Executable file posting from external source By SIEM

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  • isynergy

    We facing strange behaviour that we received the below URI Stem (/ews/First.Surname..Domain.com/exchange.asmx/WSSecurity) with HTTP status 200 (The request has succeeded) and the source is from IP (MICROSOFT-CORP-MSN-AS-BLOCK)

    The Current Installed Version is Exchange Server 2019 CU8 with Security Patch KB5001779

    I found the below URL

    Please advise about this behaviour

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