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CriticalSigmaHQFlorian Roth (Nextron Systems)

Suspicious PowerShell Mailbox Export to Share

Detects usage of the powerShell New-MailboxExportRequest Cmdlet to exports a mailbox to a remote or local share, as used in ProxyShell exploitations

Detection logic

Detection requirements

Log source product
windows
Log source category
process_creation

Known benign triggers

  • Unknown

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