/*
* raptor_frida_android_trace.js - Code tracer for Android
* Copyright (c) 2017 Marco Ivaldi <[email protected]>
*
* Frida.re JS script to trace arbitrary Java Methods and
* Module functions for debugging and reverse engineering.
* See https://www.frida.re/ and https://codeshare.frida.re/
* for further information on this powerful tool.
*
* "We want to help others achieve interop through reverse
* engineering" -- @oleavr
*
* Many thanks to @inode-, @federicodotta, @leonjza, and
* @dankluev.
*
* Example usage:
* # frida -U -f com.target.app -l raptor_frida_android_trace.js --no-pause
*
* Get the latest version at:
* https://github.com/0xdea/frida-scripts/
*/
var logContentArray = new Array();
var singlePrefix = "|----"
// generic trace
function trace(pattern)
{
// indexOf() 方法可返回某個指定的字符串值在字符串中首次出現的位置,未出現則返回-1
var type = (pattern.toString().indexOf("!") === -1) ? "java" : "module";
if (type === "module") {
console.log("is--module")
// trace Module
var res = new ApiResolver("module");
var matches = res.enumerateMatchesSync(pattern);
var targets = uniqBy(matches, JSON.stringify);
targets.forEach(function(target) {
traceModule(target.address, target.name);
});
} else if (type === "java") {
console.log("is--java")
// trace Java Class, 遍歷加載的類，判斷追蹤的是否是類
var found = false;
Java.enumerateLoadedClasses({
onMatch: function(aClass) {
// console.log("is--java--1--"+aClass.toString())
if (aClass.match(pattern)) {
console.log("is--java--2--"+aClass.toString())
found = true;
//match() 方法可在字符串內檢索指定的值，或找到一個或多個正則表達式的匹配。
// 該方法類似 indexOf() 和 lastIndexOf()，但是它返回指定的值，而不是字符串的位置。
var className = aClass.match(/[L](.*);/)[1].replace(/\//g, ".");
console.log('('+aClass.toString()+')-----'+className.toString());
traceClass(className);
}
},
onComplete: function() {}
});
// trace Java Method， 追蹤方法
if (!found) {
try {
console.log('trace---method---'+pattern.toString())
traceMethod(pattern);
}
catch(err) { // catch non existing classes/methods
console.error(err);
}
}
}
}
// find and trace all methods declared in a Java Class
function traceClass(targetClass)
{
var hook = Java.use(targetClass);
var methods = hook.class.getDeclaredMethods();
hook.$dispose;
var parsedMethods = [];
methods.forEach(function(method) {
parsedMethods.push(method.toString().replace(targetClass + ".", "TOKEN").match(/\sTOKEN(.*)\(/)[1]);
});
var targets = uniqBy(parsedMethods, JSON.stringify);
targets.forEach(function(targetMethod) {
traceMethod(targetClass + "." + targetMethod);
});
}
// trace a specific Java Method
function traceMethod(targetClassMethod)
{
var delim = targetClassMethod.lastIndexOf(".");
if (delim === -1) return;
// slice() 方法可提取字符串的某個部分，並以新的字符串返回被提取的部分
var targetClass = targetClassMethod.slice(0, delim)
var targetMethod = targetClassMethod.slice(delim + 1, targetClassMethod.length)
var hook = Java.use(targetClass);
var overloadCount = hook[targetMethod].overloads.length;
console.log("Tracing " + targetClassMethod + " [" + overloadCount + " overload(s)]");
for (var i = 0; i < overloadCount; i++) {
// hook方法
hook[targetMethod].overloads[i].implementation = function() {
var logContent_1 = "entered--"+targetClassMethod;
var prefixStr = gainLogPrefix(logContentArray);
logContentArray.push(prefixStr + logContent_1);
console.warn(prefixStr + logContent_1);
// print backtrace, 打印調用堆棧
// Java.perform(function() {
// var bt = Java.use("android.util.Log").getStackTraceString(Java.use("java.lang.Exception").$new());
// console.log(prefixStr +"Backtrace:" + bt);
// });
// print args
// if (arguments.length) console.log();
// 打印參數
for (var j = 0; j < arguments.length; j++)
{
var tmpLogStr = prefixStr + "arg[" + j + "]: " + arguments[j];
console.log(tmpLogStr);
logContentArray.push(tmpLogStr);
}
// print retval
var retval = this[targetMethod].apply(this, arguments); // rare crash (Frida bug?)
