本文介绍了使用Frida进行加密参数hook的实战技巧，包括Python和JavaScript的实现，无需应用脱壳，适用于加密参数的动态分析。
一、python终极版
import frida # 导入frida模块
import sys # 导入sys模块
jscode = """
function showStacks() {
Java.perform(function() {
send(Java.use("android.util.Log").getStackTraceString(Java.use("java.lang.Exception").$new()));
var kgh = Java.use("com.kc.openset.util.VerifyUtil");
kgh.getMD5Verify.overload('java.lang.String','java.lang.String').implementation = function (x1,x2) {
console.log("getMD5Verify x1:",x1);
console.log("getMD5Verify x2:",x2);
var result = this.getMD5Verify(x1,x2);
console.log(result);
return result;
}
});
}
function bytesToHex(arr) {
var str = "";
for (var i = 0; i < arr.length; i++) {
var tmp = arr[i];
if (tmp < 0) {
tmp = (255 + tmp + 1).toString(16);
} else {
tmp = tmp.toString(16);
}
if (tmp.length == 1) {
tmp = "0" + tmp;
}
str += tmp;
}
return str;
}
function bytesToBase64(e) {
var base64EncodeChars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
var r, a, c, h, o, t;
for (c = e.length, a = 0, r = ''; a < c;) {
if (h = 255 & e[a++], a == c) {
r += base64EncodeChars.charAt(h >> 2),
r += base64EncodeChars.charAt((3 & h) << 4),
r += '==';
break
}
if (o = e[a++], a == c) {
r += base64EncodeChars.charAt(h >> 2),
r += base64EncodeChars.charAt((3 & h) << 4 | (240 & o) >> 4),
r += base64EncodeChars.charAt((15 & o) << 2),
r += '=';
break
}
t = e[a++],
r += base64EncodeChars.charAt(h >> 2),
r += base64EncodeChars.charAt((3 & h) << 4 | (240 & o) >> 4),
r += base64EncodeChars.charAt((15 & o) << 2 | (192 & t) >> 6),
r += base64EncodeChars.charAt(63 & t)
}
return r
}
function bytesToString(arr) {
if (typeof arr === 'string') {
return arr;
}
var str = '',
_arr = arr;
for (var i = 0; i < _arr.length; i++) {
var one = _arr[i].toString(2),
v = one.match(/^1+?(?=0)/);
if (v && one.length == 8) {
var bytesLength = v[0].length;
var store = _arr[i].toString(2).slice(7 - bytesLength);
for (var st = 1; st < bytesLength; st++) {
store += _arr[st + i].toString(2).slice(2);
}
str += String.fromCharCode(parseInt(store, 2));
i += bytesLength - 1;
} else {
str += String.fromCharCode(_arr[i]);
}
}
return str;
}
Java.perform(function () {
var secretKeySpec = Java.use('javax.crypto.spec.SecretKeySpec');
secretKeySpec.$init.overload('[B','java.lang.String').implementation = function (a,b) {
showStacks();
var result = this.$init(a, b);
send("======================================");
send("算法名：" + b + "|Dec密钥:" + bytesToString(a));
send("算法名：" + b + "|Hex密钥:" + bytesToHex(a));
return result;
}
var mac = Java.use('javax.crypto.Mac');
mac.getInstance.overload('java.lang.String').implementation = function (a) {
showStacks();
var result = this.getInstance(a);
send("======================================");
send("算法名：" + a);
return result;
}
mac.update.overload('[B').implementation = function (a) {
showStacks();
this.update(a);
send("======================================");
send("update:" + bytesToString(a))
}
mac.update.overload('[B','int','int').implementation = function (a,b,c) {
showStacks();
this.update(a,b,c)
send("======================================");
send("update:" + bytesToString(a) + "|" + b + "|" + c);
}
mac.doFinal.overload().implementation = function () {
showStacks();
var result = this.doFinal();
send("======================================");
send("doFinal结果(hex):" + bytesToHex(result));
send("doFinal结果(base64):" + bytesToBase64(result));
return result;
}
mac.doFinal.overload('[B').implementation = function (a) {
showStacks();
var result = this.doFinal(a);
send("======================================");
send("doFinal参数:" + bytesToString(a));
send("doFinal结果(hex):" + bytesToHex(result));
send("doFinal结果(base):" + bytesToBase64(result));
return result;
}
var md = Java.use('java.security.MessageDigest');
md.getInstance.overload('java.lang.String','java.lang.String').implementation = function (a,b) {
showStacks();
send("======================================");
send("算法名：" + a);
return this.getInstance(a, b);
}
md.getInstance.overload('java.lang.String').implementation = function (a) {
showStacks();
send("======================================");
send("算法名：" + a);
return this.getInstance(a);
}
md.update.overload('[B').implementation = function (a) {
showStacks();
send("======================================");
send("update:" + bytesToString(a))
return this.update(a);
}
md.update.overload('[B','int','int').implementation = function (a,b,c) {
showStacks();
send("======================================");
send("update:" + bytesToString(a) + "|" + b + "|" + c);
return this.update(a,b,c);
}
md.digest.overload().implementation = function () {
showStacks();
send("======================================");
var result = this.digest();
send("digest结果(hex):" + bytesToHex(result));
send("digest结果(base64):" + bytesToBase64(result));
