PowerShell dumps users and roles from Exchange server

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PowerShell dumps users and roles from Exchange server

PowerShell is used to dump users and roles from Exchange servers, this may indicate malicious behavior (e.g. the SolarStorm campaign).

Module:: Platform Analytics
Agent event type:: Process execution
Category:: Discovery
Status:: Enabled

ATT&CK tactics: Discovery (TA0007)

ATT&CK techniques: Account Discovery: Email Account (T1087.003) Permission Groups Discovery: Domain Groups (T1069.002)

Indicator:

Process action type = execution AND target process cmd =~ .*PSConsoleFile.*(Get-ManagementRoleAssignment|GetEffectiveUsers).*(Name|Role|EffectiveUserName|AssignmentMethod|IsValid).* AND target process name = powershell.exe Host host os = windows

Preventable: yes