Free Flash Drivers

Good morning,

I have a Galaxy Tab S that is rooted. Yesterday morning I woke up to a Skype message tone hoping that my family had sent me a message. However, I noticed that messages were sent to few of my contacts with an attachment from my account. It is obvious that something fishy is going on. I am just not sure how bad it is. My tablet is the only device with my skype account.

I ran two antivirus software scans 1) Kaspersky - no issues detected and 2) AVG. AVG identified two warning
1) "Unsecure privilege mode detected. Your device is running in High Privilege mode (i.e., it has been rooted) we recommend using only genuine firmware"
2) Enabling USB Debuggin is not recommended unless you use your device for software development purposes.

I just rooted my device and am not using any custom ROM. I have rooted it about close 3 years now and never had any issue. With regards to the second message, I dont ever recall enabling the USB debugging and I cant even find that option to turn it off.

Can someone please let me figure it out what is going on with my situation and what are the next steps. I havent rest my accounts as it was useless cause this is the only way to access the internet. I would first solve the virus or keylogging issues (if the case) and then fix on working resetting the accounts.

I use only my office machine (which I am using it right now) to access my bank accounts or my personal emails. The tablet is mostly for Streaming apps, games, and Skype.

Any help would be greatly appreciated. Thank you for your time and advice.