Each of the Symantec AntiVirus components has a different list of services that need exceptions to work with the firewall. These services are as follows:
Symantec AntiVirus Server
Lucomserver.exe or Lucomserver_2_5.exe
it's a part of norton anti virus, i would give it access.
lucomserver_2_5 exe this asked for permission to access internet and zonealarm had no info so i searched on cnet and google and got 2 conflicting answers first cnet search gave link for xoftspy remover which says it is spyware but google search says part of Symantec Corporation live update engine. both can not be right. try these 2 searches and you will see. If anyone can give a definative answer it would be appreciated as i do not want to deny internet access to something important but at same time would be surprised if a cnet search was giving inaccurate info that would led to removing necessary live update function. please help as it is asking for internet permission every 2 minutes and at minute i am denying