February 2012
Intermediate to advanced
800 pages
23h 55m
English
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Modifying Program Execution in Practice
The last example in this chapter comes from a real virus that performed differently depending on the language settings of the computer infected. If the language setting was simplified Chinese, the virus uninstalled itself from the machine and caused no damage. If the language setting was English, it displayed a pop-up with a poorly translated message saying, “You luck’s so good.” If the language setting was Japanese or Indonesian, the virus overwrote the hard drive with garbage data in an effort to destroy the computer. Let’s see how we could analyze what this program would do on a Japanese system without actually changing our language settings.
Listing 8-7 shows the assembly code for differentiating between ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.