/usr/src/virtualbox-guest-4.1.42/dkms.conf is in virtualbox-guest-dkms 4.1.42-dfsg-1+deb7u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 | PACKAGE_NAME="virtualbox-guest"
PACKAGE_VERSION="4.1.42"
CLEAN="rm -f *.*o"
BUILT_MODULE_NAME[0]="vboxguest"
BUILT_MODULE_LOCATION[0]="vboxguest"
DEST_MODULE_LOCATION[0]="/updates"
BUILT_MODULE_NAME[1]="vboxsf"
BUILT_MODULE_LOCATION[1]="vboxsf"
DEST_MODULE_LOCATION[1]="/updates"
BUILT_MODULE_NAME[2]="vboxvideo"
BUILT_MODULE_LOCATION[2]="vboxvideo"
DEST_MODULE_LOCATION[2]="/updates"
AUTOINSTALL="yes"
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