Veeam Support Knowledge Base
"Item may have a virus reported by the virus scanner plug-in."

"Item may have a virus reported by the virus scanner plug-in."

KB ID:	3096
Product:	Veeam Data Cloud for Microsoft 365 Veeam Backup for Microsoft 365
Published:	2020-02-07
Last Modified:	2025-03-28

Cheers for trusting us with the spot in your mailbox!

Now you’re less likely to miss what’s been brewing in our knowledge base with this weekly digest

Oops! Something went wrong.

Please, try again later.

Challenge

Backup jobs with SharePoint Online or OneDrive for Business items fail with the following warning:

Processing OneDrive Username ({user_url}) finished with warning:
Failed to backup item: {file_path},
Item may have a virus reported by the virus scanner plug-in.

Error Message Change in Veeam Backup for Microsoft 365 8.0.x

In Veeam Backup for Microsoft 365 8.0 builds (8.0.x), the error message wording changed to:

Failed to download block in time: {time}

This change was unintentional and was corrected in Veeam Backup for Microsoft 365 8.1.

Cause

Items being backed up might be blocked by the internal SharePoint Online antivirus.
For more information, see Microsoft Defender for Office 365 - Built-in virus protection in SharePoint Online, OneDrive, and Microsoft Teams.

Solution

Outcome

The file mentioned in the error will not be backed up by Veeam Backup for Microsoft 365, because the attempt to download the item(s) was blocked by the internal SharePoint Online antivirus.

Troubleshooting

As an isolation step to check whether items are infected, open OneDrive or the site that cannot be backed up and try downloading the file(s) manually. If the files you are trying to download are infected, the following will appear:

If you are able to manually down the file(s) without seeing the above message about the file being "Compromised," contact Veeam Support for further assistance investigating this situation.

To submit feedback regarding this article, please click this link: Send Article Feedback
To report a typo on this page, highlight the typo with your mouse and press CTRL + Enter.

Spelling error in text

Thank you!

Your feedback has been received and will be reviewed.

Oops! Something went wrong.

Please, try again later.

You have selected too large block!

Please try select less.

KB Feedback/Suggestion

This form is only for KB Feedback/Suggestions, if you need help with the software open a support case

Product

Topic

Description

By submitting, you are agreeing to have your personal information managed in accordance with the terms of Veeam's Privacy Notice.

I would like to receive a follow-up email regarding my feedback

Verify your email to continue your product download

We've sent a verification code to:

An email with a verification code was just sent to

Didn't receive the code? Click to resend in sec

Didn't receive the code? Click to resend

Thank you!

Your feedback has been received and will be reviewed.

Oops! Something went wrong.

Please, try again later.