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UnknownMicrosoft Sentinel analytics

Detects several users with the same MAC address (ASIM Network Session schema)

Ideally one user should be associated with one MAC ID, this hunting query will identify if same MAC ID is associated with more than one user which can be a case of MAC spoofing attack.

Detection logic

Detection requirements

Log source product
aivectrastreamawss3azurefirewallazuremonitor_vminsightsazurensgcheckpointciscoasaciscoasaamaciscomerakicorelightfortinetmicrosoftsysmonforlinuxmicrosoftthreatprotectionpaloaltonetworkssecurityeventswindowsforwardedeventswindowssecurityeventszscaler
Log source service
awsvpcflowazurediagnosticsciscomerakinativepollercommonsecuritylogcorelight_cldevicenetworkeventssecurityeventsyslogvectrastreamvmconnectionwindowsevent

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