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SMB port 445 ( microsoft-ds)

Anonymous
2021-12-08T10:11:10+00:00

I have pc on my network that is flooding the network with port 445 traffic, our firewall denies outbound traffic on this port, I am trying to determine whether the traffic is coming from an app or service etc but nothing found, how do stop this continuous traffic and what is the reason behind it

Microsoft 365 and Office | Word | For home | Windows

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  1. Anonymous
    2022-01-26T00:25:42+00:00

    Hi Dhruv,
    My name is Igor, I have 12 Microsoft MVP awards. It's a pleasure for me to help others and I'll do all my best to help you. I'm sorry you have a problems.

    Seems you are talking about corporate environment. It is more effective to ask such questions at Q&A forum https://docs.microsoft.com/en-us/answers/index....
    It is oriented to admins and corporate users, and this forum - to home users so local experts may have no corresponding knowledge, sorry.
    Please correct me if I am wrong.

    Igor-

    What about this post suggests that this is a corporate type post? Due to Firewalls being mentioned?

    I have a MacBook Pro with the latest version of the OS running. SMB port 445 ( microsoft-ds) is currently open and running on my home network. I have zero Windows Applications installed on my MacBook Pro.

    There is an associated user 'SMB' with this service. The SMB user has my MacBook Pro rooted.

    It appears that I may have a severe security issue considering I am an Apple user, not Microsoft.

    Please clarifiy the "corporate" response. Thank you.

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  2. Anonymous
    2022-01-26T00:28:24+00:00

    I have a MacBook Pro with the latest version of the OS running. SMB port 445 ( microsoft-ds) is currently open and running on my home network. I have zero Windows Applications installed on my MacBook Pro.

    There is an associated user 'SMB' with this service. The SMB user has my MacBook Pro rooted.

    It appears that I may have a severe security issue considering I am an Apple user, not Microsoft.

    What were you able to uncover about this issue? Thank you.

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  3. Igor Leyko 111K Reputation points Independent Advisor
    2021-12-08T13:05:51+00:00

    Hi Dhruv,

    My name is Igor, I have 12 Microsoft MVP awards. It's a pleasure for me to help others and I'll do all my best to help you. I'm sorry you have a problems.

    Seems you are talking about corporate environment. It is more effective to ask such questions at Q&A forum https://docs.microsoft.com/en-us/answers/index....

    It is oriented to admins and corporate users, and this forum - to home users so local experts may have no corresponding knowledge, sorry.

    Please correct me if I am wrong.

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    2 people found this answer helpful.
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  4. Anonymous
    2021-12-08T14:26:02+00:00

    Thank you igor

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  5. Suzanne S Barnhill 277.5K Reputation points MVP Volunteer Moderator
    2021-12-08T13:08:14+00:00

    This seems to be a question about Windows rather than Word, so a post in a Windows forum would be more productive.

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