Strange characters when using ls

[carroarmato0]

I noticed recently that in all directories where I use the ls command, these strange characters appear.
Any idea what this is? Feels like something getting corrupted.

root@turris:~# ls -hal
-rw-r--r--    1 root     root           0 Jul  6 23:59 ?�?@@@a�
drwxr-xr-x    1 root     root          90 Jul 28 17:45 .
drwxr-xr-x    1 root     root         148 Jul 28 17:40 ..
drwxr-xr-x    1 root     root          16 Feb  3 13:18 .cache
drwx------    1 root     root           8 Jan 22  2020 .config
drwx------    1 root     root          22 Jan 24  2020 .ssh
-rw-------    1 root     root       16.8K Jul 28 00:58 .viminfo
-rw-r--r--    1 root     root         266 Jul 28 00:23 .wget-hsts
drwxr-xr-x    1 root     root           6 Feb  3 13:18 go
root@turris:~# cd /srv
root@turris:/srv# ls
?�?@@@a�    dev-detect  log         lxc         pakon       rrd         tftp        vnstat
root@turris:/srv# ls -hal
-rw-r--r--    1 root     root           0 Feb  3 13:06 ?�?@@@a�
drwxr-xr-x    1 root     root          84 Jul 28 18:35 .
drwxr-xr-x    1 root     root         148 Jul 28 17:40 ..
drwxr-xr-x    1 root     root          26 Jul 28 01:10 dev-detect
drwx------    1 root     root          88 Jul 27 22:12 log
drwxr-xr-x    1 root     root           8 Dec  3  2020 lxc
drwxr-xr-x    1 root     root          88 Jan 30  2020 pakon
drwxr-xr-x    1 root     root          12 May 23 18:08 rrd
drwxr-xr-x    1 root     root          62 Nov 25  2020 tftp
drwxr-xr-x    1 root     root          44 Jun 25  2020 vnstat

[lucenera]

What operating system are you using on the device you use to connect? Which shell?

Here it works:

[carroarmato0]

The client from which I’m connecting doesn’t matter. In a terminal in Ubuntu and on Fedora shows the same problem. So it seems something filesystem related on the Turris.

[lucenera]

Tried to delete the file? It is strange that it appears in all folders. Maybe some program wrote that file at the beginning of each folder. The file name is the same in each folder and always has a size of 0. They are all with the last modification prior to the release of 5.2.4.

[carroarmato0]

Thank! Manage to delete it. I think something funky happened when playing around with Rumble. But glad it’s nothing serious.