reverse-engineering-sloveni.../frida-script.js
2023-09-25 01:47:25 +02:00

669 lines
18 KiB
JavaScript

function rootChecking() {
var RootPackages = [
"com.noshufou.android.su",
"com.noshufou.android.su.elite",
"eu.chainfire.supersu",
"com.koushikdutta.superuser",
"com.thirdparty.superuser",
"com.yellowes.su",
"com.koushikdutta.rommanager",
"com.koushikdutta.rommanager.license",
"com.dimonvideo.luckypatcher",
"com.chelpus.lackypatch",
"com.ramdroid.appquarantine",
"com.ramdroid.appquarantinepro",
"com.devadvance.rootcloak",
"com.devadvance.rootcloakplus",
"de.robv.android.xposed.installer",
"com.saurik.substrate",
"com.zachspong.temprootremovejb",
"com.amphoras.hidemyroot",
"com.amphoras.hidemyrootadfree",
"com.formyhm.hiderootPremium",
"com.formyhm.hideroot",
"me.phh.superuser",
"eu.chainfire.supersu.pro",
"com.kingouser.com",
"com.topjohnwu.magisk",
];
var RootBinaries = [
"su",
"busybox",
"supersu",
"Superuser.apk",
"KingoUser.apk",
"SuperSu.apk",
"magisk",
];
var RootProperties = {
"ro.build.selinux": "1",
"ro.debuggable": "0",
"service.adb.root": "0",
"ro.secure": "1",
};
var RootPropertiesKeys = [];
for (var k in RootProperties) RootPropertiesKeys.push(k);
var PackageManager = Java.use("android.app.ApplicationPackageManager");
var Runtime = Java.use("java.lang.Runtime");
var NativeFile = Java.use("java.io.File");
var String = Java.use("java.lang.String");
var SystemProperties = Java.use("android.os.SystemProperties");
var BufferedReader = Java.use("java.io.BufferedReader");
var ProcessBuilder = Java.use("java.lang.ProcessBuilder");
var StringBuffer = Java.use("java.lang.StringBuffer");
var loaded_classes = Java.enumerateLoadedClassesSync();
send("Loaded " + loaded_classes.length + " classes!");
var useKeyInfo = false;
var useProcessManager = false;
send("loaded: " + loaded_classes.indexOf("java.lang.ProcessManager"));
if (loaded_classes.indexOf("java.lang.ProcessManager") != -1) {
try {
//useProcessManager = true;
//var ProcessManager = Java.use('java.lang.ProcessManager');
} catch (err) {
send("ProcessManager Hook failed: " + err);
}
} else {
send("ProcessManager hook not loaded");
}
var KeyInfo = null;
if (loaded_classes.indexOf("android.security.keystore.KeyInfo") != -1) {
try {
//useKeyInfo = true;
//var KeyInfo = Java.use('android.security.keystore.KeyInfo');
} catch (err) {
send("KeyInfo Hook failed: " + err);
}
} else {
send("KeyInfo hook not loaded");
}
PackageManager.getPackageInfo.overload(
"java.lang.String",
"int"
).implementation = function (pname, flags) {
var shouldFakePackage = RootPackages.indexOf(pname) > -1;
if (shouldFakePackage) {
send("Bypass root check for package: " + pname);
pname = "set.package.name.to.a.fake.one.so.we.can.bypass.it";
}
return this.getPackageInfo
.overload("java.lang.String", "int")
.call(this, pname, flags);
};
NativeFile.exists.implementation = function () {
var name = NativeFile.getName.call(this);
var shouldFakeReturn = RootBinaries.indexOf(name) > -1;
if (shouldFakeReturn) {
send("Bypass return value for binary: " + name);
return false;
} else {
return this.exists.call(this);
}
};
var exec = Runtime.exec.overload("[Ljava.lang.String;");
var exec1 = Runtime.exec.overload("java.lang.String");
var exec2 = Runtime.exec.overload("java.lang.String", "[Ljava.lang.String;");
var exec3 = Runtime.exec.overload(
"[Ljava.lang.String;",
"[Ljava.lang.String;"
);
var exec4 = Runtime.exec.overload(
"[Ljava.lang.String;",
"[Ljava.lang.String;",
"java.io.File"
);
var exec5 = Runtime.exec.overload(
"java.lang.String",
"[Ljava.lang.String;",
"java.io.File"
);
exec5.implementation = function (cmd, env, dir) {
if (
cmd.indexOf("getprop") != -1 ||
cmd == "mount" ||
cmd.indexOf("build.prop") != -1 ||
cmd == "id" ||
cmd == "sh"
) {
var fakeCmd = "grep";
send("Bypass " + cmd + " command");
return exec1.call(this, fakeCmd);
