diff --git a/native/src/main/jni/integrity/CMakeLists.txt b/native/src/main/jni/integrity/CMakeLists.txt
index 17e4f7dbe..e32ee3d44 100644
--- a/native/src/main/jni/integrity/CMakeLists.txt
+++ b/native/src/main/jni/integrity/CMakeLists.txt
@@ -8,6 +8,5 @@ add_library(genuine STATIC
         inline.c
         openat.c
         path.c
-        plt.c
-        pm.c)
+        plt.c)
 target_include_directories(genuine PUBLIC integrity)
diff --git a/native/src/main/jni/integrity/genuine.c b/native/src/main/jni/integrity/genuine.c
index 96ef3a029..0b136ae90 100644
--- a/native/src/main/jni/integrity/genuine.c
+++ b/native/src/main/jni/integrity/genuine.c
@@ -15,7 +15,6 @@
 #include "inline.h"
 #include "apk-sign-v2.h"
 #include "am-proxy.h"
-#include "pm.h"
 #include "common.h"
 #include "openat.h"
 #include "path.h"
@@ -342,6 +341,49 @@ static inline void fill_cannot_find_s(char v[]) {
     v[0xe] = '\0';
 }
 
+static inline void fill_invalid_signature_path_s(char v[]) {
+    // invalid signature, path: %s
+    static unsigned int m = 0;
+
+    if (m == 0) {
+        m = 23;
+    } else if (m == 29) {
+        m = 31;
+    }
+
+    v[0x0] = 'm';
+    v[0x1] = 'k';
+    v[0x2] = 'p';
+    v[0x3] = 'f';
+    v[0x4] = 'd';
+    v[0x5] = '`';
+    v[0x6] = 'n';
+    v[0x7] = '+';
+    v[0x8] = '\x7f';
+    v[0x9] = 'd';
+    v[0xa] = 'i';
+    v[0xb] = 'a';
+    v[0xc] = 'q';
+    v[0xd] = 'e';
+    v[0xe] = 'g';
+    v[0xf] = 'a';
+    v[0x10] = 'q';
+    v[0x11] = '9';
+    v[0x12] = '6';
+    v[0x13] = 'p';
+    v[0x14] = '`';
+    v[0x15] = 'v';
+    v[0x16] = 'k';
+    v[0x17] = '>';
+    v[0x18] = '%';
+    v[0x19] = '#';
+    v[0x1a] = 't';
+    for (unsigned int i = 0; i < 0x1b; ++i) {
+        v[i] ^= ((i + 0x1b) % m);
+    }
+    v[0x1b] = '\0';
+}
+
 enum {
     TYPE_NON,
     TYPE_APK,
@@ -349,7 +391,7 @@ enum {
     TYPE_SO,
 };
 
-static inline int checkMaps(const char *packageName, const char *packagePath) {
+static inline int checkMaps(const char *packageName) {
     FILE *fp = NULL;
     char line[PATH_MAX];
     char maps[0x10];
@@ -435,15 +477,21 @@ static inline int checkMaps(const char *packageName, const char *packagePath) {
 #ifdef DEBUG_MAPS
         LOGI("type: %d, line: %s", type, line);
 #endif
-        if (strstr(path, packageName) != NULL && access(path, F_OK) == 0) {
+        if (strstr(path, packageName) != NULL) {
             if (type == TYPE_APK) {
 #ifdef DEBUG
                 LOGI("check %s", path);
 #endif
-                if (isSameFile(path, packagePath)) {
+                if (isDataApp(path) || isExternalSdApp(path)) {
                     loaded = true;
-                } else {
-                    LOGW(path);
+                    int sign = checkSignature(path);
+                    if (sign) {
+                        fill_invalid_signature_path_s(line);
+                        LOGE(line, path);
+#ifndef DEBUG_FAKE
+                        check = sign < 0 ? CHECK_NOAPK : CHECK_FAKE;
+#endif
+                    }
                 }
             } else if (type == TYPE_DEX) {
 #ifdef ANTI_ODEX
@@ -477,7 +525,7 @@ clean3:
 clean2:
     fill_cannot_find_s(line);
     if (!loaded) {
-        LOGE(line, packagePath);
+        LOGE(line, "");
         check = CHECK_ERROR;
     }
     for (int i = 0; i < symbol.size; ++i) {
@@ -805,49 +853,6 @@ static void handler(int sig __unused) {
     LOGI(v);
 }
 
