of course yes. You can install Anti-virus. Most of the popular AV companies have released their versions for Linux OS also. Any AV that is compatible with Ubuntu will easily get installed on Enjay Tiguin OS. You may contact Enjay Team to help you with this.

However, there are few points to be noted on this issue:

  1. Linux OS is inherently much more secured as compared to windows. 
  2. There are far less Viruses which attack Linux OS (Example the most popular Virus called Locky can run only on windows not on any other OS).
  3. Further, at Enjay we have made a huge effort to further secure and harden the OS.

So, you don't need to worry about installing Anti-Virus, However if you want to install - you can install any brand of AV available in the market.