Android WiFi Jammer



For less than $10, you can have an Android WiFI Jammer up and running. To get started, you are going to need to have the NodeMCU. It’s a WiFI development chip that’s usually used in Raspberry Pi and Arduino projects. However, the chip can also be used as a standalone device (it has its own CPU and memory) as long as you give it sufficient power. This means you can power it through another Android phone, your computer, power bank or any device that’s capable of supplying power over USB.  Did I mention that it’s only $9 on Amazon? As for the actual penetration testing, you will need to flash firmware to the device.

Jamming WiFi networks is illegal!! This is only intended to be used for security testing on your own WiFi network.

What You Will Need:

Flash Firmware

Begin by connecting the NodeMCU to your computer via USB. Don’t worry, your computer will probably not recognize the device. Then download the firmware (esp8266_deauther_1mb.bin) from the link above. Make sure you download the latest release by the developer. Afterward, download the NodeMCU flasher. In the flasher, go to the config tab and select the bin that you downloaded earlier as the firmware to use. Then hit flash to start the process, it should take about a minute. Once it’s done you are ready to use the device.

nodemcu flasher

Afterward, download the NodeMCU flasher. When you launch the flasher it should detect the COM port that the NodeMCU is connected to.

nodemcu flasher bin

Then go to the config tab and select the bin that you downloaded earlier as the firmware to use. Then hit flash to start the process, it should take about a minute. Once it’s done you are ready to use the device.

Using the NodeMCU

To use the NodeMCU, connect it to any power source. This could be your computer, another Android phone, etc. You should see a blinking blue light. Now to access the interface, you will need to connect to the local area network it creates. Using my Android phone, I connected to the network named pwned. The default password for the network is deauther. Keep in mind, this is only a local connection so you will not get access to the internet. Once you are connected, open your browser and navigate to 192.168.4.1 You should see a warning screen, make sure you understand and accept the terms. From this point, you’re on your own to do what you want.