}
if (cmd == "su") {
var fakeCmd =
"justafakecommandthatcannotexistsusingthisshouldthowanexceptionwheneversuiscalled";
send("Bypass " + cmd + " command");
return exec1.call(this, fakeCmd);
}
return exec5.call(this, cmd, env, dir);
};
exec4.implementation = function (cmdarr, env, file) {
for (var i = 0; i < cmdarr.length; i = i + 1) {
var tmp_cmd = cmdarr[i];
if (
tmp_cmd.indexOf("getprop") != -1 ||
tmp_cmd == "mount" ||
tmp_cmd.indexOf("build.prop") != -1 ||
tmp_cmd == "id" ||
tmp_cmd == "sh"
) {
var fakeCmd = "grep";
send("Bypass " + cmdarr + " command");
return exec1.call(this, fakeCmd);
}
if (tmp_cmd == "su") {
var fakeCmd =
"justafakecommandthatcannotexistsusingthisshouldthowanexceptionwheneversuiscalled";
send("Bypass " + cmdarr + " command");
return exec1.call(this, fakeCmd);
}
}
return exec4.call(this, cmdarr, env, file);
};
exec3.implementation = function (cmdarr, envp) {
for (var i = 0; i < cmdarr.length; i = i + 1) {
var tmp_cmd = cmdarr[i];
if (
tmp_cmd.indexOf("getprop") != -1 ||
tmp_cmd == "mount" ||
tmp_cmd.indexOf("build.prop") != -1 ||
tmp_cmd == "id" ||
tmp_cmd == "sh"
) {
var fakeCmd = "grep";
send("Bypass " + cmdarr + " command");
return exec1.call(this, fakeCmd);
}
if (tmp_cmd == "su") {
var fakeCmd =
"justafakecommandthatcannotexistsusingthisshouldthowanexceptionwheneversuiscalled";
send("Bypass " + cmdarr + " command");
return exec1.call(this, fakeCmd);
}
}
return exec3.call(this, cmdarr, envp);
};
exec2.implementation = function (cmd, env) {
if (
cmd.indexOf("getprop") != -1 ||
cmd == "mount" ||
cmd.indexOf("build.prop") != -1 ||
cmd == "id" ||
cmd == "sh"
) {
var fakeCmd = "grep";
send("Bypass " + cmd + " command");
return exec1.call(this, fakeCmd);
}
if (cmd == "su") {
var fakeCmd =
"justafakecommandthatcannotexistsusingthisshouldthowanexceptionwheneversuiscalled";
send("Bypass " + cmd + " command");
return exec1.call(this, fakeCmd);
}
return exec2.call(this, cmd, env);
};
exec.implementation = function (cmd) {
for (var i = 0; i < cmd.length; i = i + 1) {
var tmp_cmd = cmd[i];
if (
tmp_cmd.indexOf("getprop") != -1 ||
tmp_cmd == "mount" ||
tmp_cmd.indexOf("build.prop") != -1 ||
tmp_cmd == "id" ||
tmp_cmd == "sh"
) {
var fakeCmd = "grep";
send("Bypass " + cmd + " command");
return exec1.call(this, fakeCmd);
}
if (tmp_cmd == "su") {
var fakeCmd =
"justafakecommandthatcannotexistsusingthisshouldthowanexceptionwheneversuiscalled";
send("Bypass " + cmd + " command");
return exec1.call(this, fakeCmd);
}
}
return exec.call(this, cmd);
};
exec1.implementation = function (cmd) {
if (
cmd.indexOf("getprop") != -1 ||
cmd == "mount" ||
cmd.indexOf("build.prop") != -1 ||
cmd == "id" ||
cmd == "sh"
) {
var fakeCmd = "grep";
send("Bypass " + cmd + " command");
return exec1.call(this, fakeCmd);
}
if (cmd == "su") {
var fakeCmd =
"justafakecommandthatcannotexistsusingthisshouldthowanexceptionwheneversuiscalled";
send("Bypass " + cmd + " command");
return exec1.call(this, fakeCmd);
}
return exec1.call(this, cmd);
};
String.contains.implementation = function (name) {
if (name == "test-keys") {
send("Bypass test-keys check");
return false;
}
return this.contains.call(this, name);
};
var get = SystemProperties.get.overload("java.lang.String");
get.implementation = function (name) {
if (RootPropertiesKeys.indexOf(name) != -1) {
send("Bypass " + name);
return RootProperties[name];
}
return this.get.call(this, name);
};
Interceptor.attach(Module.findExportByName("libc.so", "fopen"), {
onEnter: function (args) {
var path = Memory.readCString(args[0]);
path = path.split("/");
var executable = path[path.length - 1];
var shouldFakeReturn = RootBinaries.indexOf(executable) > -1;
if (shouldFakeReturn) {
Memory.writeUtf8String(args[0], "/notexists");
send("Bypass native fopen");
}
},
onLeave: function (retval) {},
});
Interceptor.attach(Module.findExportByName("libc.so", "system"), {
