SkyVPN - Really a C2 threat?

[djr]

Hi, I have just spotted a treat alert of SkyVPN C2 traffic (ID 18871) in my logs and looked at the entry on the Threat Vault.  This seems to be quite an old detection but when I looked around for any further information regarding SkyVPN, I couldn't see anything referring to it as a known threat; just a cheap domestic VPN.

Does anyone have any knowledge of this as a threat?

Thanks

David