A Power Point attachment triggers unscannable verdict, after upgrade to Symantec Messaging Gateway (SMG) 9.5.x
Last Updated August 23, 2011
SMG version 9.5.x renders an unscannable verdict for a Power Point attachment.
Following error is seen in bmserver_log at NOTICE level:
 Antivirus returns unscannable because [unknown name] has other serious decomposition errors.
This is a known issue.
Symantec is aware of this issue and will update this document when a solution becomes available. It is not necessary to log a support case on this issue. Please subscribe to this article to be notified of any updates.
There are two short-term workarounds for this issue, so the file does not generate an unscannable verdict for a .ppt attachment:
Asking the sender of the PowerPoint presentation to re-save the file from .ppt to .pptx extension before sending it out. For example, under Microsoft PowerPoint version 2007, under "Save As"->"Power Point Presentation", next to the "Save as type" field, instead of "PowerPoint 97-2003 Presentation (*.ppt)", the choice should be "PowerPoint Presentation (*.pptx)". Note: When you re-save the file by using PowerPoint, it may show you a dialog box saying the following and prompting you to click on the “OK” button:
Your presentation contains one or more of the following:
* Binary tags
* Hyperlinks on diagrams
These items cannot be saved in the PowerPoint 2007 XML File Format and have been discarded from the saved file. To preserve these items, save the presentation using the PowerPoint 97-2003 File Formats.
If the above workaround is not feasible for any reason, then modifying a policy to allow the .ppt file through the appliance until a long-term solution is available.
Imported Document ID: TECH162200
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