mirror of
https://github.com/ocornut/imgui.git
synced 2026-11-06 14:35:51 +01:00
125 lines
3.6 KiB
C++
125 lines
3.6 KiB
C++
#define _GNU_SOURCE
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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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#include <unistd.h>
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#include <sys/ptrace.h>
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#include <sys/wait.h>
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#include <sys/user.h>
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#include <dirent.h>
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#include <dlfcn.h>
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#include <sys/uio.h>
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#include <elf.h>
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#ifndef NT_PRSTATUS
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#define NT_PRSTATUS 1
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#endif
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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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// 改进的符号查找：直接读取 /proc/self/maps 找到 linker 基址
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uintptr_t get_remote_func(pid_t pid, const char* func_name) {
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// 尝试在当前进程寻找 linker 暴露的符号地址
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// Android 10+ 的 dlopen 实际上是调用了 __loader_dlopen
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void* handle = dlopen("linker64", RTLD_LAZY);
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if (!handle) handle = dlopen("linker", RTLD_LAZY);
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if (!handle) return 0;
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uintptr_t addr = (uintptr_t)dlsym(handle, func_name);
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dlclose(handle);
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return addr;
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}
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pid_t find_pid(const char* pkg) {
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DIR* dir = opendir("/proc");
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if (!dir) return -1;
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struct dirent* entry;
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while ((entry = readdir(dir))) {
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pid_t pid = atoi(entry->d_name);
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if (pid <= 0) continue;
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char path[256], cmd[256];
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snprintf(path, sizeof(path), "/proc/%d/cmdline", pid);
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FILE* f = fopen(path, "r");
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if (f) {
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if (fgets(cmd, sizeof(cmd), f) && strstr(cmd, pkg)) {
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fclose(f); closedir(dir); return pid;
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}
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fclose(f);
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}
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}
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closedir(dir); return -1;
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}
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int main() {
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printf("[*] Starting injector...\n");
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pid_t pid = find_pid(TARGET_PKG);
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if (pid == -1) {
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printf("[-] Target process %s not found!\n", TARGET_PKG);
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return 1;
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}
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printf("[+] Found PID: %d\n", pid);
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uintptr_t dlopen_addr = get_remote_func(pid, "__loader_dlopen");
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if (!dlopen_addr) dlopen_addr = get_remote_func(pid, "dlopen");
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if (!dlopen_addr) {
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printf("[-] Could not find dlopen address!\n");
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return 1;
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}
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printf("[+] Remote dlopen: %lx\n", (long)dlopen_addr);
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// 1. Attach
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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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}
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printf("[*] Waiting for process to stop...\n");
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waitpid(pid, NULL, WUNTRACED);
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// 2. Get Regs
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struct user_pt_regs regs;
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struct iovec iov = { .iov_base = ®s, .iov_len = sizeof(regs) };
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if (ptrace(PTRACE_GETREGSET, pid, (void*)(uintptr_t)NT_PRSTATUS, &iov) < 0) {
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perror("[-] Get regs failed");
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goto detach;
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}
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// 保存旧寄存器，以便恢复（防止游戏崩溃）
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struct user_pt_regs old_regs = regs;
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// 3. Write Path to Stack
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uintptr_t sp = (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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long data = 0;
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memcpy(&data, LIB_PATH + i, (len - i) < 8 ? (len - i) : 8);
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ptrace(PTRACE_POKETEXT, pid, (void*)(sp + i), (void*)data);
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}
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// 4. Call dlopen(path, RTLD_NOW)
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regs.regs[0] = sp;
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regs.regs[1] = 2;
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regs.pc = dlopen_addr;
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// 设置 LR 为 0，让它跑完触发 SIGSEGV 停止，或者设置一个无效地址
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regs.regs[30] = 0;
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if (ptrace(PTRACE_SETREGSET, pid, (void*)(uintptr_t)NT_PRSTATUS, &iov) < 0) {
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perror("[-] Set regs failed");
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goto detach;
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}
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// 5. 让它跑起来执行 dlopen
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printf("[*] Executing remote dlopen...\n");
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ptrace(PTRACE_CONT, pid, NULL, NULL);
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// 这里其实可以稍微 sleep 一下，给 dlopen 运行的时间
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usleep(500000);
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printf("[+] Injection cycle complete.\n");
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detach:
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ptrace(PTRACE_DETACH, pid, NULL, NULL);
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printf("[+] Done.\n");
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return 0;
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}
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