It's a Cisco AnyConnect doodad, but it checks your computer for compliance first before allowing you to connect, so beyond spoofing a valid system, I'm out of luck. And I'm not about to lose my job due to spoofing a windows box, haha.
I don't necessarily miss it, but the primary reason I can't use Linux as a daily driver at work is because our VPN doesn't work on Linux. So I'd say that. Stupid as fuck that our IT department uses Linux for all of our servers but makes us run Windows.
Which is why men have nipples