Unexpected response received: ClamAV

Products

• CAS-S500
• CAS-S400
• CAS-S200
• CAS-VA

Issue/Introduction

Since the upgrade CAS to version 3.1.3.2, the following error message appears in the cas log file every second:

ERROR: ClamModule::ParseVersion: unexpected response received: ClamAV 0.103.3

There is also problem with download ClamAV engine and pattern data base. 

Environment

CAS Version 3.1.3.2

Cause

The problem is caused by blocked access to external ClamAV`s servers. 

WARNING: Failed to get daily database version information from server: https://database.clamav.net
ERROR: check_for_new_database_version: Failed to find daily database using server https://database.clamav.net.

Resolution

ClamAV data base and engine are being download from external servers, as well as other Antivirus. Content Analysis must have full access to following URL:

https://database.clamav.net
https://current.cvd.clamav.net