Blacklisted with Netgear Prosafe VPN Firewall FVS318v3

Ok, to me it seems that the issue has nothing to do with Netgear Prosafe VPN Firewall. Your issue is to simply clean the trojan, am I correct?

You really have to touch each of the 36 (30 PC + 6 Servers) pc one by one. But start with the machines first since trojans get in from the workstations. Nobody browses the internet from the servers, but don't assume your servers are 100% clean, just do it at the end if you don't find anything.

Now, besides the generic cleaning there is something more advanced you can do. This depends on your switch. If you have a managed switch there is a feature that does port mirroring. (let me know if you need me to elaborate on that). If you don't have a managed switch then use a HUB temporarily. Here is why I'm telling you all this; there is a piece of software out there called packet sniffers and they inspect network traffic. You can use those to inspect all the traffic that is coming in and going out of your network.

and the reason why you need a hub with these software is because a HUB sends out all the traffic to all the ports, but a regular switch does not. And when you have the packet sniffer application you capture all that traffic while connected to one of the ports on the hub. and the expensive managed switch can do that if you know how to set it up. You can make only one of the ports mirror. Meaning that the port that is connected to the router will be mirrored to the port you are on so everything that is about to leave your switch will be copied to your pc before leaving (hence the word Mirroring comes into play)

Finally here is a list of popular FREE packet sniffers:
Wireshark
Microsoft Network Monitor
and finally Packetyzer

all 3 of them are free, but Wireshark is the most popular and is the industry standard. I personally usu the
microsoft one simply because of the interface. I don't know I like the way it looks. Packetyzer is also nice. It's up to you.

Let me know if you need more help

I have a DELL PowerConnect 2748, that has port mirroring. Yes, if you would, please elaborate as to how I would set up a packet sniffer. However, I have set up a syslog server that is broadcasting all traffic for me from my firewall, is this not the same thing?

Hum.... I've never heard of that. Why and how would a syslog server broadcast all the traffic? Syslog server is used for logs. I'm confused. I don't think we are on the same page. Tell me more as far as what's going on and what you've been doing.