For years we have been saying how running security software that does any monitoring (active/passive) or inspection of Exchange processes/file paths (such as Anti-Virus, for example) on your Exchange...
Updated Jan 12, 2024
Version 5.0
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The_Exchange_TeamNot related to Defender, but the malware signatures seem to be broken since Mar 08. I'm getting FIPS warning messages (ID 6035) in the event logs of our Exchange servers.
MS Filtering Engine Update process was unsuccessful in testing an engine update.
Engine: Microsoft
LastCheckedTime:2023-03-10T09:12:48.000Z
Last update: 08.03.2023 21:23:48
SignatureDateTime: 08.03.2023 15:10:16
Version: 1.383.1289.0
UpdateStatus: UpdateAttemptFailed
I've tried manually downloading the signature via the 'Update-Engines.ps1' script, same result.
Are you aware of any issues with the malware signatures?