Some PPSx and PPTx files are being detected as multimedia, but not all of them, why?
Symptoms
Whenever you send a PPTx or PPSx file with embedded movies or sound files, the file is quarantined as violating the Multimedia file rule.
The multimedia file rule scans within containers, not just the top level file. In addition, it does not detect based on file extension, it's detections are based on true file typing. In other words, if you attempt to send an MP3 file by renaming the file to
Disable the multimedia file rule and use the "Quarantine Triggered Attachment Names" content filtering rule with the "Sample Multimedia File Names" match list
OR
Edit the powerpoint file to no longer contain Multimedia content as defined in the references section of this document.
To multimedia file rule and enable a content filtering rule to replace it
SMSMSE will now detect Multimedia files only at the top file level, and only based upon file name, not true file typing. PPT files will not trigger against this rule regardless of their content.
References
File types detected by the Multimedia file rule:
Amiga MED/OctaMED Tracker Module Sound File | *.MED |
AU Audio File, Audacity Audio Block | *.AU |
Audio Interchange File | *.AIFF, *.AIFC, *.AIF |
Audio Video Interleave File | *.AVI |
Impulse Tracker Music Module | *.IT |
MPEG AlbumWrap Wrapped Music File Archive | *.MP3 |
MPEG Movie Clip, MPEG-4 Audio Layer File | *.MPEG |
MultiTracker Music Module | *.MTM |
Musical Instrument Digital Interface | *.MIDI |
QuickTime Video Clip | *.QT, *.MOV |
RealMedia File | *.RA |
OGG Vorbis Codec Compressed WAV File | *.OGG |
Scream Tracker Music Interface Kit Song/Module | *.STX |
ScreamTracker v3 Sound File | *.S3M |
Shorten Audio Compression File | *.SHN |
Waveform Audio | *.WAV |
Windows Media File | *.WMV |
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