return result;
}
md.digest.overload('[B').implementation = function (a) {
showStacks();
send("======================================");
send("digest参数:" + bytesToString(a));
var java_string = Java.use("java.lang.String");
console.log('bArr to string: ' + java_string.$new(a));
console.log(bytesToString(a));
var result = this.digest(a);
send("digest结果(hex):" + bytesToHex(result));
send("digest结果(base64):" + bytesToBase64(result));
return result;
}
var ivParameterSpec = Java.use('javax.crypto.spec.IvParameterSpec');
ivParameterSpec.$init.overload('[B').implementation = function (a) {
showStacks();
var result = this.$init(a);
send("======================================");
send("iv向量:" + bytesToString(a));
send("iv向量(hex):" + bytesToHex(a));
return result;
}
var cipher = Java.use('javax.crypto.Cipher');
cipher.getInstance.overload('java.lang.String').implementation = function (a) {
showStacks();
var result = this.getInstance(a);
send("======================================");
send("模式填充:" + a);
return result;
}
cipher.update.overload('[B').implementation = function (a) {
showStacks();
var result = this.update(a);
send("======================================");
send("update:" + bytesToString(a));
return result;
}
cipher.update.overload('[B','int','int').implementation = function (a,b,c) {
showStacks();
var result = this.update(a,b,c);
send("======================================");
send("update:" + bytesToString(a) + "|" + b + "|" + c);
return result;
}
cipher.doFinal.overload().implementation = function () {
showStacks();
var result = this.doFinal();
send("======================================");
send("doFinal结果(hex):" + bytesToHex(result));
send("doFinal结果(base64):" + bytesToBase64(result));
return result;
}
cipher.doFinal.overload('[B').implementation = function (a) {
showStacks();
var result = this.doFinal(a);
send("======================================");
send("doFinal参数:" + bytesToString(a));
send("doFinal结果(hex):" + bytesToHex(result));
send("doFinal结果(base64):" + bytesToBase64(result));
return result;
}
var x509EncodedKeySpec = Java.use('java.security.spec.X509EncodedKeySpec');
x509EncodedKeySpec.$init.overload('[B').implementation = function (a) {
showStacks();
var result = this.$init(a);
send("======================================");
send("RSA密钥:" + bytesToBase64(a));
return result;
}
var rSAPublicKeySpec = Java.use('java.security.spec.RSAPublicKeySpec');
rSAPublicKeySpec.$init.overload('java.math.BigInteger','java.math.BigInteger').implementation = function (a,b) {
showStacks();
var result = this.$init(a,b);
send("======================================");
//send("RSA密钥:" + bytesToBase64(a));
send("RSA密钥N:" + a.toString(16));
send("RSA密钥E:" + b.toString(16));
return result;
}
});
"""
def on_message(message, data): # js中执行send函数后要回调的函数
if message["type"] == "send":
print("[*] {0}".format(message["payload"]))
else:
print(message)
process = frida.get_usb_device().attach('app名') # app名
script = process.create_script(jscode) # 创建js脚本
script.on('message', on_message) # 加载回调函数，也就是js中执行send函数规定要执行的python函数
script.load() # 加载脚本
sys.stdin.read()
二、python终极版2
# -*- coding: UTF-8 -*-
# 代码引用自 guyezhou51
import frida
import sys
import datetime
def on_message(message, data): # 该函数可在frida中使用send(a); 输出python类型内容
if message['type'] == 'send':
print("[*] {0}".format(message['payload']))
else:
print(message)
def get_js():
htmlstr = '''
var N_ENCRYPT_MODE = 1;
var N_DECRYPT_MODE = 2;
function showStacks() {
var Exception = Java.use("java.lang.Exception");
var ins = Exception.$new("Exception");
var straces = ins.getStackTrace();
if (undefined == straces || null == straces) {
return;
}
mylog("===================== Stack strat=======================","","",0);
for (var i = 0; i < straces.length; i++) {
var str = " " + straces[i].toString();
mylog(str,"","",0);
}
mylog("====================== Stack end=======================","","",0);
Exception.$dispose();
};
//工具相关函数
var base64EncodeChars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/',
base64DecodeChars = new Array((-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), 62, (-1), (-1), (-1), 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, (-1), (-1), (-1), (-1), (-1), (-1), (-1), 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, (-1), (-1), (-1), (-1), (-1), (-1), 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, (-1), (-1), (-1), (-1), (-1));
function bytesToHex(arr) {
var str = '';
arr = new Uint8Array(arr);
var k, j;
for (var i = 0; i < arr.length; i++) {
k = arr[i];
j = k;
if (k < 0) {
j = k + 256;
}
if (j < 16) {
str += "0";
}
str += j.toString(16);
}
return str;
};
//将byte[]转成String的方法
function bytesToString(arr) {
var str = '';
arr = new Uint8Array(arr);
for (var i in arr) {
str += String.fromCharCode(arr[i]);
