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OK, so there is definitely a problem with the Search-UnifiedAuditLog cmdlet in #Microsoft365. Confirmed this in multiple tenants - here's what I'm seeing: 🧵
#threathunting #threathunt #auditlogs #M365 #Office365 #O365 #M365Security
#threathunting #threathunt #auditlogs #M365 #Office365 #O365 #M365Security
First, go to security.microsoft.com -> Audit and perform a new search for all events in a given timeframe (a few hours, total). Have this available for reference.
Next, open PowerShell and connect to Exchange Online:
Connect-ExchangeOnline
You ran a search in the Defender portal with a date range of a few hours. Within that same timeframe, pick an even smaller date/time range that has < 100 events. You'll need those timestamps next.
Connect-ExchangeOnline
You ran a search in the Defender portal with a date range of a few hours. Within that same timeframe, pick an even smaller date/time range that has < 100 events. You'll need those timestamps next.
