sophie not detecting some viruses

I am running sophie-3.02 on FreeBSD 4.4-RELEASE.
sophie is linked against (the newest) libsavi.so.3.2.07.040 (3.77b)

Today I discovered that if using sweep it discovers
     SWEEP virus detection utility
     Version 3.77, January 2004 [FreeBSD/Intel]
     Includes detection for 86890 viruses, trojans and worms
     Command line qualifiers are: -f -sc -rec -cab -f -archive -loopback -tnef
     [ ... ]
     >>> Virus 'Troj/Sefex-A' found in file Profile-720974.html

However using sophie:
    /var/qmail/antivirus/bin/scan_file /var/run/sophie $PWD/Profile-720974.html
    FILE NOT INFECTED: [/tmp/photo/Profile-720974.html]

All options are set to '1' but
    Option 'GrpSuper' set to '0'
    Option 'GrpDisinfect' set to '0'
    Option 'MaxRecursionDepth' set to '16'

I have copied the infected file to
    http://www.space.net/~maex/Profile-720974.html.bin  (19755 bytes)

Does scanning this file work for you?
Does anyone have an idea what might be the problem?

Thanks,
	\Maex

P.S. I am aware we're not running the newest version of sophie, but
     the fixes don't read like they'd have influence on the problem.

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