Sign In with your
Trend Micro Account
Need Help?
Need More Help?

Create a technical support case if you need further support.

"Damaged_ZipFile has been detected" appears when scanning emails with large attachments in Worry-Free Business Security (WFBS) Advanced

    • Updated:
    • 14 Jan 2016
    • Product/Version:
    • Worry-Free Business Security Standard/Advanced 7.0
    • Worry-Free Business Security Standard/Advanced 8.0
    • Platform:
    • Windows 2000 Server
    • Windows 2003 Standard Server Edition
    • Windows 2008 Datacenter Server
    • Windows 2008 Enterprise Server
    • Windows 2008 Standard Server Edition
Summary

WFBS Advanced's Real-time Scan monitor shows the following message when scanning mails with attachments bigger than 30MB:

[Virus Scanning Filter] file "<name of file>.zip" [Damaged_ZipFile]

WFBS Advanced then sends an email to you with a text file named:

REMOVED_BY_THE_EXCHANGE_EMAIL_SCANNING_SERVICE_008BC5E7_55E9F016D00.

The issue occurs because the SMEX store level hook truncates files larger than 30MB into 30MB files before it does the scan. This may damage the file structure of the attachment, and cause WFBS Advanced to treat the file as a corrupted zip file.

Details
Public

As a workaround, do the following:

  1. Open the Registry (regedit.exe) and go to HKEY_LOCAL_MACHINE\SOFTWARE\TrendMicro\ScanMail for Exchange\CurrentVersion.
     
    Always back up the whole registry before making any modifications. Incorrect changes to the registry can cause serious system problems.
  2. Add the "MaxAllowedVsapiMessageSize" registry key and set its value to "104857600" (100MB).
  3. Restart the Messaging Security Agent Master Service.

WFBS Advanced will show the message "[Over Restriction (attachment size)]", but you will still receive the email with the attachment.

Premium
Internal
Rating:
Category:
Configure
Solution Id:
1037588
Feedback
Did this article help you?

Thank you for your feedback!

To help us improve the quality of this article, please leave your email here so we can clarify further your feedback, if neccessary:
We will not send you spam or share your email address.

*This form is automated system. General questions, technical, sales, and product-related issues submitted through this form will not be answered.

If you need additional help, you may try to contact the support team. Contact Support


To help us improve the quality of this article, please leave your email here so we can clarify further your feedback, if neccessary:
We will not send you spam or share your email address.

*This form is automated system. General questions, technical, sales, and product-related issues submitted through this form will not be answered.


Need More Help?

Create a technical support case if you need further support.