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----------
-----BEGIN PGP SIGNED MESSAGE-----
Hash: RIPEMD160

I have a file, rp5.exe, snared by my running instance of nepenthes,
which is quite obviously compressed via UPX...

upx -l rp5.exe
                       Ultimate Packer for eXecutables
    Copyright (C) 1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006
UPX 1.94 beta   Markus Oberhumer, Laszlo Molnar & John Reiser   Mar 11th
2006

        File size         Ratio      Format      Name
   --------------------   ------   -----------   -----------
    152064 ->     61952   40.74%    win32/pe     rp5.exe

... but which I can't decompress...

upx: rp5.exe: Exception: checksum error.

Which is obviously why Norman sandbox stated, for this particular binary..

nepenthes-9291587b85191b06bbf80d4ea1fb142e-rp5.exe : Not detected by
sandbox (Signature: NO_VIRUS).

Presumably, this means that whoever compressed this binary used an
altered version of upx?

See Norman Sandbox reference 20060315-665 for the full (and unhelpful)
report.

Regards.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2.2 (GNU/Linux)

iD8DBQFEGF/1BzVUSpB18YoRA6H7AJ0WBPAxFa9QZY3qCXpX/+19HUs+4gCeNdaF
qatvE1+3grAjB4H13Hr5MMQ=
=9jpt
-----END PGP SIGNATURE-----
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