Kaspersky Antivirus is not working after virus database update

Symptoms

• After the recent update of Kaspersky's virus database it does not scan incoming email.

• Plesk administrator receives mail notification with the following content:

  Dear User,
  
  A message with the following attributes cannot be scanned for viruses due an error:
  
  Sender = j.doe@example.com (may be forged)
  
  Recipients = info@domain.tld
   
  Subject = [#115869]: Error
   
  Message-ID = <a99f5990db88a0fa8a8dab15044d062b@support.example.com> 
  

• The following can be found in /var/log/maillog :

  kav-handler[20325]: Evt: 1, p1= 2147746397, p2 = 0, obj = Memory region 1, virus = (null)
   
  kav-handler[20325]: Evt: 32, p1= 4, p2 = 0, obj = Memory region 1, virus = (null)
   
  kav-handler[20325]: Message from j.doe@example.com is non scanned 
  

Cause

Bug PPPM-6041 - Incorrect Kaspersky license key has been retrieved during the Daily Task.

Resolution

Go to: Tools and Settings > License Management > Additional License Keys > KAV.XXXXXXXX.XXXX > Retrieve Additional Key

OR

Via command line:

# plesk php /usr/local/psa/admin/plib/scripts/kav-key-upgrade.php