EXE file would spread the CIH virus further, letting it nest in another program's free space inside the code, hence another one of its nicknames – Spacefiller. Upon the first activation, the CIH virus would wreak havoc by spreading through executable files. Since its beginnings in 1998, the chaotic piece of code had found itself on thousands of computers before activating on April 26, 1999, which we now know was its first trigger date. Keep reading to learn more about the CIH computer virus's attack plan and the devastating mark it left on infected machines, as we'll jump right in.Īfter infecting a computer, the CIH virus would, as mentioned, lay dormant on the infected system for an entire year. Now that we know more about the history and the creator of the CIH computer virus, we can delve deeper into how this infectious menace operates. He then started co-writing an antivirus program with another student, Weng Shi-hao, that would stop the spread of the CIH virus and remove it from infected machines. After his apprehension, Chen stated that he created the virus as a challenge, one that would prove to arrogant antivirus companies that their defenses were weak.Īfter spreading the virus at his university, Chen realized the mistake he had made, apologizing to the university for the chaos he had caused. The CIH computer virus was made by Chen Ing-hau, a coding prodigy from Taiwan and a student at Tatung University at the time. However, the first-ever trigger date was April 26, 1999, coincidentally matching the date of the 1986 Chernobyl nuclear reactor meltdown. Then, one year later, it would activate itself and wreak havoc on the computer, overwriting files and penetrating unprotected BIOS chips. Namely, when this virus first infected computers, it would lay dormant on infected systems for precisely one year. This destructive menace first appeared in 1998, and its famous nickname, the Chernobyl Virus, is closely related to its creation and trigger dates. At one point, it spread to more than 60 million worldwide computers, resulting in massive data and commercial damages. CIH virus is a computer program that overwrites critical information on infected computers, often going as far as to destroy the system's BIOS.
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