Prerequisites

• Burp suite
• Android SDK platform-tools (adb)
• gmsaas tool (https://docs.genymotion.com/gmsaas/1.x/)

Setting up Burp Suite

Go to the proxy tab then the options tab. Add a new listener on all interfaces on whatever port you'd like, we will choose 8080:

Click import/export CA certificate --> Export --> Certificate in DER format --> Choose a path and name it anything with a .cer extension --> Next

Setup the Genymotion SaaS virtual device

1. Spin up your device and connect it to ADB with gmsaas. Please refer to gmsaas user guide for detailed instructions.
2. Configure the virtual device proxy using the web device interface (Proxy hostname: localhost, Proxy port: 3333 or any other available port), or with ADB. Here we use ADB to set port 3333 but you can use any other port as long as it is available:
   

   adb shell settings put global http_proxy localhost:3333

3. Bind Burp proxy to the device proxy configuration using command. We setup Burp suite to use port 8080, so we will bind the device pxoxy to this port:
   

   adb reverse tcp:3333 tcp:8080

4. Either drag'n drop the .cer file to the instance display or use the file upload widget (see File-upload feature). The certificate file will be stored in the /sdcard/Download folder.
5. Go to Settings and search Security & Location. Click it, then click Encryption & credentials. Now click Install from SD card and go to /sdcard/Download, where you saved your .cer file. Give the certificate a name:
   
   Then, click ok. You are greeted with a screen asking you to set up a passcode. Comply and set a lock to secure the lock screen:
   

From there, your instance network should be intercepted by Burp suite.