-static inline void fill_invalid_signature_path_s(char v[]) {
-    // invalid signature, path: %s
-    static unsigned int m = 0;
-
-    if (m == 0) {
-        m = 23;
-    } else if (m == 29) {
-        m = 31;
-    }
-
-    v[0x0] = 'm';
-    v[0x1] = 'k';
-    v[0x2] = 'p';
-    v[0x3] = 'f';
-    v[0x4] = 'd';
-    v[0x5] = '`';
-    v[0x6] = 'n';
-    v[0x7] = '+';
-    v[0x8] = '\x7f';
-    v[0x9] = 'd';
-    v[0xa] = 'i';
-    v[0xb] = 'a';
-    v[0xc] = 'q';
-    v[0xd] = 'e';
-    v[0xe] = 'g';
-    v[0xf] = 'a';
-    v[0x10] = 'q';
-    v[0x11] = '9';
-    v[0x12] = '6';
-    v[0x13] = 'p';
-    v[0x14] = '`';
-    v[0x15] = 'v';
-    v[0x16] = 'k';
-    v[0x17] = '>';
-    v[0x18] = '%';
-    v[0x19] = '#';
-    v[0x1a] = 't';
-    for (unsigned int i = 0; i < 0x1b; ++i) {
-        v[i] ^= ((i + 0x1b) % m);
-    }
-    v[0x1b] = '\0';
-}
-
 #ifdef DEBUG_HOOK_IO
 
 static void check_hook_function(void *handle, const char *name) {
@@ -974,6 +979,11 @@ bool checkGenuine(JNIEnv *env) {
 
     sdk = getSdk();
 
+    if (sdk < 23) {
+        genuine = CHECK_FATAL;
+        goto done;
+    }
+
     uid = getuid();
 
 #ifdef DEBUG_HOOK_SELF
@@ -1017,27 +1027,6 @@ bool checkGenuine(JNIEnv *env) {
     }
 
     char *packageName = getGenuinePackageName();
-    char *packagePath = getPath(env, uid, packageName);
-    if (packageName == NULL) {
-        genuine = CHECK_TRUE;
-        goto clean;
-    }
-    if (packagePath == NULL) {
-        fill_cannot_find_s(v1);
-        LOGE(v1, packageName);
-        genuine = CHECK_FAKE;
-        goto clean;
-    } else {
-        int sign = checkSignature(packagePath);
-        if (sign) {
-            fill_invalid_signature_path_s(v1);
-            LOGE(v1, packagePath);
-#ifndef DEBUG_FAKE
-            genuine = sign < 0 ? CHECK_NOAPK : CHECK_FAKE;
-            goto clean;
-#endif
-        }
-    }
 
     if (uid < 10000) {
         goto clean;
@@ -1051,7 +1040,7 @@ bool checkGenuine(JNIEnv *env) {
 #ifdef DEBUG
     LOGI("checkMaps start");
 #endif
-    genuine = checkMaps(packageName, packagePath);
+    genuine = checkMaps(packageName);
 #endif
 
 #ifdef CHECK_HOOK
@@ -1085,7 +1074,6 @@ clean:
 #ifdef GENUINE_NAME
     free(packageName);
 #endif
-    free(packagePath);
 #ifdef DEBUG
     LOGI("JNI_OnLoad end, genuine: %d", genuine);
 #endif
diff --git a/native/src/main/jni/integrity/genuine.h b/native/src/main/jni/integrity/genuine.h
index 7f846d051..28c38fe99 100644
--- a/native/src/main/jni/integrity/genuine.h
+++ b/native/src/main/jni/integrity/genuine.h
@@ -4,7 +4,6 @@
 #define GENUINE_SIZE 0x02d1
 #define GENUINE_HASH 0x9a99ba0c
 
-#ifdef NDEBUG
 /* genuine false handler */
 #define GENUINE_FALSE_CRASH
 // #define GENUINE_FALSE_NATIVE
@@ -22,11 +21,11 @@
 // #define GENUINE_ODEX_NATIVE
 
 /* genuine dex handler */
-// #define GENUINE_DEX_CRASH
+#define GENUINE_DEX_CRASH
 // #define GENUINE_DEX_NATIVE
 
 /* genuine proxy handler */
-// #define GENUINE_PROXY_CRASH
+#define GENUINE_PROXY_CRASH
 // #define GENUINE_PROXY_NATIVE
 