}
return str;
};
function bytesToBase64(e) {
e = new Uint8Array(e);
var r, a, c, h, o, t;
for (c = e.length, a = 0, r = ''; a < c;) {
if (h = 255 & e[a++], a == c) {
r += base64EncodeChars.charAt(h >> 2),
r += base64EncodeChars.charAt((3 & h) << 4),
r += '==';
break;
}
if (o = e[a++], a == c) {
r += base64EncodeChars.charAt(h >> 2),
r += base64EncodeChars.charAt((3 & h) << 4 | (240 & o) >> 4),
r += base64EncodeChars.charAt((15 & o) << 2),
r += '=';
break;
}
t = e[a++],
r += base64EncodeChars.charAt(h >> 2),
r += base64EncodeChars.charAt((3 & h) << 4 | (240 & o) >> 4),
r += base64EncodeChars.charAt((15 & o) << 2 | (192 & t) >> 6),
r += base64EncodeChars.charAt(63 & t);
}
return r;
};
//stringToBase64 stringToHex stringToBytes
//base64ToString base64ToHex base64ToBytes
// hexToBase64 hexToBytes
// bytesToBase64 bytesToHex bytesToString
function mylog(s,code,s2,ii){
if(ii==1){
//输出hex类型
var str = bytesToHex(code)+s2;
console.log(s+" |HEX :"+str);
send(s+" |HEX :"+str);
//输出base64
str = bytesToBase64(code)+s2;
console.log( s+" |BASE64 :"+str);
send(s+" |BASE64 :"+str);
//输出string类型
str = bytesToString(code)+s2;
console.log(s+" |str :"+str);
send(s+" |str :"+str);
}else{
console.log(s);
send(s);
}
};
Java.perform(function () {
var secretKeySpec = Java.use('javax.crypto.spec.SecretKeySpec');
var AE算法名称 = null;
secretKeySpec.$init.overload('[B', 'java.lang.String').implementation = function (a, b) {
showStacks();
var result = this.$init(a, b);
mylog("======================================","","",0);
mylog("算法名：" + b + "| 密钥" , a,"",1);
AE算法名称=b;
return result;
};
secretKeySpec.$init.overload('[B', 'int','int','java.lang.String').implementation = function (a,i1,i2, b) {
showStacks();
var result = this.$init(a,i1,i2,b);
mylog("======================================","","",0);
mylog("算法名：" + b + "| 密钥" , a," |开始取的位置"+i1+"取长度:"+i2,1);
AE算法名称=b;
return result;
};
var DESKeySpec = Java.use('javax.crypto.spec.DESKeySpec');
DESKeySpec.$init.overload('[B').implementation = function (a) {
showStacks();
var result = this.$init(a);
mylog("======================================","","",0);
var bytes_key_des = this.getKey();
mylog("des密钥 " ,bytes_key_des,"",1);
return result;
};
DESKeySpec.$init.overload('[B', 'int').implementation = function (a, b) {
showStacks();
var result = this.$init(a, b);
mylog("======================================","","",0);
var bytes_key_des = this.getKey();
mylog("des密钥 " , bytes_key_des,"",1);
return result;
};
//3des
var DESedeKeySpec = Java.use('javax.crypto.spec.DESedeKeySpec');
DESedeKeySpec.$init.overload('[B').implementation = function (a) {
showStacks();
var result = this.$init(a);
mylog("======================================","","",0);
var bytes_key_des = this.getKey();
mylog("des密钥 " ,bytes_key_des,"",1);
return result;
};
DESedeKeySpec.$init.overload('[B', 'int').implementation = function (a, b) {
showStacks();
var result = this.$init(a, b);
mylog("======================================","","",0);
var bytes_key_des = this.getKey();
mylog("des密钥 " , bytes_key_des,"",1);
return result;
};
var mac = Java.use('javax.crypto.Mac');
var MAC算法名称=null;
mac.getInstance.overload('java.lang.String').implementation = function (a) {
showStacks();
var result = this.getInstance(a);
mylog("======================================","","",0);
mylog("Mac算法名：" + a,"","",0);
MAC算法名称 =a;
return result;
};
mac.update.overload('[B').implementation = function (a) {
showStacks();
this.update(a);
mylog("======================================","","",0);
mylog(MAC算法名称+"update:" ,a,"",1);
};
mac.update.overload('[B', 'int', 'int').implementation = function (a, b, c) {
showStacks();
this.update(a, b, c);
mylog("======================================","","",0);
mylog(MAC算法名称+"update:" , a , "|" + b + "|" + c,1);
};
mac.update.overload('java.nio.ByteBuffer').implementation = function (a) {
showStacks();
this.update(a);
mylog("======================================","","",0);
mylog(MAC算法名称+"update:" ,a.array() , "",1);
};
mac.doFinal.overload().implementation = function () {
showStacks();
var result = this.doFinal();
mylog("======================================","","",0);
mylog(MAC算法名称+"doFinal结果:", result,"",1);
return result;
};
mac.doFinal.overload('[B').implementation = function (a) {
showStacks();
var result = this.doFinal(a);
mylog("======================================","","",0);
mylog(MAC算法名称+"doFinal参数:",a,"",1);
return result;
};
mac.doFinal.overload('[B','int').implementation = function (a,b) {
showStacks();
var result = this.doFinal(a,b);
mylog("======================================","","",0);
mylog(MAC算法名称+"doFinal参数:",a," | "+b,1);
return result;
};
var md = Java.use('java.security.MessageDigest');
var HX算法名称=null;
md.getInstance.overload('java.lang.String', 'java.lang.String').implementation = function (a, b) {
