소스코드에 녹인 경우 - 탐지 변수

//
//  AppDelegate.m
//  JBDetection
//
//  Created by night-ohl on 2020/07/20.
//  Copyright © 2020 night-ohl. All rights reserved.
//

#import "AppDelegate.h"
#include <spawn.h>

@interface AppDelegate ()

@end

@implementation AppDelegate


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.

   //탈옥 여부를 담는 변수
   BOOL jailbroken = NO;
    
   NSString *cydiaPath = @"/Applications/Cydia.app";
   NSString *aptPath = @"/private/var/lib/apt/";
   NSString *applications = @"/User/Applications/";
   NSString *Mobile = @"/Library/MobileSubstrate/MobileSubstrate.dylib";
   NSString *bash = @"/bin/bash";
   NSString *sshd =@"/usr/sbin/sshd";
   NSString *sd = @"/etc/apt";

   
   if([[NSFileManager defaultManager] fileExistsAtPath:cydiaPath]) {
       NSLog(@"cydia detected");
       jailbroken = YES;
   }

   if([[NSFileManager defaultManager] fileExistsAtPath:aptPath]) {
       NSLog(@"/var/lib/apt/ detected");
       jailbroken = YES;
   }

   if ([[NSFileManager defaultManager] fileExistsAtPath:applications]){
       NSLog(@"/User/Applications/ detected");
       jailbroken = YES;
   }

   if ([[NSFileManager defaultManager] fileExistsAtPath:Mobile]){
       NSLog(@"MobileSubstrate.dylib detected");
       jailbroken = YES;
   }

   if ([[NSFileManager defaultManager] fileExistsAtPath:bash]){
       NSLog(@"/bin/bash detected");
       jailbroken = YES;
   }

   if ([[NSFileManager defaultManager] fileExistsAtPath:sshd]){
       NSLog(@"/user/sbin/sshd detected");
       jailbroken = YES;
   }

   if ([[NSFileManager defaultManager] fileExistsAtPath:sd]){
       NSLog(@"/etc/apt/ detected");
       jailbroken = YES;
   }
    
    //여기서 최종적인 판단을 내림
    if(jailbroken == YES)
        exit(1);

    
    return YES;
}


...생략...

@end