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Update injector.cpp
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injector.cpp
52
injector.cpp
@ -1,4 +1,6 @@
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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@ -16,6 +18,7 @@
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#endif
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// --- 配置区 ---
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// 注意:根据你之前的记录,包名可能是 com.tencent.tmgp.sgame 或 com.tencent.jkchess
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const char* TARGET_PKG = "com.tencent.tmgp.sgame";
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const char* LIB_PATH = "/data/1/libJKMenu.so";
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@ -28,7 +31,6 @@ uintptr_t get_module_base(pid_t pid, const char* module_name) {
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fp = fopen(filename, "r");
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if (fp) {
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while (fgets(line, sizeof(line), fp)) {
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// 只要包含关键字且是该段的起始地址
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if (strstr(line, module_name)) {
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addr = strtoull(line, NULL, 16);
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break;
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@ -41,7 +43,6 @@ uintptr_t get_module_base(pid_t pid, const char* module_name) {
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// 计算远程 dlopen 地址
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uintptr_t get_remote_dlopen(pid_t pid) {
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// 你的设备 linker 路径在 APEX 中,使用 linker64 关键字最稳
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const char* linker_name = "linker64";
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uintptr_t local_linker = get_module_base(getpid(), linker_name);
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uintptr_t remote_linker = get_module_base(pid, linker_name);
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@ -51,7 +52,6 @@ uintptr_t get_remote_dlopen(pid_t pid) {
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return 0;
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}
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// 优先尝试 __loader_dlopen (Android 8.0+)
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void* local_func = dlsym(RTLD_DEFAULT, "__loader_dlopen");
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if (!local_func) local_func = dlsym(RTLD_DEFAULT, "dlopen");
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@ -81,7 +81,7 @@ pid_t find_pid(const char* pkg) {
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}
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int main() {
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printf("[*] JKMenu Injector v2.0 (Stable)\n");
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printf("[*] JKMenu Injector Starting...\n");
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pid_t pid = find_pid(TARGET_PKG);
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if (pid == -1) {
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@ -93,7 +93,6 @@ int main() {
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if (!dlopen_addr) return 1;
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printf("[+] Remote dlopen: %lx\n", dlopen_addr);
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// 1. Attach 目标进程
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if (ptrace(PTRACE_ATTACH, pid, NULL, NULL) < 0) {
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perror("[-] Attach failed");
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return 1;
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@ -101,14 +100,11 @@ int main() {
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waitpid(pid, NULL, WUNTRACED);
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printf("[+] Attached to %d\n", pid);
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// 2. 备份寄存器现场
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struct user_pt_regs regs, old_regs;
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struct iovec iov = { .iov_base = ®s, .iov_len = sizeof(regs) };
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ptrace(PTRACE_GETREGSET, pid, (void*)(uintptr_t)NT_PRSTATUS, &iov);
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memcpy(&old_regs, ®s, sizeof(regs));
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// 3. 写入 SO 路径字符串到栈空间
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// 留出 512 字节安全区,并 16 字节对齐
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uintptr_t sp_path = (regs.sp - 512) & ~0xF;
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size_t len = strlen(LIB_PATH) + 1;
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for (size_t i = 0; i < len; i += 8) {
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@ -117,54 +113,24 @@ int main() {
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ptrace(PTRACE_POKETEXT, pid, (void*)(sp_path + i), (void*)data);
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}
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// 4. 修改寄存器劫持执行流
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// AArch64 调用约定: x0=arg1, x1=arg2, lr=return_addr, pc=target_func
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regs.regs[0] = sp_path; // 参数1: 路径
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regs.regs[1] = 2; // 参数2: RTLD_NOW
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regs.pc = dlopen_addr; // 跳往 dlopen
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regs.regs[30] = 0; // LR 设为 0,让它运行完产生信号被我们捕获
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regs.regs[0] = sp_path;
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regs.regs[1] = 2;
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regs.pc = dlopen_addr;
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regs.regs[30] = 0;
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ptrace(PTRACE_SETREGSET, pid, (void*)(uintptr_t)NT_PRSTATUS, &iov);
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// 5. 触发并等待执行完成
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printf("[*] Calling remote dlopen...\n");
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ptrace(PTRACE_CONT, pid, NULL, NULL);
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int status;
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waitpid(pid, &status, WUNTRACED);
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// 6. 恢复原始现场 (非常重要,防止崩溃)
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printf("[+] Restoring original state...\n");
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ptrace(PTRACE_SETREGSET, pid, (void*)(uintptr_t)NT_PRSTATUS, (struct iovec *)&old_regs);
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// 7. 释放控制权
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ptrace(PTRACE_DETACH, pid, NULL, NULL);
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printf("[+] Done! Check logcat for 'libJKMenu' messages.\n");
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printf("[+] Done!\n");
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return 0;
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}
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```
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### 🚀 编译与使用指南
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1. **编译**:
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使用 NDK 中的 `aarch64-linux-android-clang` 编译,或者直接在手机端用带有开发环境的终端编译。确保目标架构是 **arm64-v8a**。
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2. **准备环境**:
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```bash
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su
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setenforce 0
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chmod 777 /data/1/libJKMenu.so
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chmod 777 /data/1/jk_injector
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```
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3. **运行监控**:
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开启一个窗口执行你之前的日志过滤命令:
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```bash
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logcat -c && logcat -v color | grep -iE "JKMenu|Dobby|libJKMenu|dlopen" | grep -v "MediaProvider"
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```
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4. **执行注入**:
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在游戏进入主界面(大厅)后运行:
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```bash
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/data/1/jk_injector
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