Saat ada pesan error :

ERROR: downloadFile: Unexpected response (403) from https://database.clamav.net/daily-26440.cdiff
ERROR: getpatch: Can't download daily-26440.cdiff from https://database.clamav.net/daily-26440.cdiff
ERROR: downloadFile: Unexpected response (403) from https://database.clamav.net/daily.cvd
ERROR: getcvd: Can't download daily.cvd from https://database.clamav.net/daily.cvd
ERROR: Update failed for database: daily
ERROR: Database update process failed: HTTP GET failed (11)
ERROR: Update failed.

Kemungkinan ClamAV membutuhkan update.
Berikut beberapa langkah yang bisa dilakukan untuk update ClamAV

Debian

$ apt update
$ apt upgrade clamav

Centos

$ yum update clamav

Setelah update ClamAV, update database

$ freshclam
ClamAV update process started at Wed Feb 2 10:24:33 2022
daily database available for update (local version: 26439, remote version: 26440)
Current database is 1 version behind.
Downloading database patch # 26440…
Time: 0.2s, ETA: 0.0s [=============================>] 14.13KiB/14.13KiB
Testing database: ‘/var/lib/clamav/tmp.b7d0e4b52b/clamav-3a8a649f76dca0722c7acef0385a1cc2.tmp-daily.cld’ …
Database test passed.
daily.cld updated (version: 26440, sigs: 1973273, f-level: 90, builder: raynman)
main database available for download (remote version: 62)
Time: 2m 04s, ETA: 0.0s [=============================>] 162.58MiB/162.58MiB
Testing database: ‘/var/lib/clamav/tmp.b7d0e4b52b/clamav-a0387032c1bad0a864db82c1039625eb.tmp-main.cvd’ …
Database test passed.
main.cvd updated (version: 62, sigs: 6647427, f-level: 90, builder: sigmgr)
bytecode.cld database is up-to-date (version: 333, sigs: 92, f-level: 63, builder: awillia2)