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Shamrock: bypass emu detection

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This commit is contained in:
WhiteChi 2023-11-27 00:28:43 +08:00
parent 911b003f7f
commit 3518f974cc
1 changed files with 20 additions and 9 deletions
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29
xposed/src/main/cpp/clover.cpp
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@ -19,6 +19,7 @@ static std::vector<std::string> qemu_detect_props = {
}; };
int (*backup_system_property_get)(const char *name, char *value); int (*backup_system_property_get)(const char *name, char *value);
FILE* (*backup_fopen)(const char *filename, const char *mode);
int fake_system_property_get(const char *name, char *value) { int fake_system_property_get(const char *name, char *value) {
for (auto &prop: qemu_detect_props) { for (auto &prop: qemu_detect_props) {
@ -67,16 +68,22 @@ int fake_system_property_get(const char *name, char *value) {
return backup_system_property_get(name, value); return backup_system_property_get(name, value);
} }
FILE* fake_fopen(const char *filename, const char *mode) {
if (strstr(filename, "qemu_pipe")) {
LOGI("[Shamrock] bypass qemu detection");
return nullptr;
}
if (strstr(filename, "libhoudini.so")) {
LOGI("[Shamrock] bypass emu detection");
return nullptr;
}
return backup_fopen(filename, mode);
}
void on_library_loaded(const char *name, void *handle) { void on_library_loaded(const char *name, void *handle) {
auto libraryName = std::string(name);
if (libraryName.ends_with("libc.so") || libraryName.ends_with("libfekit.so")) {
void *target = dlsym(handle, "__system_property_get");
if (target != nullptr) {
hook_function(target, (void *)fake_system_property_get, (void **) &backup_system_property_get);
} else {
LOGE("[Shamrock] failed to hook __system_property_get");
}
}
} }
extern "C" [[gnu::visibility("default")]] [[gnu::used]] extern "C" [[gnu::visibility("default")]] [[gnu::used]]
@ -100,6 +107,10 @@ extern "C" [[gnu::visibility("default")]] [[gnu::used]]
NativeOnModuleLoaded native_init(const NativeAPIEntries *entries) { NativeOnModuleLoaded native_init(const NativeAPIEntries *entries) {
hook_function = entries->hook_func; hook_function = entries->hook_func;
LOGI("[Shamrock] LSPosed NativeModule Init: %p", hook_function); LOGI("[Shamrock] LSPosed NativeModule Init: %p", hook_function);
hook_function((void*) __system_property_get, (void *)fake_system_property_get, (void **) &backup_system_property_get);
hook_function((void*) fopen, (void*) fake_fopen, (void**) &backup_fopen);
return on_library_loaded; return on_library_loaded;
} }