Malware detection not working in blob storage with defender

Thib 1 Reputation point
2021-10-27T17:27:31.703+00:00

Hi,
We are building an app with a dropbox-like storage space where our users can upload all types of documents.
We recently enabled Azure defender, to detect potential malware uploaded by our users in storage containers. I tested it by uploading a malware .exe file using Azure File Explorer, and everything worked fine, I received an alert a few minutes afterwards, etc...

BUT when uploading the same file via our app (using a write SAS and a http PUT request on this SAS), no alert is triggered, and never is, even after several hours... Is there some configuration missing ? Or an option to enable somewhere ?

Thanks

Azure Blob Storage
Azure Blob Storage
An Azure service that stores unstructured data in the cloud as blobs.
2,436 questions
Microsoft Defender for Cloud
Microsoft Defender for Cloud
An Azure service that provides threat protection for workloads running in Azure, on-premises, and in other clouds. Previously known as Azure Security Center and Azure Defender.
1,201 questions
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  1. deherman-MSFT 33,626 Reputation points Microsoft Employee
    2021-11-02T19:24:09.937+00:00

    We have engaged offline to diagnose and resolve this issue. I will provide an update here once a resolution is available.