unidbg非反射调用demo(一)

矫情吗；* 2023-09-26 16:22 62阅读 0赞

记录学习笔记~

package com.dta.lesson2;
    
    import com.github.unidbg.AndroidEmulator;
    import com.github.unidbg.Module;
    import com.github.unidbg.arm.backend.DynarmicFactory;
    import com.github.unidbg.linux.android.AndroidEmulatorBuilder;
    import com.github.unidbg.linux.android.AndroidResolver;
    import com.github.unidbg.linux.android.dvm.DalvikModule;
    import com.github.unidbg.linux.android.dvm.DvmObject;
    import com.github.unidbg.linux.android.dvm.StringObject;
    import com.github.unidbg.linux.android.dvm.VM;
    import com.github.unidbg.linux.android.dvm.jni.ProxyDvmObject;
    import com.github.unidbg.memory.Memory;
    import com.sun.jna.Pointer;
    import net.dongliu.apk.parser.Main;
    
    import java.io.File;
    import java.util.ArrayList;
    import java.util.List;
    
    public class MainActivity {
        
        private final AndroidEmulator emulator;
        private final VM vm;
        private final Memory memory;
        private final Module module;
    
        public MainActivity(){
        
            emulator = AndroidEmulatorBuilder
                    .for32Bit()
                    //.setRootDir(new File("target/rootfs/default"))
                    //.addBackendFactory(new DynarmicFactory(true))
                    .build();
    
            memory = emulator.getMemory();
            memory.setLibraryResolver(new AndroidResolver(23));
    
            vm = emulator.createDalvikVM(new File("unidbg-android/src/test/java/com/dta/lesson2/app-debug.apk"));
    
            DalvikModule dalvikModule = vm.loadLibrary(new File("unidbg-android/src/test/java/com/dta/lesson2/libnative-lib.so"), true);
            module = dalvikModule.getModule();
    
            vm.callJNI_OnLoad(emulator,module);
        }
    
        public void callMd5(){
        
            DvmObject obj = ProxyDvmObject.createObject(vm,this);
            String data = "dta";
            DvmObject dvmObject = obj.callJniMethodObject(emulator, "md5(Ljava/lang/String;)Ljava/lang/String;", data);
            String result = (String) dvmObject.getValue();
            System.out.println("[symble] Call the so md5 function result is ==> "+ result);
        }
    
        private void call_address() {
        
            Pointer jniEnv = vm.getJNIEnv();
            DvmObject obj = ProxyDvmObject.createObject(vm,this);
            StringObject data = new StringObject(vm,"dta");
    
            List<Object> args = new ArrayList<>();
            args.add(jniEnv);
            args.add(vm.addLocalObject(obj));
            args.add(vm.addLocalObject(data));
    
            Number[] numbers = module.callFunction(emulator, 0x8E81, args.toArray());
            DvmObject<?> object = vm.getObject(numbers[0].intValue());
            String value = (String) object.getValue();
            System.out.println("[addr] Call the so md5 function result is ==> "+ value);
        }
    
        public static void main(String[] args) {
        
            long start = System.currentTimeMillis();
            MainActivity mainActivity = new MainActivity();
            System.out.println("load the vm "+( System.currentTimeMillis() - start )+ "ms");
            mainActivity.callMd5();
            mainActivity.call_address();
        }
    
    }

other

package com.r0ysue;
    
    import com.github.unidbg.AndroidEmulator;
    import com.github.unidbg.Module;
    import com.github.unidbg.linux.android.AndroidEmulatorBuilder;
    import com.github.unidbg.linux.android.AndroidResolver;
    import com.github.unidbg.linux.android.dvm.*;
    import com.github.unidbg.linux.android.dvm.jni.ProxyDvmObject;
    import com.github.unidbg.memory.Memory;
    import com.sun.jna.Pointer;
    
    import java.io.File;
    import java.util.ArrayList;
    import java.util.List;
    
    public class demo1 extends AbstractJni {
        
        private final AndroidEmulator emulator;
        private final VM vm;
        private final Memory memory;
        private final Module module;
    
    
        public demo1() {
        
            emulator = AndroidEmulatorBuilder
                    .for32Bit()
                    //.setRootDir(new File("target/rootfs/default"))
                    //.addBackendFactory(new DynarmicFactory(true))
                    .build();
    
            memory = emulator.getMemory();
            memory.setLibraryResolver(new AndroidResolver(23));
    
    //        vm = emulator.createDalvikVM(new File("unidbg-android/src/test/java/com/dta/lesson2/app-debug.apk"));
            vm = emulator.createDalvikVM(new File("unidbg-android/src/test/resources/ro/uuu.apk"));
    //        vm.setVerbose(true);
            vm.setJni(this);
    
            DalvikModule dalvikModule = vm.loadLibrary("native-lib", true);
    
            module = dalvikModule.getModule();
    
            vm.callJNI_OnLoad(emulator, module);
        }
    
        public demo1(AndroidEmulator emulator, VM vm, Memory memory, Module module) {
        
            this.emulator = emulator;
            this.vm = vm;
            this.memory = memory;
            this.module = module;
        }
    
        public void callMd5() {
        
    //        DvmObject obj = ProxyDvmObject.createObject(vm, "com/dta/lesson2/MainActivity");
            DvmObject obj = vm.resolveClass("com/dta/lesson2/MainActivity").newObject(null);
            String data = "dta";
            DvmObject dvmObject = obj.callJniMethodObject(emulator, "md5(Ljava/lang/String;)Ljava/lang/String;", data);
            String result = (String) dvmObject.getValue();
            System.out.println("[symble] Call the so md5 function result is ==> " + result);
        }
    
        private void call_address() {
        
            Pointer jniEnv = vm.getJNIEnv();
            DvmObject obj = ProxyDvmObject.createObject(vm, this);
            StringObject data = new StringObject(vm, "dta");
    
            List<Object> args = new ArrayList<>();
            args.add(jniEnv);
            args.add(vm.addLocalObject(obj));
            args.add(vm.addLocalObject(data));
    
            Number numbers = module.callFunction(emulator, 0x8E81, args.toArray());
            DvmObject<?> object = vm.getObject(numbers.intValue());
            String value = (String) object.getValue();
            System.out.println("[addr] Call the so md5 function result is ==> " + value);
        }
    
        public static void main(String[] args) {
        
            long start = System.currentTimeMillis();
            demo1 demo1 = new demo1();
            System.out.println("load the vm " + (System.currentTimeMillis() - start) + "ms");
            demo1.callMd5();
            demo1.call_address();
        }
    
    }