showStacks();
mylog("======================================","","",0);
mylog("算法名：" + a,"","",0);
HX算法名称 = a;
return this.getInstance(a, b);
};
md.getInstance.overload('java.lang.String', 'java.security.Provider').implementation = function (a, b) {
showStacks();
mylog("======================================","","",0);
mylog("算法名：" + a,"","",0);
HX算法名称 = a;
return this.getInstance(a, b);
};
md.getInstance.overload('java.lang.String').implementation = function (a) {
showStacks();
mylog("======================================","","",0);
mylog("算法名：" + a,"","",0);
HX算法名称 = a;
return this.getInstance(a);
};
md.update.overload('[B').implementation = function (a) {
showStacks();
mylog("======================================","","",0);
mylog(HX算法名称+"_update:" , a,"",1);
return this.update(a);
};
md.update.overload('[B', 'int', 'int').implementation = function (a, b, c) {
showStacks();
mylog("======================================","","",0);
mylog(HX算法名称+"_update:" , a , "|" + b + "|" + c,1);
return this.update(a, b, c);
};
md.update.overload('java.nio.ByteBuffer').implementation = function (a) {
showStacks();
this.update(a);
mylog("======================================","","",0);
mylog(HX算法名称+"update:" ,a.array() , "",1);
};
md.digest.overload().implementation = function () {
showStacks();
mylog("======================================","","",0);
var result = this.digest();
mylog(HX算法名称+"_digest结果:" , result,"",1);
return result;
};
md.digest.overload('[B').implementation = function (a) {
showStacks();
mylog("======================================","","",0);
mylog(HX算法名称+"_digest参数:" , a,"",1);
var result = this.digest(a);
mylog(HX算法名称+"_digest结果:" , result,"",1);
return result;
} ;
md.digest.overload('[B','int','int').implementation = function (a,b,c) {
showStacks();
mylog("======================================","","",0);
mylog(HX算法名称+"_digest参数:" , a," |"+b+"|"+c,1);
var result = this.digest(a,b,c);
mylog(HX算法名称+"_digest结果:" , result,"",1);
return result;
};
var ivParameterSpec = Java.use('javax.crypto.spec.IvParameterSpec');
ivParameterSpec.$init.overload('[B').implementation = function (a) {
showStacks();
var result = this.$init(a);
mylog("======================================","","",0);
mylog("iv向量: " ,a,"",1);
return result;
};
var ivParameterSpec = Java.use('javax.crypto.spec.IvParameterSpec');
ivParameterSpec.$init.overload('[B','int','int').implementation = function (a,b,c) {
showStacks();
var result = this.$init(a,b,c);
mylog("======================================","","",0);
mylog("iv向量: " ,a," |"+b+"|"+c,1);
return result;
};
var cipher = Java.use('javax.crypto.Cipher');
cipher.getInstance.overload('java.lang.String').implementation = function (a) {
showStacks();
var result = this.getInstance(a);
mylog("======================================","","",0);
mylog(AE算法名称+"_模式填充:" + a,"","",0);
return result;
};
cipher.init.overload('int', 'java.security.Key').implementation = function (a, b) {
showStacks();
var result = this.init(a, b);
mylog("======================================","","",0);
if (N_ENCRYPT_MODE == a)
{
mylog(AE算法名称+"_init | 加密模式","","",0);
}
else if(N_DECRYPT_MODE == a)
{
mylog(AE算法名称+"_init | 解密模式","","",0);
};
var bytes_key = b.getEncoded();
mylog(AE算法名称+"_init key:" + "|密钥" , bytes_key,"",1);
return result;
};
cipher.init.overload('int', 'java.security.cert.Certificate').implementation = function (a, b) {
showStacks();
var result = this.init(a, b);
mylog("======================================","","",0);
if (N_ENCRYPT_MODE == a)
{
mylog(AE算法名称+"_init | 加密模式","","",0);
}
else if(N_DECRYPT_MODE == a)
{
mylog(AE算法名称+"_init | 解密模式","","",0);
};
return result;
};
cipher.init.overload('int', 'java.security.Key', 'java.security.spec.AlgorithmParameterSpec').implementation = function (a, b, c) {
showStacks();
var result = this.init(a, b, c);
mylog("======================================","","",0);
if (N_ENCRYPT_MODE == a)
{
mylog(AE算法名称+"_init | 加密模式","","",0);
}
else if(N_DECRYPT_MODE == a)
{
mylog(AE算法名称+"_init | 解密模式","","",0);
};
var bytes_key = b.getEncoded();
mylog(AE算法名称+"_init key:" + "|密钥" ,bytes_key,"",1);
return result;
};
cipher.init.overload('int', 'java.security.cert.Certificate', 'java.security.SecureRandom').implementation = function (a, b, c) {
showStacks();
var result = this.init(a, b, c);
if (N_ENCRYPT_MODE == a)
{
mylog(AE算法名称+"_init | 加密模式","","",0);
}
else if(N_DECRYPT_MODE == a)
{
mylog(AE算法名称+"_init | 解密模式","","",0);
};
return result;
};
cipher.init.overload('int', 'java.security.Key', 'java.security.SecureRandom').implementation = function (a, b, c) {
showStacks();
var result = this.init(a, b, c);
if (N_ENCRYPT_MODE == a)
{
mylog(AE算法名称+"_init | 加密模式","","",0);
}
else if(N_DECRYPT_MODE == a)
{
