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+# Billing Hack
+
+This application allows to impersonate the Google Play Billing service (com.android.vending).
+
+This is an updated version of [Billing Hack](https://github.com/dschuermann/billing-hack/blob/master/README.md) by [@domschuermann](https://twitter.com/domschuermann)
+
+## How to use
+
+1. Install Billing Hack
+2. Patch the vulnerable application to use Billing Hack instead of the Google Play Billing service
+3. Patch the vulnerable application performing the signature validation
+4. Install the modified application in your device.
+
+## References
+
+- 2013 - [Google Play In-App Billing Library Hacked](https://web.archive.org/web/20140327052928/https://sufficientlysecure.org/index.php/2013/10/29/google-play-billing-hacked/)
+- 2017 - [AbusingAndroid In-appBillingfeaturethanksto a misunderstoodintegration](https://www.securingapps.com/blog/BsidesLisbon17_AbusingAndroidInappBilling.pdf)
+- 2018 - [Get Freebies by Abusing the Android InApp Billing API](https://www.checkmarx.com/blog/abusing-android-inapp-billing-api/)
+- 2020 - [Contournement de l'API Google Play Billing](https://www.youtube.com/watch?v=OpAkXT5cZxw)
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