/etc/Crack/rules.weird is in crack-common 5.0a-9.3.
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 14 15 16 | !?A/?v@?v>3
/?p@?p>3
/?w@?w>3
^($)
c$!
c$.
c$?
cf
cr
rc
<*u$!
<*u$.
<*u$?
ud
uf
ur
|