mylog(AE算法名称+"_init | 解密模式","","",0);
};
var bytes_key = b.getEncoded();
mylog(AE算法名称+"_init key:" + "密钥:" , bytes_key,"",1);
return result;
};
cipher.init.overload('int', 'java.security.Key', 'java.security.AlgorithmParameters').implementation = function (a, b, c) {
showStacks();
var result = this.init(a, b, c);
if (N_ENCRYPT_MODE == a)
{
mylog(AE算法名称+"_init | 加密模式","","",0);
}
else if(N_DECRYPT_MODE == a)
{
mylog(AE算法名称+"_init | 解密模式","","",0);
};
var bytes_key = b.getEncoded();
mylog(AE算法名称+"_init key:" + "密钥:" , bytes_key,"",1);
return result;
};
cipher.init.overload('int', 'java.security.Key', 'java.security.AlgorithmParameters', 'java.security.SecureRandom').implementation = function (a, b, c, d) {
showStacks();
var result = this.init(a, b, c, d);
if (N_ENCRYPT_MODE == a)
{
mylog(AE算法名称+"_init | 加密模式","","",0);
}
else if(N_DECRYPT_MODE == a)
{
mylog(AE算法名称+"_init | 解密模式","","",0);
}
var bytes_key = b.getEncoded();
mylog(AE算法名称+"_init key:" + "密钥:" , bytes_key,"",1);
return result;
};
cipher.init.overload('int', 'java.security.Key', 'java.security.spec.AlgorithmParameterSpec', 'java.security.SecureRandom').implementation = function (a, b, c, d) {
showStacks();
var result = this.update(a, b, c, d);
if (N_ENCRYPT_MODE == a)
{
mylog(AE算法名称+"_init | 加密模式","","",0);
}
else if(N_DECRYPT_MODE == a)
{
mylog(AE算法名称+"_init | 解密模式","","",0);
};
var bytes_key = b.getEncoded();
mylog(AE算法名称+"_init key:" + "|密钥:" ,bytes_key,"",1);
return result;
};
cipher.update.overload('[B').implementation = function (a) {
showStacks();
var result = this.update(a);
mylog("======================================","","",0);
mylog(AE算法名称+"_update:" , a,"",1);
return result;
};
cipher.update.overload('[B', 'int', 'int').implementation = function (a, b, c) {
showStacks();
var result = this.update(a, b, c);
mylog("======================================","","",0);
mylog(AE算法名称+"_update: " , a , "|" + b + "|" + c,1);
return result;
};
cipher.update.overload('[B', 'int', 'int','[B').implementation = function (a, b, c,d) {
showStacks();
var result = this.update(a, b, c, d);
mylog("======================================","","",0);
mylog(AE算法名称+"_update: " , a , "|" + b + "|" + c,1);
mylog(AE算法名称+"_update:结果: " , d , "|" + b + "|" + c,1);
return result;
};
cipher.update.overload('[B', 'int', 'int','[B','int').implementation = function (a, b, c,d,e) {
showStacks();
var result = this.update(a, b, c, d,e);
mylog("======================================","","",0);
mylog(AE算法名称+"_update: " , a , "|" + b + "|" + c + "|" + e,1);
mylog(AE算法名称+"_update:结果: " , d , "|" + b + "|" + c+ "|" + e,1);
return result;
} ;
cipher.update.overload('java.nio.ByteBuffer', 'java.nio.ByteBuffer').implementation = function (a, b) {
showStacks();
var result = this.update(a,b);
mylog("======================================","","",0);
mylog(AE算法名称+"(ByteBuffer)_update: " , a.array() ,"",1);
mylog(AE算法名称+"(ByteBuffer)_update:结果: " , b.array(), "" ,1);
return result;
};
cipher.doFinal.overload().implementation = function () {
showStacks();
var result = this.doFinal();
mylog("======================================","","",0);
mylog(AE算法名称+"_doFinal结果: ",result,"",1);
return result;
};
cipher.doFinal.overload('[B').implementation = function (a) {
showStacks();
var result = this.doFinal(a);
mylog("======================================","","",0);
mylog(AE算法名称+"_doFinal参数: " ,a,"",1);
mylog(AE算法名称+"_doFinal结果: ",result,"",1);
return result;
};
cipher.doFinal.overload('[B','int').implementation = function (a,b) {
showStacks();
var result = this.doFinal(a,b);
mylog("======================================","","",0);
mylog(AE算法名称+"_doFinal结果: ", a," |"+b,1);
return result;
};
cipher.doFinal.overload('[B','int','int').implementation = function (a,b,c) {
showStacks();
var result = this.doFinal(a,b,c);
mylog("======================================","","",0);
mylog(AE算法名称+"_doFinal参数: " ,a," |"+b+"|"+c,1);
mylog(AE算法名称+"_doFinal结果: ",result,"",1);
return result;
};
cipher.doFinal.overload('[B','int','int','[B','int').implementation = function (a,b,c,d,e) {
showStacks();
var result = this.doFinal(a,b,c,d,e);
mylog("======================================","","",0);
mylog(AE算法名称+"_doFinal参数: " ,a," |"+b+"|"+c,1);
mylog(AE算法名称+"_doFinal结果: ",d," |"+e,1);
return result;
};
cipher.doFinal.overload('[B','int','int','[B').implementation = function (a,b,c,d) {
showStacks();
var result = this.doFinal(a,b,c,d);
mylog("======================================","","",0);
mylog(AE算法名称+"_doFinal参数: " ,a," |"+b+"|"+c,1);
mylog(AE算法名称+"_doFinal结果: ",d,"",1);
return result;
};
var x509EncodedKeySpec = Java.use('java.security.spec.X509EncodedKeySpec');
x509EncodedKeySpec.$init.overload('[B').implementation = function (a) {
showStacks();
var result = this.$init(a);
