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What I Do Not Cover

I do not cover Trojan horse programs or backdoors in great length. This book is primarily about self-replicating malicious code. There are plenty of great books available on regular malicious programs, but not on computer viruses.

I do not present any virus code in the book that you could directly use to build another virus. This book is not a "virus writing" class. My understanding, however, is that the bad guys already know about most of the techniques that I discuss in this book. So, the good guys need to learn more and start to think (but not act) like a real attacker to develop their defense!

Interestingly, many universities attempt to teach computer virus research courses by offering classes on writing viruses. Would it really help if a student could write a virus to infect millions of systems around the world? Will such students know more about how to develop defense better? Simply, the answer is no…

Instead, classes should focus on the analysis of existing malicious threats. There are so many threats out there waiting for somebody to understand themand do something against them.

Of course, the knowledge of computer viruses is like the "Force" in Star Wars. Depending on the user of the "Force," the knowledge can turn to good or evil. I cannot force you to stay away from the "Dark Side," but I urge you to do so.

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