Kaspersky Anti-Virus 6.0 R2 for Windows Workstations


How Kaspersky Lab products version 6.0/7.0/2009/2010/2011 work with third party Firewalls

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2012 Aug 24 ID: 710


Applies to Kaspersky Anti-Virus 6.0 for Windows Workstations (all builds)

WarningThis article is relevant only if the Anti-Hacker (firewall) component has not been installed along with KAspersky Anti-Virus. 

The following problems may occur when a Kaspersky Lab product works with a firewall of another vendor:

  • cannot send / receive e-mails 
  • internet pages are not (fully) loaded
  • computer disconnects from Internet either immediately or soon after establishing a connection

The reason is that Kaspersky Lab applications are functioning in server mode. They re-route all the Internet and e-mail traffic to itself in order to scan it and establish Internet connection with server. It is necessary to have correctly configured rules for the service AVP.EXE in the firewall.

  • If the installed firewall has a learning mode, enable it. If the AVP.EXE service tries to establish connection, the firewall should inform the user about it. Allow any network activity to the service AVP.EXE. 
  • If the installed firewall does not have a teaching mode, create permissive rules for the AVP.EXE process manually for the following system ports:
    • Port of the AVP.EXE process: 1110
    • Standard HTTP ports: 80, 81, 82, 83, 1080, 7900, 8080, 8088, 3128, 11523 
    • Standard SMTP port: 25 
    • Standard POP3 port: 110 
    • Standard NNTP port: 119 
    • Standard IMAP port: 143
    • Local port: 19780 

InformationIf port 1110 is closed, the process AVP.EXE will start trying all other ports within the 1110 - 2110 range unitl it manages to find an open one.

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