mylog("======================================","","",0);
mylog("RSA公钥:" + bytesToBase64(a),"","",0);
return result;
};
var PKCS8EncodedKeySpec = Java.use('java.security.spec.PKCS8EncodedKeySpec');
PKCS8EncodedKeySpec.$init.overload('[B').implementation = function (a) {
showStacks();
var result = this.$init(a);
mylog("======================================","","",0);
mylog("RSA私钥:" + bytesToBase64(a),"","",0);
return result;
};
var rSAPublicKeySpec = Java.use('java.security.spec.RSAPublicKeySpec');
rSAPublicKeySpec.$init.overload('java.math.BigInteger', 'java.math.BigInteger').implementation = function (a, b) {
showStacks();
var result = this.$init(a, b);
mylog("======================================","","",0);
//console.log("RSA公钥:" + bytesToBase64(a));
mylog("RSA密钥N:" + a.toString(16),"","",0);
mylog("RSA密钥E:" + b.toString(16),"","",0);
return result;
};
var KeyPairGenerator = Java.use('java.security.KeyPairGenerator');
KeyPairGenerator.generateKeyPair.implementation = function ()
{
showStacks();
var result = this.generateKeyPair();
mylog("======================================","","",0);
var str_private = result.getPrivate().getEncoded();
var str_public = result.getPublic().getEncoded();
mylog("公钥 |hex:" + bytesToHex(str_public),"","",0);
mylog("私钥 |hex:" + bytesToHex(str_private),"","",0);
return result;
};
KeyPairGenerator.genKeyPair.implementation = function ()
{
showStacks();
var result = this.genKeyPair();
mylog("======================================","","",0);
var str_private = result.getPrivate().getEncoded();
var str_public = result.getPublic().getEncoded();
mylog("公钥 |hex:" + bytesToHex(str_public),"","",0);
mylog("私钥 |hex:" + bytesToHex(str_private),"","",0);
return result;
};
//返回输出流
var OutStream = Java.use('java.io.OutputStream');
OutStream['write'].overload('[B').implementation = function(data) {
showStacks();
var ret = this.write(data);
mylog("======================================","","",0);
mylog("TCP接收 输出流:",data,"" ,1);
return ret;
};
//返回输出流
OutStream['write'].overload('[B','int','int').implementation = function(data,a,b) {
showStacks();
var ret = this.write(data,a,b);
mylog("======================================","","",0);
mylog("TCP接收 输出流:",data," |"+a+"|"+b ,1);
return ret;
};
//返回输入流
var Stream = Java.use('java.io.InputStream');
Java.use("java.net.Socket").getInputStream.overload().implementation=function(){
showStacks();
mylog("tcp 输入流======================================","","",0);
var rets = this.getInputStream()
return rets;
};
Stream['read'].overload('[B').implementation = function(data) {
mylog("tcp 输入流======================================","","",0);
showStacks();
var ret = this.read(data);
mylog("======================================","","",0);
mylog("tcp 输入流:",data,"" ,1);
return ret;
};
//返回输入流
Stream['read'].overload('[B','int','int').implementation = function(data,a,b) {
mylog("tcp 输入流======================================","","",0);
showStacks();
var ret = this.read(data,a,b);
mylog("======================================","","",0);
mylog("tcp 输入流:",data," |"+a+"|"+b ,1);
return ret;
};
});
'''
return htmlstr
def mians(pakname):
print(pakname)
jscod = get_js()
process = frida.get_device_manager().add_remote_device("127.0.0.1:8080").attach(pakname)
script = process.create_script(jscod)
script.on("message", on_message)
script.load()
sys.stdin.read()
if __name__ == "__main__":
mians("App名") # App name
三、hook方法一
function showStacks() {
Java.perform(function () {
console.log(Java.use("android.util.Log").getStackTraceString(Java.use("java.lang.Exception").$new()));
});
}
var base64EncodeChars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/',
base64DecodeChars = new Array((-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), (-1), 62, (-1), (-1), (-1), 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, (-1), (-1), (-1), (-1), (-1), (-1), (-1), 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, (-1), (-1), (-1), (-1), (-1), (-1), 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, (-1), (-1), (-1), (-1), (-1));
var stringToBase64 = function (e) {
var r,a,c,h,o,t;
for (c = e.length, a = 0, r = ''; a < c; ) {
if (h = 255 & e.charCodeAt(a++), a == c) {
r += base64EncodeChars.charAt(h >> 2),
r += base64EncodeChars.charAt((3 & h) << 4),
r += '==';
break
}
if (o = e.charCodeAt(a++), a == c) {
r += base64EncodeChars.charAt(h >> 2),
r += base64EncodeChars.charAt((3 & h) << 4 | (240 & o) >> 4),
r += base64EncodeChars.charAt((15 & o) << 2),
r += '=';
break
}
t = e.charCodeAt(a++),
r += base64EncodeChars.charAt(h >> 2),
r += base64EncodeChars.charAt((3 & h) << 4 | (240 & o) >> 4),
r += base64EncodeChars.charAt((15 & o) << 2 | (192 & t) >> 6),
r += base64EncodeChars.charAt(63 & t)
}
return r
}
var base64ToString = function (e) {
var r,a,c,h,o,t,d;
