Freshclam is Using Lots of Mobile Data

For the past two days, my data usage has increased even though I did nothing more than normal data surfing. I installed nethogs and found this application (/usr/bin/freshclam) drinking my data ridiculously. Can anyone help me with this? What is this and how can I completely remove it?

One more thing I wonder If any application can upload my documents data to its server without my permission (it would be a nightmare).

Freshclam is the clamav database updater. You can reduce the amount of times that it goes out and updates the clamav database anywhere from 0 times a day (no updates) to however many you want. 12 times a day means once every 2 hours. Right now, it is probably set to 24 times (once per hour).

To set it run:

sudo dpkg-reconfigure clamav-freshclam

You can also set freshclam to a manual update by setting the Virus database update method: on the second screen of sudo dpkg-reconfigure clamav-freshclam to manual.

After the above is set, then simply run sudo freshclam to update:

$ sudo freshclam
Mon Jan 20 17:16:09 2020 -> ClamAV update process started at Mon Jan 20 17:16:09 2020
Mon Jan 20 17:16:09 2020 -> daily.cld database is up to date (version: 25701, sigs: 2150284, f-level: 63, builder: raynman)
Mon Jan 20 17:16:09 2020 -> main.cld database is up to date (version: 59, sigs: 4564902, f-level: 60, builder: sigmgr)
Mon Jan 20 17:16:09 2020 -> bytecode.cvd database is up to date (version: 331, sigs: 94, f-level: 63, builder: anvilleg)

Hope this helps!