Be careful when you have ears: The project code for stealing target information using electromagnetic radiation is open-source

Be careful when you have ears: The project code for stealing target information using electromagnetic radiation is open-source

 
Recently, a computer technical expert William Entriken invented a new method that allows computers to send wireless signals.
New Method
William Entriken creates a C library that allows computers to transmit wireless signals even if there is no wireless signal transmission device on the computer. This program is called "System Bus Radio", which is written in C language. Program Code allows the central processor in the computer to emit a certain frequency of electromagnetic radiation (electromagnetic radiation ).
The radiation signal of this frequency can escape the shielding range of the Computer shell, and can process the data in the computer accurately and at the right time of the CPU. At the same time, it can be disguised as a normal wireless signal, transmit information from the target computer. During the test, Entriken said that it Had transmitted a song "Mary Had a Little Lamb". If the computer and the receiving antenna are separated by a wall, the distance would be 2 meters. Later, Entriken made a test with his Sony STR-K670P. He used a remote control to adjust the standard AM broadcast bandwidth to 1580 kHz, in the experiment, we found that the frequency is constantly changing as the distance between the target and the received antenna changes. In an interview with Softpedia, Entriken said:
"No one has tried a feasible solution for this project-oriented antenna, which can theoretically reach three times the distance ."
The researchers involved in the project said they have not yet tried to zoom in and receive signals, and the devices we are currently using are very cheap. If we use some good devices, we can certainly get better experimental results. Different computers send different radiation signals. So far, each computer may have different signals.
Procedures disclosed
Currently, System Bus Radio is only stuck between theory and practice. Once some technical details and algorithm problems are solved, it may be the most complex attack method. Some time ago researchers at Tel Aviv University in Israel and the Israeli Polytechnic Institute designed a method to steal computer data, and the entire attack device used for the experiment costs about $3000. It mainly refers to the electromagnetic waves emitted by the attack target. Malicious attackers can steal the decryption keys of computers in adjacent rooms within a few seconds.
If you are interested, you can now get the System Bus Radio program from the Internet (Click me) and test the project on your computer.
Electromagnetic radiation
Electromagnetic waves produced by the interaction between the electric field and the magnetic field. electromagnetic waves are emitted or leaked into the air, which is called electromagnetic radiation. At the same time, electromagnetic radiation is invisible. Electromagnetic radiation is composed of the electrical and magnetic energy transferred by space, which is produced by the moving of charge. For example, the mobile charge from the RF antenna that is transmitting signals will generate electromagnetic energy. Electromagnetic "spectrum" includes various electromagnetic radiation, from extremely low frequency electromagnetic radiation to extremely high frequency electromagnetic radiation. There are also radio waves, microwave, infrared, visible light and ultraviolet light. The definition of RF in the electromagnetic spectrum refers to the radiation with a frequency of about 3 kHz to 300 gekhon.