Match and Replace - PathTraversal and User Agent changing
Path traversal changing the {FILE} token, for the file that you want.
In this case: {FILE} by etc/passwd
If you want, you can also change or add any field in the request.
For example, we will change for all requests, the browser used, for the Android.
User-Agent.*
User-Agent: Mozilla/5.0 (Linux; U; Android 2.2; en-us; Droid Build/FRG22D) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1
More info at:
* https://github.com/wagiro/BurpBounty
* https://twitter.com/BountyBurp