// 打印返回值
// console.log("\n"+ targetClassMethod +"--retval: " + retval);
var tmpReturnStr = prefixStr + "retval: " + retval;
logContentArray.push(tmpReturnStr);
console.log(tmpReturnStr);
//結束標誌
var logContent_ex = "exiting--" + targetClassMethod;
logContentArray.push(prefixStr + logContent_ex);
console.warn(prefixStr + logContent_ex);
return retval;
}
}
}
// 獲取打印前綴
function gainLogPrefix(theArray)
{
var lastIndex = theArray.length - 1;
if (lastIndex<0)
{
return singlePrefix;
}
for (var i = lastIndex; i >= 0; i--)
{
var tmpLogContent = theArray[i];
var cIndex = tmpLogContent.indexOf("entered--");
if ( cIndex == -1)
{
var cIndex2 = tmpLogContent.indexOf("exiting--");
if ( cIndex2 == -1)
{
continue;
}
else
{
//與上個方法平級
var resultStr = tmpLogContent.slice(0,cIndex2);
return resultStr;
}
}
else
{
//在上個方法的內部
var resultStr = singlePrefix + tmpLogContent.slice(0,cIndex);//replace(/entered--/, "");
// console.log("("+tmpLogContent+")前綴是：("+resultStr+")");
return resultStr;
}
}
return "";
}
// 獲取打印前綴
function gainLogPrefix_Module(theArray,status)
{
var lastIndex = theArray.length - 1;
if (lastIndex<0)
{
return singlePrefix;
}
for (var i = lastIndex; i >= 0; i--)
{
var tmpLogContent = theArray[i];
var cIndex = tmpLogContent.indexOf("entered--");
if ( cIndex == -1)
{
var cIndex2 = tmpLogContent.indexOf("exiting--");
if ( cIndex2 == -1)
{
continue;
}
else
{
//與上個方法平級
var resultStr = tmpLogContent.slice(0,cIndex2);
return resultStr;
}
}
else
{
if (tmpLogContent.indexOf(status)==-1)
{
//與上一條輸出 平級
var resultStr = tmpLogContent.slice(0,cIndex);//replace(/entered--/, "");
// console.log("("+tmpLogContent+")前綴是：("+resultStr+")");
return resultStr;
}
else
{
//在上個方法的內部
var resultStr = singlePrefix + tmpLogContent.slice(0,cIndex);//replace(/entered--/, "");
// console.log("("+tmpLogContent+")前綴是：("+resultStr+")");
return resultStr;
}
}
}
return "";
}
// trace Module functions
function traceModule(impl, name)
{
console.log("Tracing " + name);
Interceptor.attach(impl, {
onEnter: function(args) {
// debug only the intended calls
this.flag = false;
// var filename = Memory.readCString(ptr(args[0]));
// if (filename.indexOf("XYZ") === -1 && filename.indexOf("ZYX") === -1) // exclusion list
// if (filename.indexOf("my.interesting.file") !== -1) // inclusion list
this.flag = true;
if (this.flag) {
var prefixStr = gainLogPrefix_Module(logContentArray,"entered--");
// console.warn("\n*** entered " + name);
var logContent_1 = "entered--"+name;
logContentArray.push(prefixStr + logContent_1);
console.warn(prefixStr + logContent_1);
// print backtrace， 打印調用堆棧
// console.log("\nBacktrace:\n" + Thread.backtrace(this.context, Backtracer.ACCURATE).map(DebugSymbol.fromAddress).join("\n"));
}
},
onLeave: function(retval) {
if (this.flag) {
var prefixStr = gainLogPrefix_Module(logContentArray,"non6soidjs3kejf6sle8ifsjie");
// print retval
// console.log("\nretval: " + retval);
var logContent_1 = "retval:"+retval;
logContentArray.push(prefixStr + logContent_1);
console.warn(prefixStr + logContent_1);
var logContent_2 = "exiting--"+name;
logContentArray.push(prefixStr + logContent_2);
console.warn(prefixStr + logContent_2);
// console.warn("\n*** exiting " + name);
}
}
});
}
// remove duplicates from array
function uniqBy(array, key)
{
var seen = {};
return array.filter(function(item) {
var k = key(item);
return seen.hasOwnProperty(k) ? false : (seen[k] = true);
});
}
// usage examples
setTimeout(function() { // avoid java.lang.ClassNotFoundException
Java.perform(function() {
trace("com.test.xxxxx.MainActivity");
});
}, 0);
frida trace
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