T1098.002 Additional Email Delegate Permissions
Sub-technique of T1098 Account Manipulation
Adversaries may grant additional permission levels to maintain persistent access to an adversary-controlled email account. For example, the Add-MailboxPermission [PowerShell](https://attack.mitre.org/techniques/T1059/001) cmdlet, available in on-premises Exchange and in the cloud-based service Office 365, adds permissions to a mailbox.(Citation: Microsoft - Add-MailboxPermission)(Citation:…
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Sigma rules to hunt it
SigmaHQ has no rules for this technique.
Rules from SigmaHQ · Detection Rule License 1.1. Technique from MITRE ATT&CK®.