect.Health.AadSync.Host.ex") and not process.executable : ( "?:\\ProgramData\\Microsoft\\Windows Defender\\platform\\*", "?:\\ProgramData\\WebEx\\webex\\*", "?:\\Program Files (x86)\\*", "?:\\Program Files\\*", "?:\\Windows\\CCM\\CcmExec.exe", "?:\\Windows\\LTSvc\\LTSVC.exe", "?:\\Windows\\Sysmon.exe", "?:\\Windows\\Sysmon64.exe", "C:\\Windows\\CynetMS.exe", "?:\\Windows\\system32\\csrss.exe", "?:\\Windows\\System32\\lsm.exe", "?:\\Windows\\system32\\MRT.exe", "?:\\Windows\\System32\\msiexec.exe", "?:\\Windows\\system32\\wbem\\wmiprvse.exe", "?:\\Windows\\system32\\wininit.exe", "?:\\Windows\\SystemTemp\\GUM*.tmp\\GoogleUpdate.exe", "?:\\Windows\\sysWOW64\\wbem\\wmiprvse.exe", "C:\\oracle\\64\\02\\instantclient_19_13\\sqlplus.exe", "C:\\oracle\\64\\02\\instantclient_19_13\\sqlldr.exe", "d:\\oracle\\product\\19\\dbhome1\\bin\\ORACLE.EXE", "C:\\wamp\\bin\\apache\\apache*\\bin\\httpd.exe", "C:\\Windows\\system32\\netstat.exe", "C:\\PROGRA~1\\INFORM~1\\apps\\jdk\\*\\jre\\bin\\java.exe", "C:\\PROGRA~2\\CyberCNSAgentV2\\osqueryi.exe", "C:\\Utilityw2k19\\packetbeat\\packetbeat.exe", "C:\\ProgramData\\Cisco\\Cisco AnyConnect Secure Mobility Client\\Temp\\CloudUpdate\\vpndownloader.exe", "C:\\ProgramData\\Cisco\\Cisco Secure Client\\Temp\\CloudUpdate\\vpndownloader.exe" ) and not winlog.event_data.CallTrace : ("*mpengine.dll*", "*appresolver.dll*", "*sysmain.dll*")
Install detection rules in Elastic Security
Detect Suspicious Lsass Process Access 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).