onEnter: function (args) {
var cmd = Memory.readCString(args[0]);
send("SYSTEM CMD: " + cmd);
if (
cmd.indexOf("getprop") != -1 ||
cmd == "mount" ||
cmd.indexOf("build.prop") != -1 ||
cmd == "id"
) {
send("Bypass native system: " + cmd);
Memory.writeUtf8String(args[0], "grep");
}
if (cmd == "su") {
send("Bypass native system: " + cmd);
Memory.writeUtf8String(
args[0],
"justafakecommandthatcannotexistsusingthisshouldthowanexceptionwheneversuiscalled"
);
}
},
onLeave: function (retval) {},
});
/*
TO IMPLEMENT:
Exec Family
int execl(const char *path, const char *arg0, ..., const char *argn, (char *)0);
int execle(const char *path, const char *arg0, ..., const char *argn, (char *)0, char *const envp[]);
int execlp(const char *file, const char *arg0, ..., const char *argn, (char *)0);
int execlpe(const char *file, const char *arg0, ..., const char *argn, (char *)0, char *const envp[]);
int execv(const char *path, char *const argv[]);
int execve(const char *path, char *const argv[], char *const envp[]);
int execvp(const char *file, char *const argv[]);
int execvpe(const char *file, char *const argv[], char *const envp[]);
*/
BufferedReader.readLine.overload("boolean").implementation = function () {
var text = this.readLine.overload("boolean").call(this);
if (text === null) {
// just pass , i know it's ugly as hell but test != null won't work :(
} else {
var shouldFakeRead = text.indexOf("ro.build.tags=test-keys") > -1;
if (shouldFakeRead) {
send("Bypass build.prop file read");
text = text.replace(
"ro.build.tags=test-keys",
"ro.build.tags=release-keys"
);
}
}
return text;
};
var executeCommand = ProcessBuilder.command.overload("java.util.List");
ProcessBuilder.start.implementation = function () {
var cmd = this.command.call(this);
var shouldModifyCommand = false;
for (var i = 0; i < cmd.size(); i = i + 1) {
var tmp_cmd = cmd.get(i).toString();
if (
tmp_cmd.indexOf("getprop") != -1 ||
tmp_cmd.indexOf("mount") != -1 ||
tmp_cmd.indexOf("build.prop") != -1 ||
tmp_cmd.indexOf("id") != -1
) {
shouldModifyCommand = true;
}
}
if (shouldModifyCommand) {
send("Bypass ProcessBuilder " + cmd);
this.command.call(this, ["grep"]);
return this.start.call(this);
}
if (cmd.indexOf("su") != -1) {
send("Bypass ProcessBuilder " + cmd);
this.command.call(this, [
"justafakecommandthatcannotexistsusingthisshouldthowanexceptionwheneversuiscalled",
]);
return this.start.call(this);
}
return this.start.call(this);
};
if (useProcessManager) {
var ProcManExec = ProcessManager.exec.overload(
"[Ljava.lang.String;",
"[Ljava.lang.String;",
"java.io.File",
"boolean"
);
var ProcManExecVariant = ProcessManager.exec.overload(
"[Ljava.lang.String;",
"[Ljava.lang.String;",
"java.lang.String",
"java.io.FileDescriptor",
"java.io.FileDescriptor",
"java.io.FileDescriptor",
"boolean"
);
ProcManExec.implementation = function (cmd, env, workdir, redirectstderr) {
var fake_cmd = cmd;
for (var i = 0; i < cmd.length; i = i + 1) {
var tmp_cmd = cmd[i];
if (
tmp_cmd.indexOf("getprop") != -1 ||
tmp_cmd == "mount" ||
tmp_cmd.indexOf("build.prop") != -1 ||
tmp_cmd == "id"
) {
var fake_cmd = ["grep"];
send("Bypass " + cmdarr + " command");
}
if (tmp_cmd == "su") {
var fake_cmd = [
"justafakecommandthatcannotexistsusingthisshouldthowanexceptionwheneversuiscalled",
];
send("Bypass " + cmdarr + " command");
}
}
return ProcManExec.call(this, fake_cmd, env, workdir, redirectstderr);
};
ProcManExecVariant.implementation = function (
cmd,
env,
directory,
stdin,
stdout,
stderr,
redirect
) {
var fake_cmd = cmd;
for (var i = 0; i < cmd.length; i = i + 1) {
var tmp_cmd = cmd[i];
if (
tmp_cmd.indexOf("getprop") != -1 ||
tmp_cmd == "mount" ||
tmp_cmd.indexOf("build.prop") != -1 ||
tmp_cmd == "id"
) {
var fake_cmd = ["grep"];
send("Bypass " + cmdarr + " command");
}
if (tmp_cmd == "su") {
