Remove Exported Mailbox from Exchange Webserver
Detects removal of an exported Exchange mailbox which could be to cover tracks from ProxyShell exploit
Detection logic
keywords
"|all":
- Remove-MailboxExportRequest
- " -Identity "
- ' -Confirm "False"'Condition
keywordsRaw YAML
title: Remove Exported Mailbox from Exchange Webserver
id: 09570ae5-889e-43ea-aac0-0e1221fb3d95
status: test
description: Detects removal of an exported Exchange mailbox which could be to cover tracks from ProxyShell exploit
references:
- https://github.com/rapid7/metasploit-framework/blob/1416b5776d963f21b7b5b45d19f3e961201e0aed/modules/exploits/windows/http/exchange_proxyshell_rce.rb#L430
author: Christian Burkard (Nextron Systems)
date: 2021-08-27
modified: 2023-01-23
tags:
- attack.stealth
- attack.t1070
logsource:
service: msexchange-management
product: windows
detection:
keywords:
'|all':
- 'Remove-MailboxExportRequest'
- ' -Identity '
- ' -Confirm "False"'
condition: keywords
falsepositives:
- Unknown
level: highFalse positives
- Unknown