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Bypass Android Root Detection / Bypass RootBeer - August 2019
// $ frida -l antiroot.js -U -f com.example.app --no-pause
// CHANGELOG by Pichaya Morimoto (p.morimoto@sth.sh):
// - I added extra whitelisted items to deal with the latest versions
// of RootBeer/Cordova iRoot as of August 6, 2019
// - The original one just fucked up (kill itself) if Magisk is installed lol
// Credit & Originally written by: https://codeshare.frida.re/@dzonerzy/fridantiroot/
// If this isn't working in the future, check console logs, rootbeer src, or libtool-checker.so
Java.perform(function() {
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.android.vending.billing.InAppBillingService.COIN","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.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);
}
if (cmd == "which") {
var fakeCmd = "justafakecommandthatcannotexistsusingthisshouldthowanexceptionwheneversuiscalled";
send("Bypass which 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 path1 = Memory.readCString(args[0]);
var path = path1.split("/");
var executable = path[path.length - 1];
var shouldFakeReturn = (RootBinaries.indexOf(executable) > -1)
if (shouldFakeReturn) {
Memory.writeUtf8String(args[0], "/ggezxxx");
send("Bypass native fopen >> "+path1);
}
},
onLeave: function(retval) {
}
});
Interceptor.attach(Module.findExportByName("libc.so", "fopen"), {
onEnter: function(args) {
var path1 = Memory.readCString(args[0]);
var path = path1.split("/");
var executable = path[path.length - 1];
var shouldFakeReturn = (RootBinaries.indexOf(executable) > -1)
if (shouldFakeReturn) {
Memory.writeUtf8String(args[0], "/ggezxxx");
send("Bypass native fopen >> "+path1);
}
},
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().implementation = function() {
var text = this.readLine.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;
}
}
});
@m-kasa

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@m-kasa m-kasa commented Jul 3, 2020

How does it work?

@m-kasa

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@m-kasa m-kasa commented Jul 3, 2020

How does it install?

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@m-kasa m-kasa commented Jul 3, 2020

How does it set?

@pak0s

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@pak0s pak0s commented Oct 14, 2020

Install frida and use this command
frida -U -f com.your.app -l rootbeer.js --no-paus

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@InfernoSnake InfernoSnake commented Nov 3, 2020

thanks it realy helped.

@buffer1900

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@buffer1900 buffer1900 commented Dec 1, 2020

crashes the app.

@Saket-Upadhyay

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@Saket-Upadhyay Saket-Upadhyay commented Jan 8, 2021

@poldenais

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@poldenais poldenais commented Jan 19, 2021

works in that the app starts for me but then it crashes right away.

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