Ph0wn aliens have abducted my smart toothbrush. My toothbrush has hidden this horrible episode far in its subconscious mind, but I know encrypted memories of the event are still there… My psychiatrist tells me I need to get my toothbrush talk, that it will help it heal.

To do so, the psychiatrist advises, as a first step, to find the decryption key to those events. This key is hidden within the official Android application Beam_v1.3.3_apkpure.com.apk (sha256: df8956a138a05230fb26be27a22dc767775b55b1d2250be25aa899c8bbee53b9).

My psychiatrist provides the following information:

The toothbrush uses Bluetooth Low Energy to communicate. It is useless to understand the entire application. You should concentrate on what handles toothbrush events. The class for those events is called BrushEvent. Is my toothbrush really smart? Important :

In this stage, you do not need the smart toothbrush. Do not try to install the Android application on your smartphone: it is not malicious but it requires a client login (which you don’t have) to operate, so it will be useless to run it… Please do not connect to the toothbrush via Bluetooth, it may cause service disruptions for stage 2. And it won’t help for stage 1. Actually, if you don’t need Bluetooth on your smartphone or laptop, we recommend you disable it. For this stage, you need to flag ph0wn{hexstring of encryption key}. The encryption key is required to complete stage 2. Author: cryptax