/usr/share/aqbanking/backends/ is in libaqbanking-data 5.3.5beta-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/aqbanking/backends/aqebics/
/usr/share/aqbanking/backends/aqebics/dialogs/
/usr/share/aqbanking/backends/aqebics/dialogs/dlg_edituser.dlg
/usr/share/aqbanking/backends/aqebics/dialogs/dlg_newkeyfile.dlg
/usr/share/aqbanking/backends/aqebics/dialogs/dlg_user_special.dlg
/usr/share/aqbanking/backends/aqhbci/
/usr/share/aqbanking/backends/aqhbci/dialogs/
/usr/share/aqbanking/backends/aqhbci/dialogs/chipcard.png
/usr/share/aqbanking/backends/aqhbci/dialogs/dlg_choose_usertype.dlg
/usr/share/aqbanking/backends/aqhbci/dialogs/dlg_ddvcard.dlg
/usr/share/aqbanking/backends/aqhbci/dialogs/dlg_ddvcard_special.dlg
/usr/share/aqbanking/backends/aqhbci/dialogs/dlg_editaccount.dlg
/usr/share/aqbanking/backends/aqhbci/dialogs/dlg_edituserddv.dlg
/usr/share/aqbanking/backends/aqhbci/dialogs/dlg_edituserpintan.dlg
/usr/share/aqbanking/backends/aqhbci/dialogs/dlg_edituserrdh.dlg
/usr/share/aqbanking/backends/aqhbci/dialogs/dlg_importkeyfile.dlg
/usr/share/aqbanking/backends/aqhbci/dialogs/dlg_newkeyfile.dlg
/usr/share/aqbanking/backends/aqhbci/dialogs/dlg_newuser.dlg
/usr/share/aqbanking/backends/aqhbci/dialogs/dlg_pintan.dlg
/usr/share/aqbanking/backends/aqhbci/dialogs/dlg_pintan_special.dlg
/usr/share/aqbanking/backends/aqhbci/dialogs/dlg_rdh_special.dlg
/usr/share/aqbanking/backends/aqhbci/dialogs/keyfile.png
/usr/share/aqbanking/backends/aqhbci/dialogs/pintan.png
/usr/share/aqbanking/backends/aqhbci/hbci.xml
/usr/share/aqbanking/backends/aqofxconnect/
/usr/share/aqbanking/backends/aqofxconnect/dialogs/
/usr/share/aqbanking/backends/aqofxconnect/dialogs/dlg_edituser.dlg
/usr/share/aqbanking/backends/aqofxconnect/dialogs/dlg_getinst.dlg
/usr/share/aqbanking/backends/aqofxconnect/dialogs/dlg_newuser.dlg
/usr/share/aqbanking/backends/aqofxconnect/dialogs/dlg_ofx_special.dlg