/usr/share/binfmts/qemu-mipsel is in qemu-user-static 1.0.50-2012.03-0ubuntu2.
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 | package qemu-user-static
interpreter /usr/bin/qemu-mipsel-static
credentials yes
offset 0
magic \x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00
mask \xff\xff\xff\xff\xff\xff\xff\x00\xfe\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff
|