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Update injector.cpp

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gggaa2152 2026-04-06 03:34:12 +08:00 committed by GitHub
parent eaf243a390
commit 6373a5bce7
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1 changed files with 38 additions and 16 deletions
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54
injector.cpp
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@ -15,12 +15,13 @@
#define NT_PRSTATUS 1
#endif
// 目标包名
const char* TARGET_PKG = "com.tencent.tmgp.sgame";
const char* LIB_PATH = "/data/local/tmp/libJKMenu.so";
// 根据你的要求修改路径为 /data/1/libJKMenu.so
const char* LIB_PATH = "/data/1/libJKMenu.so";
// 这里的获取方式更适合 Android 高版本
// 获取远程进程中 linker 函数的地址
uintptr_t get_remote_linker_func(pid_t pid, const char* func_name) {
// 尝试直接获取本地地址（通常 linker 加载地址在所有进程中是一致的）
void* handle = dlopen("linker64", RTLD_LAZY);
if (!handle) handle = dlopen("linker", RTLD_LAZY);
uintptr_t addr = (uintptr_t)dlsym(handle, func_name);
@ -28,8 +29,10 @@ uintptr_t get_remote_linker_func(pid_t pid, const char* func_name) {
return addr;
}
// 查找进程 PID
pid_t find_pid(const char* pkg) {
DIR* dir = opendir("/proc");
if (!dir) return -1;
struct dirent* entry;
while ((entry = readdir(dir))) {
pid_t pid = atoi(entry->d_name);
@ -49,23 +52,33 @@ pid_t find_pid(const char* pkg) {
int main() {
pid_t pid = find_pid(TARGET_PKG);
if (pid == -1) { printf("[-] SGame not found!\n"); return 1; }
if (pid == -1) {
printf("[-] Target process %s not found!\n", TARGET_PKG);
return 1;
}
// 获取 dlopen 地址 (尝试 __loader_dlopen)
// 在高版本 Android (10+) 中通常需要 __loader_dlopen
uintptr_t dlopen_addr = get_remote_linker_func(pid, "__loader_dlopen");
if (!dlopen_addr) dlopen_addr = (uintptr_t)dlopen; // 最后的保底
if (!dlopen_addr) {
printf("[!] Falling back to standard dlopen...\n");
dlopen_addr = (uintptr_t)dlopen;
}
if (ptrace(PTRACE_ATTACH, pid, NULL, NULL) < 0) {
perror("[-] Attach failed");
perror("[-] Ptrace attach failed");
return 1;
}
waitpid(pid, NULL, WUNTRACED);
struct user_pt_regs regs;
struct iovec iov = { .iov_base = &regs, .iov_len = sizeof(regs) };
ptrace(PTRACE_GETREGSET, pid, (void*)(uintptr_t)NT_PRSTATUS, &iov);
if (ptrace(PTRACE_GETREGSET, pid, (void*)(uintptr_t)NT_PRSTATUS, &iov) < 0) {
perror("[-] Failed to get registers");
ptrace(PTRACE_DETACH, pid, NULL, NULL);
return 1;
}
// 写入路径
// 在栈上分配空间存放 .so 路径 (从当前 SP 往下偏移)
uintptr_t sp = (regs.sp - 512) & ~0xF;
size_t len = strlen(LIB_PATH) + 1;
for (size_t i = 0; i < len; i += 8) {
@ -74,15 +87,24 @@ int main() {
ptrace(PTRACE_POKETEXT, pid, (void*)(sp + i), (void*)data);
}
// 远程调用 dlopen(path, RTLD_NOW)
regs.regs[0] = sp;
regs.regs[1] = 2;
regs.pc = dlopen_addr;
// 设置寄存器，准备调用 dlopen(path, RTLD_NOW)
// AArch64 调用约定: x0=arg1, x1=arg2
regs.regs[0] = sp; // 第一个参数: .so 路径
regs.regs[1] = 2; // 第二个参数: RTLD_NOW (2)
regs.pc = dlopen_addr; // 跳转执行 dlopen
ptrace(PTRACE_SETREGSET, pid, (void*)(uintptr_t)NT_PRSTATUS, &iov);
if (ptrace(PTRACE_SETREGSET, pid, (void*)(uintptr_t)NT_PRSTATUS, &iov) < 0) {
perror("[-] Failed to set registers");
ptrace(PTRACE_DETACH, pid, NULL, NULL);
return 1;
}
ptrace(PTRACE_DETACH, pid, NULL, NULL);
printf("[+] Injecting into SGame (PID: %d)...\n", pid);
printf("[+] Remote dlopen address: %lx\n", (long)dlopen_addr);
printf("[+] Target: %s (PID: %d)\n", TARGET_PKG, pid);
printf("[+] Path: %s\n", LIB_PATH);
printf("[+] Using dlopen address: %lx\n", (long)dlopen_addr);
printf("[+] Done.\n");
return 0;
}