There is small glitch on UDEMY With which u can DOWNLOAD ANY PAID UDEMY COURSE U WANT.
1. Go To the course you want to get access.
2. Basically on the course page just below PRICE Button you will see 3 options
START FREE PREVIEW
3. Click on START FREE PREVIEW Button.
4. You will be given 4:00 Minutes to preview the course.
Just download internet download manager and Open the course with IDM Extension enabled and INTEGRATED with your browser
Basically u ll see DOWNLOAD WITH IDM Button on every streaming video.
Before 4:00 Minutes , Just click DOWNLOAD WITH IDM button on all the training videos immediately before the time out is finished and pause them
U CAN RESUME AGAIN LATER TO DOWNLOAD WHEN U WANT
Credit :: Black hat Forum ..