Problem:<span>JVM</span>(rev, 25 points)"Bytecodes everywhere, reverse them."Attachmentrev25_3100aa76fca4432f.zipSolution:In the zip file there was a .class file. It can be immediately recognized that this is a Java .class file (the name of the challenge "JVM" is also a hint as it stands for "Java Virtual Machine"), and while the .class file is just the binary, Java (like C# or VB.NET) can easily be decompiled because of how highly detailed the bytecode is. Pop this into a decompiler such as http://www.javadecompilers.com/, and we'll get the following source:public class EKO {    public static void main(String[] arrstring) {        int n = 0;        for (int i = 0; i < 1337; ++i) {            n += i;        }        String string = "EKO{" + n + "}";    }}If we run the source, we'll get our flag.<span>Flag: EKO{893116}</span>