var fake_cmd = [
"justafakecommandthatcannotexistsusingthisshouldthowanexceptionwheneversuiscalled",
];
send("Bypass " + cmdarr + " command");
}
}
return ProcManExecVariant.call(
this,
fake_cmd,
env,
directory,
stdin,
stdout,
stderr,
redirect
);
};
}
if (useKeyInfo) {
KeyInfo.isInsideSecureHardware.implementation = function () {
send("Bypass isInsideSecureHardware");
return true;
};
}
}
var config = {
package: "com.margento.slovenskezeleznice",
printSummary: true,
printDefinition: true,
printArgs: true,
printReturn: true,
excludeStrings: [],
timeout: 500,
};
var levels = {
info: "INFO",
warn: "WARN",
error: "ERROR",
};
var colors = {
reset: "\x1b[39;49;00m",
black: "\x1b[30;01m",
blue: "\x1b[34;01m",
cyan: "\x1b[36;01m",
gray: "\x1b[37;11m",
green: "\x1b[32;01m",
purple: "\x1b[35;01m",
red: "\x1b[31;01m",
yellow: "\x1b[33;01m",
light: {
black: "\x1b[30;11m",
blue: "\x1b[34;11m",
cyan: "\x1b[36;11m",
gray: "\x1b[37;01m",
green: "\x1b[32;11m",
purple: "\x1b[35;11m",
red: "\x1b[31;11m",
yellow: "\x1b[33;11m",
},
};
function log(level, text) {
console.log(
`${
level === levels.info
? colors.light.blue
: level === levels.warn
? colors.light.yellow
: colors.light.red
}[${level}]${colors.reset} ${text}`
);
}
function inspectClass(obj) {
var methods = obj.class.getDeclaredMethods();
methods.forEach((m) => {
var name = m.getName();
var method = obj[name];
if (!method) {
return;
}
if (config.printSummary) {
log(levels.info, `\t\t- Method: ${name}`);
}
var overloads = method.overloads;
for (var overload of overloads) {
overload.implementation = function () {
log(
levels.warn,
`+ Call: ${
config.printDefinition
? m
: m.getDeclaringClass().getName() + "." + name
}`
);
if (config.printArgs) {
var i = 0;
for (var arg of arguments) {
if (arg !== null && arg !== undefined) {
log(levels.warn, `\t\t- Args[${i}]: ${arg.toString()}`);
}
i++;
}
}
var ret = this[name].apply(this, arguments);
if (config.printReturn) {
if (ret !== null && ret !== undefined) {
log(levels.warn, `\t\t- Return: ${ret.toString()}`);
}
}
return ret;
};
}
});
}
function tracePackage() {
console.log();
Java.enumerateLoadedClassesSync()
.filter((c) => c.includes(config.package))
.forEach((c) => {
try {
if (config.printSummary) {
log(levels.info, `+ Class: ${c}`);
}
if (
config.excludeStrings.filter((e) => c.toString().includes(e)).length
) {
return;
}
var obj = Java.use(c);
inspectClass(obj);
} catch (e) {
log(levels.error, e);
}
});
}
Java.perform(function () {
rootChecking();
});
Java.perform(function () {
//tracePackage();
});
function triggerClient() {
Java.perform(function () {
Java.choose("u11", {
onMatch: (instance) => {
inspectClass(instance);
instance.getRequest.implementation = function (request) {
const body = this.getRequest(request);
console.log(body);
return body;
};
return instance;
},
onComplete: () => {},
});
});
}
Java.perform(function () {
const JString = Java.use("java.lang.String");
const JBase64 = Java.use("android.util.Base64");
const JStandardCharsets = Java.use("java.nio.charset.StandardCharsets");
const cryptoUtil = Java.use(
"com.margento.slovenskezeleznice.util.CryptoUtil"
);
// Decryption
cryptoUtil.a.implementation = function (encrypted, context) {
const jsonByteArray = this.a(encrypted, context);
const json = JString.$new(jsonByteArray);
console.log("Response decrypted: ", json);
console.log("Response encrypted: ", JBase64.encodeToString(encrypted, 2));
return jsonByteArray;
};
// Encryption
cryptoUtil.b.implementation = function (json, context) {
const encrypted = this.b(json, context);
console.log("Request decrypted: ", json);
console.log("Request encrypted: ", JString.$new(encrypted));
return encrypted;
};
cryptoUtil.r.implementation = function (authnticateDeviceResult) {
this.r(authnticateDeviceResult);
console.log("TOKEN: ", authnticateDeviceResult.getToken());
};
});