I have exactly the same problem. Norton too, same file got removed, same "file insight" message,
I am running on Windows 7 and over Steam and am looking for help too.
Updating Game Norton blocks file lwjgl.dll Threat Name: Suspicious.Cloud
It's your anti-virus company trying to employ scare tactics on you. If you read the description it says a file got mutated (scary word for updated) and that no signature was found (fancy way to say they found nothing and are just trying to scare you).
Updater used update. Har
Stop getting randomly scared by your AV company and learn what these messages mean.
Yeah, my Anti-Malware-Programm says same & blocked it!
Any answer from an Admin? ...
Anti-virus used scare users about an app update. It was super effective!
"My anti virus app is warning me about something updating itself omgwtfbbq OOO fix this"
The alert is a false positive, we aren't distributing malicious files with Spiral Knights. The lwjgl.dll is a critical component that is required for Spiral Knights to run.
There will be an update shorty to resolve the problem. In the short term you can set your antivirus program to ignore or exclude the file. For most Steam users it will be located in the C:\Program Files (x86)\Steam\steamapps\common\Spiral Knights\native folder.
What about the people who downloaded the client from the website itself? How do we launch SK?
Only difference is I'm using Symantec Endpoint Protection same file though