Analytics BIOC Medium

PowerShell used to export mailbox contents

An attacker may use PowerShell to export the contents of a mailbox as part of the data staging before exfiltration.

Module:
Platform Analytics
Data source:
Windows Event Collector, XDR Agent with eXtended Threat Hunting (XTH)
ATT&CK tactics: Collection (TA0009)
ATT&CK techniques: Data Staged: Local Data Staging (T1074.001)
Attacker's goals:

Export the content of a mailbox, preparing for data exfiltration.

Investigative actions:

Examine the PowerShell command to identify which mailbox has been exported. Verify that this command was executed by a trusted source.

Test period:
N/A (single event)
Deduplication:
1 Day