bcv-vf/plugins/java/ExampleStringDecrypter.java
2022-01-22 13:02:24 -06:00

64 lines
2.6 KiB
Java

import java.lang.reflect.Field;
import java.util.List;
import org.objectweb.asm.tree.ClassNode;
import org.objectweb.asm.tree.FieldNode;
import the.bytecode.club.bytecodeviewer.api.*;
import the.bytecode.club.bytecodeviewer.gui.components.MultipleChoiceDialog;
import static the.bytecode.club.bytecodeviewer.Constants.nl;
/**
* This is an example of a string decrypter plugin
*/
public class ExampleStringDecrypter extends Plugin {
@Override
public void execute(List<ClassNode> classNodesList) {
PluginConsole gui = new PluginConsole("Example String Decrypter Java Edition");
MultipleChoiceDialog dialog = new MultipleChoiceDialog("Bytecode Viewer - WARNING",
"WARNING: This will load the classes into the JVM and execute the initialize function"
+ nl + "for each class. IF THE FILE YOU'RE LOADING IS MALICIOUS, DO NOT CONTINUE.",
new String[]{"Continue", "Cancel"});
if (dialog.promptChoice() == 0) {
boolean needsWarning = false;
for (ClassNode cn : classNodesList) {
//load the class node into the classloader
BCV.getClassNodeLoader().addClass(cn);
for (Object o : cn.fields.toArray()) {
FieldNode f = (FieldNode) o;
//if the class contains the field z, get the class object from the class node
//then print out the value of the fields inside the class
//if the strings get decrypted on init, this allows you to dump the current values
if (f.name.equals("z")) {
try {
for (Field f2 : BCV.getClassNodeLoader().nodeToClass(cn).getFields()) {
String s = (String) f2.get(null);
if (s != null && !s.isEmpty())
gui.appendText(cn + ":" + s);
}
} catch (Exception e) {
gui.appendText("Failed loading class " + cn.name);
e.printStackTrace();
needsWarning = true;
}
}
}
}
if (needsWarning) {
BytecodeViewer.showMessage("Some classes failed to decrypt, if you'd like to decrypt all of them\n"
+ "makes sure you include ALL the libraries it requires.");
}
gui.setVisible(true);
}
}
}