How Lei Jun’s 1992 Virus Detection Expert System Predated Modern Security Techniques

Lei Jun was among the first generation of Chinese IT programmers, entering the industry earlier than many other internet leaders.

During his university years he showed a strong talent for computing, spending long hours in the lab coding and developing software.

Recently, a 1992 paper he authored, titled “Principles and Design of a Computer Virus Identification Expert System,” was made public, confirming his early expertise in the field.

The paper describes the principles and concrete design of an expert system for identifying computer viruses, addressing the problem of detecting prevalent malware with higher accuracy and broader applicability than traditional methods.

Its conclusion claims that the intelligent identification method has significant practical value, offering high accuracy, wide applicability, and the ability to evolve and expand—features that were not mentioned in any domestic or foreign literature at the time.

This forward‑thinking approach not only showcases Lei Jun’s innovative mindset but also provides a reference point for the development of modern security technologies.

The exposure of the paper has sparked renewed admiration for Lei Jun’s visionary thinking and innovative capabilities.

According to public sources, the paper has been incorporated into university textbooks and is now part of computer‑science curricula.

Beyond the paper, Lei Jun co‑authored the book “Deep DOS Programming” in 1992 and, over the next two years, created encryption software, antivirus tools, financial applications, CAD programs, Chinese operating systems, and various utility tools.

He graduated from Wuhan University’s Computer Science department in 1987 and joined Kingsoft in early 1992, later serving as manager of the Beijing development department, vice‑president of the Zhuhai branch, and general manager of Beijing Kingsoft Software.