/usr/share/kde4/apps/konqsidebartng/virtual_folders/ is in konqueror 4:4.8.2-0ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/kde4/apps/konqsidebartng/virtual_folders/remote/
/usr/share/kde4/apps/konqsidebartng/virtual_folders/remote/.directory
/usr/share/kde4/apps/konqsidebartng/virtual_folders/remote/ftp/
/usr/share/kde4/apps/konqsidebartng/virtual_folders/remote/ftp/.directory
/usr/share/kde4/apps/konqsidebartng/virtual_folders/remote/ftp/kde_ftp.desktop
/usr/share/kde4/apps/konqsidebartng/virtual_folders/remote/web/
/usr/share/kde4/apps/konqsidebartng/virtual_folders/remote/web/.directory
/usr/share/kde4/apps/konqsidebartng/virtual_folders/remote/web/apps_web.desktop
/usr/share/kde4/apps/konqsidebartng/virtual_folders/remote/web/dot_web.desktop
/usr/share/kde4/apps/konqsidebartng/virtual_folders/remote/web/kde_web.desktop
/usr/share/kde4/apps/konqsidebartng/virtual_folders/remote/web/look_web.desktop
/usr/share/kde4/apps/konqsidebartng/virtual_folders/services/
/usr/share/kde4/apps/konqsidebartng/virtual_folders/services/.directory
/usr/share/kde4/apps/konqsidebartng/virtual_folders/services/applications.desktop