for (t = e.length, o = 0, d = ''; o < t; ) {
do
r = base64DecodeChars[255 & e.charCodeAt(o++)];
while (o < t && r == -1);
if (r == -1)
break;
do
a = base64DecodeChars[255 & e.charCodeAt(o++)];
while (o < t && a == -1);
if (a == -1)
break;
d += String.fromCharCode(r << 2 | (48 & a) >> 4);
do {
if (c = 255 & e.charCodeAt(o++), 61 == c)
return d;
c = base64DecodeChars[c]
} while (o < t && c == -1);
if (c == -1)
break;
d += String.fromCharCode((15 & a) << 4 | (60 & c) >> 2);
do {
if (h = 255 & e.charCodeAt(o++), 61 == h)
return d;
h = base64DecodeChars[h]
} while (o < t && h == -1);
if (h == -1)
break;
d += String.fromCharCode((3 & c) << 6 | h)
}
return d
}
var hexToBase64 = function (str) {
return base64Encode(String.fromCharCode.apply(null, str.replace(/\r|\n/g, "").replace(/([\da-fA-F]{2}) ?/g, "0x$1 ").replace(/ +$/, "").split(" ")));
}
var base64ToHex = function (str) {
for (var i = 0, bin = base64Decode(str.replace(/[ \r\n]+$/, "")), hex = []; i < bin.length; ++i) {
var tmp = bin.charCodeAt(i).toString(16);
if (tmp.length === 1)
tmp = "0" + tmp;
hex[hex.length] = tmp;
}
return hex.join("");
}
var hexToBytes = function (str) {
var pos = 0;
var len = str.length;
if (len % 2 != 0) {
return null;
}
len /= 2;
var hexA = new Array();
for (var i = 0; i < len; i++) {
var s = str.substr(pos, 2);
var v = parseInt(s, 16);
hexA.push(v);
pos += 2;
}
return hexA;
}
var bytesToHex = function (arr) {
var str = '';
var k,j;
for(var i = 0; i<arr.length; i++) {
k = arr[i];
j = k;
if (k < 0) {
j = k + 256;
}
if (j < 16) {
str += "0";
}
str += j.toString(16);
}
return str;
}
var stringToHex = function (str) {
var val = "";
for (var i = 0; i < str.length; i++) {
if (val == "")
val = str.charCodeAt(i).toString(16);
else
val += str.charCodeAt(i).toString(16);
}
return val
}
var stringToBytes = function (str) {
var ch, st, re = [];
for (var i = 0; i < str.length; i++ ) {
ch = str.charCodeAt(i);
st = [];
do {
st.push( ch & 0xFF );
ch = ch >> 8;
}
while ( ch );
re = re.concat( st.reverse() );
}
return re;
}
//将byte[]转成String的方法
var bytesToString = function (arr) {
var str = '';
var i;
arr = new Uint8Array(arr);
for(i in arr){
str += String.fromCharCode(arr[i]);
}
return str;
}
var bytesToBase64=function(e){
var r,a,c,h,o,t;
for (c = e.length, a = 0, r = ''; a < c; ) {
if (h = 255 & e[a++], a == c) {
r += base64EncodeChars.charAt(h >> 2),
r += base64EncodeChars.charAt((3 & h) << 4),
r += '==';
break
}
if (o = e[a++], a == c) {
r += base64EncodeChars.charAt(h >> 2),
r += base64EncodeChars.charAt((3 & h) << 4 | (240 & o) >> 4),
r += base64EncodeChars.charAt((15 & o) << 2),
r += '=';
break
}
t = e[a++],
r += base64EncodeChars.charAt(h >> 2),
r += base64EncodeChars.charAt((3 & h) << 4 | (240 & o) >> 4),
r += base64EncodeChars.charAt((15 & o) << 2 | (192 & t) >> 6),
r += base64EncodeChars.charAt(63 & t)
}
return r
}
var base64ToBytes=function(e){
var r,a,c,h,o,t,d;
for (t = e.length, o = 0, d = []; o < t; ) {
do
r = base64DecodeChars[255 & e.charCodeAt(o++)];
while (o < t && r == -1);
if (r == -1)
break;
do
a = base64DecodeChars[255 & e.charCodeAt(o++)];
while (o < t && a == -1);
if (a == -1)
break;
d.push(r << 2 | (48 & a) >> 4);
do {
if (c = 255 & e.charCodeAt(o++), 61 == c)
return d;
c = base64DecodeChars[c]
} while (o < t && c == -1);
if (c == -1)
break;
d.push((15 & a) << 4 | (60 & c) >> 2);
do {
if (h = 255 & e.charCodeAt(o++), 61 == h)
return d;
h = base64DecodeChars[h]
} while (o < t && h == -1);
if (h == -1)
break;
d.push((3 & c) << 6 | h)
}
return d
}
//stringToBase64 stringToHex stringToBytes
//base64ToString base64ToHex base64ToBytes
// hexToBase64 hexToBytes
// bytesToBase64 bytesToHex bytesToString
Java.perform(function () {
var secretKeySpec = Java.use('javax.crypto.spec.SecretKeySpec');
secretKeySpec.$init.overload('[B','java.lang.String').implementation = function (a,b) {
showStacks();
var result = this.$init(a, b);
console.log("======================================");
console.log("算法名：" + b + "|Dec密钥:" + bytesToString(a));
console.log("算法名：" + b + "|Hex密钥:" + bytesToHex(a));
return result;
}
var mac = Java.use('javax.crypto.Mac');
mac.getInstance.overload('java.lang.String').implementation = function (a) {
showStacks();
var result = this.getInstance(a);
console.log("======================================");
console.log("算法名：" + a);
return result;
}
mac.update.overload('[B').implementation = function (a) {
showStacks();
this.update(a);
console.log("======================================");
console.log("update:" + bytesToString(a))
}
mac.update.overload('[B','int','int').implementation = function (a,b,c) {
showStacks();
this.update(a,b,c)
console.log("======================================");
console.log("update:" + bytesToString(a) + "|" + b + "|" + c);
}
mac.doFinal.overload().implementation = function () {
