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| function hook_java()
{
Java.perform(function(){
var MyApp = Java.use("com.gdufs.xman.MyApp");
MyApp.saveSN.implementation = function(str){
console.log("savesn:",str);
this.saveSN(str);
}
var proc = Java.use("android.os.Process");
proc.killProcess.implementation = function(pid){
console.log("kill pid:",pid);
}
});
}
function hook_native()
{
var base_jni = Module.findBaseAddress("libmyjni.so");
var n2 = Module.findExportByName("libmyjni.so","n2");
console.log("base:",base_jni," n2:",n2);
if (base_jni!=null) {
Interceptor.attach(n2,{
onEnter : function(args){
console.log("n2 onEnter:",args[0],args[1],args[2]);
},
onLeave : function(retval){
}
})
}
}
function hook_libart()
{
//symbol (no checkjni)
var module_libart = Process.findModuleByName("libart.so");
//or?const hooks = Module.load('libc.so'); var Symbol = hooks.enumerateSymbols();
var symbols = module_libart.enumerateSymbols();
var addr_GetStringUTFChars = null;
var addr_FindClass = null;
var addr_GetStaticFieldID = null;
var addr_SetStaticIntField = null;
for(var i = 0; i < symbols.length;i++)
{
if (symbols[i].name.indexOf("art") != -1) {
if (symbols[i].name.indexOf("CheckJNI") == -1) {
if (symbols[i].name.indexOf("GetStringUTFChars") != -1) {
addr_GetStringUTFChars = symbols[i].address;
console.log(symbols[i].name,addr_GetStringUTFChars);
}
if (symbols[i].name.indexOf("art3JNI9FindClass") != -1) {
addr_FindClass = symbols[i].address;
console.log(symbols[i].name,addr_FindClass);
}
if (symbols[i].name.indexOf("GetStaticFieldID") != -1) {
addr_GetStaticFieldID = symbols[i].address;
console.log(symbols[i].name,addr_GetStaticFieldID);
}
if (symbols[i].name.indexOf("SetStaticIntField") != -1) {
addr_SetStaticIntField = symbols[i].address;
console.log(symbols[i].name,addr_SetStaticIntField);
}
}
}
}
//print str
//print so stack : FUZZY and ACCURATE两种方式
if (addr_GetStringUTFChars) {
Interceptor.attach(addr_GetStringUTFChars,{
onEnter : function(args){
// console.log('addr_GetStringUTFChars onEnter called from:\n' +
// Thread.backtrace(this.context, Backtracer.FUZZY)
// .map(DebugSymbol.fromAddress).join('\n') + '\n');
},
onLeave : function(retval){
console.log("GetStringUTFChars:",ptr(retval).readCString())
}
});
}
if (addr_FindClass) {
Interceptor.attach(addr_FindClass,{
onEnter : function(args){
console.log("FindClass Arg:", ptr(args[1]).readCString());
},
onLeave : function(retval){
}
});
}
if (addr_GetStaticFieldID) {
Interceptor.attach(addr_GetStaticFieldID,{
onEnter : function(args){
console.log("GetStaticFieldID Arg3:", ptr(args[2]).readCString(),"Arg4:",ptr(args[3]).readCString());
},
onLeave : function(retval){
}
});
}
if (addr_SetStaticIntField) {
Interceptor.attach(addr_SetStaticIntField,{
onEnter : function(args){
console.log("SetStaticIntField Arg4:",args[3]);
},
onLeave : function(retval){
}
});
}
//hook findclass getstaticfiledid
}
function hook_libc()
{
//strcmp(or hook lib import)
var addr_strcmp = Module.findExportByName("libc.so","strcmp");
Interceptor.attach(addr_strcmp,{
onEnter: function(args){
var str_dst = ptr(args[1]).readCString();
if (str_dst == "EoPAoY62@ElRD") {
console.log("strcmp:", ptr(args[0]).readCString(),
ptr(args[1]).readCString());
}
}
});
}
function writefile()
{
//frida api write file
//frida 的api来写文件
var file = new File("/sdcard/reg.dat", "w");
file.write("EoPAoY62@ElRD");
file.flush();
file.close();
}
function writefile2()
{
//frida native function write file
var addr_fopen = Module.findExportByName("libc.so","fopen");
var addr_fputs = Module.findExportByName("libc.so","fputs");
var addr_fclose = Module.findExportByName("libc.so","fclose");
console.log("addr file api:",addr_fopen,addr_fputs,addr_fclose);
var fopen = new NativeFunction(addr_fopen,"pointer",["pointer","pointer"]);
var fputs = new NativeFunction(addr_fputs,"int",["pointer","pointer"]);
var fclose = new NativeFunction(addr_fclose,"int",["pointer"]);
var filename = Memory.allocUtf8String("/sdcard/reg.dat");
var open_type = Memory.allocUtf8String("w+");
var handle = fopen(filename,open_type);
var buffer = Memory.allocUtf8String("EoPAoY62@ElRD");
var ret = fputs(buffer,handle);
fclose(handle);
}
function main()
{
hook_java();
hook_native();
hook_libart();
hook_libc();
}
setImmediate(main);
|