/usr/share/aide/config/aide/aide.conf.d/31_aide_apt_frqchg is in aide-common 0.16~a2.git20130520-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | # this has been replaced by the scripted rule file 31_aide_apt
# this file can be removed
|