showStacks();
var result = this.doFinal();
console.log("======================================");
console.log("doFinal结果:" + bytesToHex(result));
console.log("doFinal结果:" + bytesToBase64(result));
return result;
}
mac.doFinal.overload('[B').implementation = function (a) {
showStacks();
var result = this.doFinal(a);
console.log("======================================");
console.log("doFinal参数:" + bytesToString(a));
console.log("doFinal结果:" + bytesToHex(result));
console.log("doFinal结果:" + bytesToBase64(result));
return result;
}
var md = Java.use('java.security.MessageDigest');
md.getInstance.overload('java.lang.String','java.lang.String').implementation = function (a,b) {
showStacks();
console.log("======================================");
console.log("算法名：" + a);
return this.getInstance(a, b);
}
md.getInstance.overload('java.lang.String').implementation = function (a) {
showStacks();
console.log("======================================");
console.log("算法名：" + a);
return this.getInstance(a);
}
md.update.overload('[B').implementation = function (a) {
showStacks();
console.log("======================================");
console.log("update:" + bytesToString(a))
return this.update(a);
}
md.update.overload('[B','int','int').implementation = function (a,b,c) {
showStacks();
console.log("======================================");
console.log("update:" + bytesToString(a) + "|" + b + "|" + c);
return this.update(a,b,c);
}
md.digest.overload().implementation = function () {
showStacks();
console.log("======================================");
var result = this.digest();
console.log("digest结果:" + bytesToHex(result));
console.log("digest结果:" + bytesToBase64(result));
return result;
}
md.digest.overload('[B').implementation = function (a) {
showStacks();
console.log("======================================");
console.log("digest参数:" + bytesToString(a));
var result = this.digest(a);
console.log("digest结果:" + bytesToHex(result));
console.log("digest结果:" + bytesToBase64(result));
return result;
}
var ivParameterSpec = Java.use('javax.crypto.spec.IvParameterSpec');
ivParameterSpec.$init.overload('[B').implementation = function (a) {
showStacks();
var result = this.$init(a);
console.log("======================================");
console.log("iv向量:" + bytesToString(a));
console.log("iv向量:" + bytesToHex(a));
return result;
}
var cipher = Java.use('javax.crypto.Cipher');
cipher.getInstance.overload('java.lang.String').implementation = function (a) {
showStacks();
var result = this.getInstance(a);
console.log("======================================");
console.log("模式填充:" + a);
return result;
}
cipher.update.overload('[B').implementation = function (a) {
showStacks();
var result = this.update(a);
console.log("======================================");
console.log("update:" + bytesToString(a));
return result;
}
cipher.update.overload('[B','int','int').implementation = function (a,b,c) {
showStacks();
var result = this.update(a,b,c);
console.log("======================================");
console.log("update:" + bytesToString(a) + "|" + b + "|" + c);
return result;
}
cipher.doFinal.overload().implementation = function () {
showStacks();
var result = this.doFinal();
console.log("======================================");
console.log("doFinal结果:" + bytesToHex(result));
console.log("doFinal结果:" + bytesToBase64(result));
return result;
}
cipher.doFinal.overload('[B').implementation = function (a) {
showStacks();
var result = this.doFinal(a);
console.log("======================================");
console.log("doFinal参数:" + bytesToString(a));
console.log("doFinal结果:" + bytesToHex(result));
console.log("doFinal结果:" + bytesToBase64(result));
return result;
}
var x509EncodedKeySpec = Java.use('java.security.spec.X509EncodedKeySpec');
x509EncodedKeySpec.$init.overload('[B').implementation = function (a) {
showStacks();
var result = this.$init(a);
console.log("======================================");
console.log("RSA密钥:" + bytesToBase64(a));
return result;
}
var rSAPublicKeySpec = Java.use('java.security.spec.RSAPublicKeySpec');
rSAPublicKeySpec.$init.overload('java.math.BigInteger','java.math.BigInteger').implementation = function (a,b) {
showStacks();
var result = this.$init(a,b);
console.log("======================================");
//console.log("RSA密钥:" + bytesToBase64(a));
console.log("RSA密钥N:" + a.toString(16));
console.log("RSA密钥E:" + b.toString(16));
return result;
}
});
转载自：https://blog.csdn.net/weixin_51111267/article/details/131303876?spm=1001.2101.3001.6661.1&utm_medium=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7EPayColumn-1-131303876-blog-133276655.235%5Ev43%5Econtrol&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7EPayColumn-1-131303876-blog-133276655.235%5Ev43%5Econtrol&utm_relevant_index=1