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frida trace

ixiaoyang8 2023-01-24 阅读 54

/*
* raptor_frida_android_trace.js - Code tracer for Android
* Copyright (c) 2017 Marco Ivaldi <raptor@0xdeadbeef.info>
*
* 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() 方法可返回某个指定的字符串值在字符串中首次出现的位置,未出现则返回-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, 遍历加载的类,判断追踪的是否是类
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() 方法可在字符串内检索指定的值,或找到一个或多个正则表达式的匹配。
// 该方法类似 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, 追踪方法
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个部分,并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, 打印调用堆栈
// 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();

// 打印参数
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);

//结束标志
var logContent_ex = "exiting--" + targetClassMethod;
logContentArray.push(prefixStr + logContent_ex);
console.warn(prefixStr + logContent_ex);


return retval;
}
}
}

// 获取打印前缀
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
{
//与上个方法平级
var resultStr = tmpLogContent.slice(0,cIndex2);
return resultStr;
}
}
else
{
//在上个方法的内部
var resultStr = singlePrefix + tmpLogContent.slice(0,cIndex);//replace(/entered--/, "");
// console.log("("+tmpLogContent+")前缀是:("+resultStr+")");
return resultStr;

}
}


return "";

}



// 获取打印前缀
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
{
//与上个方法平级
var resultStr = tmpLogContent.slice(0,cIndex2);
return resultStr;
}
}
else
{
if (tmpLogContent.indexOf(status)==-1)
{
//与上一条输出 平级
var resultStr = tmpLogContent.slice(0,cIndex);//replace(/entered--/, "");
// console.log("("+tmpLogContent+")前缀是:("+resultStr+")");
return resultStr;
}
else
{
//在上个方法的内部
var resultStr = singlePrefix + tmpLogContent.slice(0,cIndex);//replace(/entered--/, "");
// console.log("("+tmpLogContent+")前缀是:("+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, 打印调用堆栈
// 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);



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