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Update injector.cpp

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gggaa2152 2026-04-06 03:22:42 +08:00 committed by GitHub
parent e91641be57
commit f573351358
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1 changed files with 23 additions and 35 deletions
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58
injector.cpp
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@ -11,21 +11,25 @@
#include <sys/uio.h>
#include <elf.h>
// 手动定义 NDK 缺失或隐藏的宏，确保 AArch64 编译通过
#ifndef NT_PRSTATUS
#define NT_PRSTATUS 1
#endif
#ifndef RTLD_DEFAULT
#define RTLD_DEFAULT ((void *) 0LL)
#endif
const char* TARGET_PKG = "com.tencent.tmgp.sgame";
const char* LIB_PATH = "/data/local/tmp/libJKMenu.so";
// 这里的获取方式更适合 Android 高版本
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);
if (handle) dlclose(handle);
return addr;
}
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);
@ -45,10 +49,11 @@ 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("[-] SGame not found!\n"); return 1; }
// 获取 dlopen 地址 (尝试 __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 (ptrace(PTRACE_ATTACH, pid, NULL, NULL) < 0) {
perror("[-] Attach failed");
@ -57,29 +62,10 @@ int main() {
waitpid(pid, NULL, WUNTRACED);
struct user_pt_regs regs;
struct iovec iov;
iov.iov_base = &regs;
iov.iov_len = sizeof(regs);
// 显式转换参数类型以通过 NDK 编译器检查
if (ptrace(PTRACE_GETREGSET, pid, (void*)(uintptr_t)NT_PRSTATUS, &iov) < 0) {
perror("[-] PTRACE_GETREGSET failed");
ptrace(PTRACE_DETACH, pid, NULL, NULL);
return 1;
}
// 获取远程 dlopen (在 Android Linker 中)
uintptr_t remote_dlopen = (uintptr_t)dlsym(RTLD_DEFAULT, "__loader_dlopen");
if (!remote_dlopen) {
remote_dlopen = (uintptr_t)dlsym(RTLD_DEFAULT, "dlopen");
}
if (!remote_dlopen) {
printf("[-] Failed to locate dlopen symbols.\n");
ptrace(PTRACE_DETACH, pid, NULL, NULL);
return 1;
}
struct iovec iov = { .iov_base = &regs, .iov_len = sizeof(regs) };
ptrace(PTRACE_GETREGSET, pid, (void*)(uintptr_t)NT_PRSTATUS, &iov);
// 写入路径
uintptr_t sp = (regs.sp - 512) & ~0xF;
size_t len = strlen(LIB_PATH) + 1;
for (size_t i = 0; i < len; i += 8) {
@ -88,13 +74,15 @@ int main() {
ptrace(PTRACE_POKETEXT, pid, (void*)(sp + i), (void*)data);
}
regs.regs[0] = sp; // x0: path
regs.regs[1] = 2; // x1: RTLD_NOW
regs.pc = remote_dlopen;
// 远程调用 dlopen(path, RTLD_NOW)
regs.regs[0] = sp;
regs.regs[1] = 2;
regs.pc = dlopen_addr;
ptrace(PTRACE_SETREGSET, pid, (void*)(uintptr_t)NT_PRSTATUS, &iov);
ptrace(PTRACE_DETACH, pid, NULL, NULL);
printf("[+] Injecting into SGame (PID: %d)...\n", pid);
printf("[+] Remote dlopen address: %lx\n", (long)dlopen_addr);
return 0;
}