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Mails with Windows Media Player skin (wmz) file attachments are quarantined

    • Updated:
    • 16 Feb 2016
    • Product/Version:
    • InterScan Messaging Security Suite 7.1 Linux
    • InterScan Messaging Security Suite 7.1 Windows
    • InterScan Messaging Security Suite 7.5 Windows
    • InterScan Messaging Security Virtual Appliance 8.2
    • InterScan Messaging Security Virtual Appliance 8.5
    • InterScan Messaging Security Virtual Appliance 9.0
    • Platform:
    • N/A N/A
Summary

Mails with *.wmz attachment are quarantined by the true file type attachment filter, even when there is no attachment filter defined for *.wmz files.

In the scanner log, the following trigger information show up:

log.imss.<date>.<count>
=======================
2015/07/27 17:24:39 GMT+08:00 [18192:4124452560] [NORMAL]eManagerFilter: Entity name: image003.wmz  Reason: <<<FTYPE>>>GNU ZIP<<<IN SELECT>>>  Index:1
2015/07/27 17:24:39 GMT+08:00 [18192:4124452560] [NORMAL]eManagerFilter: Entity name: image006.wmz  Reason: <<<FTYPE>>>GNU ZIP<<<IN SELECT>>>  Index:1
...
2015/07/27 17:24:39 GMT+08:00 [18192:4124452560] Final action 0: QuarantineAction
=======================

Details
Public

Windows Media Player skin (*.wmz) files use gnu zip format, which triggers the true file type gz filter (GNU ZIP). The description of this file format can be found here.

To avoid blocking *.wmz files, the true file type attachment filter for gz must be deselected. Refer to the following image:

”Disselect

Premium
Internal
Rating:
Category:
Configure; Troubleshoot
Solution Id:
1113435
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