antinfinait Posted March 20, 2019 Share Posted March 20, 2019 HELLO Hak5 COMMUNITY! This is my first thread. I have written a program that exfiltrates files over audio waves. Technical information: ======================= Protocol : AFSK1200 x25 packet radio Fire-And-Forget mod Baud rate: 1200bps stable(0.15 KBytes/second, 10 kilobytes/minute) Language : C# .NET 3.5 ======================= I have written this for the [Payload] segment of Hak5. As i am too poor to buy a rubber ducky[not kidding] ,it would be cool if someone would make a rubber ducky payload out of this. I am dreaming of a rubber ducky... This program takes as input a file, [binary data of any kind] and convert it to a .wav file, that would be then played, and the audio output would be recorded with a smartphone.Then, it takes a .wav input and converts it to a file [only supports utf8 ATM, if you plan on decoding other binary data, use minimodem or one of the tens of other FSK decoders out there]. THIS IS JUST A PoC script ! It proves that the concept of stealing files over audio is possible! Source Code Download for pre-build binary [merged and not obfuscated] : HERE Obfuscated assembly : HERE Hope you like it! 1 Quote Link to comment Share on other sites More sharing options...
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