 /* genuine error handler */
@@ -40,6 +39,5 @@
 /* genuine noapk handler */
 #define GENUINE_NOAPK_CRASH
 // #define GENUINE_NOAPK_NATIVE
-#endif
 
 bool checkGenuine(JNIEnv *env);
diff --git a/native/src/main/jni/integrity/path.c b/native/src/main/jni/integrity/path.c
index 586feb017..7332e2f3a 100644
--- a/native/src/main/jni/integrity/path.c
+++ b/native/src/main/jni/integrity/path.c
@@ -58,4 +58,38 @@ bool isDataApp(const char *str) {
            && *++str == 'p'
            && *++str == 'p'
            && *++str == '/';
+}
+
+bool isAsecApp(const char *str) {
+    return str != NULL
+           && *str == '/'
+           && *++str == 'm'
+           && *++str == 'n'
+           && *++str == 't'
+           && *++str == '/'
+           && *++str == 'a'
+           && *++str == 's'
+           && *++str == 'e'
+           && *++str == 'c'
+           && *++str == '/';
+}
+
+bool isExpandApp(const char *str) {
+    return str != NULL
+           && *str == '/'
+           && *++str == 'm'
+           && *++str == 'n'
+           && *++str == 't'
+           && *++str == '/'
+           && *++str == 'e'
+           && *++str == 'x'
+           && *++str == 'p'
+           && *++str == 'a'
+           && *++str == 'n'
+           && *++str == 'd'
+           && *++str == '/';
+}
+
+bool isExternalSdApp(const char *str) {
+    return isAsecApp(str) || isExpandApp(str);
 }
\ No newline at end of file
diff --git a/native/src/main/jni/integrity/path.h b/native/src/main/jni/integrity/path.h
index d40124ff1..813e8b681 100644
--- a/native/src/main/jni/integrity/path.h
+++ b/native/src/main/jni/integrity/path.h
@@ -11,4 +11,6 @@ bool isThirdParty(const char *str);
 
 bool isDataApp(const char *str);
 
+bool isExternalSdApp(const char *str);
+
 #endif //BREVENT_PATH_H
diff --git a/native/src/main/jni/integrity/pm.c b/native/src/main/jni/integrity/pm.c
deleted file mode 100644
index ec7a39dde..000000000
--- a/native/src/main/jni/integrity/pm.c
+++ /dev/null
@@ -1,747 +0,0 @@
-//
-// Created by Thom on 2019/3/15.
-//
-
-#include <string.h>
-#include <android/log.h>
-#include "common.h"
-#include "pm.h"
-
-static inline void fill_android_os_ServiceManager(char v[]) {
-    // android/os/ServiceManager
-    static unsigned int m = 0;
-
-    if (m == 0) {
-        m = 23;
-    } else if (m == 29) {
-        m = 31;
-    }
-
-    v[0x0] = 'c';
-    v[0x1] = 'm';
-    v[0x2] = '`';
-    v[0x3] = 'w';
-    v[0x4] = 'i';
-    v[0x5] = 'n';
-    v[0x6] = 'l';
-    v[0x7] = '&';
-    v[0x8] = 'e';
-    v[0x9] = 'x';
-    v[0xa] = '#';
-    v[0xb] = '^';
-    v[0xc] = 'k';
-    v[0xd] = '}';
-    v[0xe] = 'f';
-    v[0xf] = 'x';
-    v[0x10] = 'q';
-    v[0x11] = 'v';
-    v[0x12] = 'Y';
-    v[0x13] = 't';
-    v[0x14] = 'x';
-    v[0x15] = 'a';
-    v[0x16] = 'f';
-    v[0x17] = 'g';
-    v[0x18] = 'q';
-    for (unsigned int i = 0; i < 0x19; ++i) {
-        v[i] ^= ((i + 0x19) % m);
-    }
-    v[0x19] = '\0';
-}
-
-static inline void fill_getService(char v[]) {
-    // getService
-    static unsigned int m = 0;
-
-    if (m == 0) {
-        m = 7;
-    } else if (m == 11) {
-        m = 13;
-    }
-
-    v[0x0] = 'd';
-    v[0x1] = 'a';
-    v[0x2] = 'q';
-    v[0x3] = 'U';
-    v[0x4] = 'e';
-    v[0x5] = 's';
-    v[0x6] = 't';
-    v[0x7] = 'j';
-    v[0x8] = 'g';
-    v[0x9] = '`';
-    for (unsigned int i = 0; i < 0xa; ++i) {
-        v[i] ^= ((i + 0xa) % m);
-    }
-    v[0xa] = '\0';
-}
-
-static inline void fill_getService_signature(char v[]) {
-    // (Ljava/lang/String;)Landroid/os/IBinder;
-    static unsigned int m = 0;
-
-    if (m == 0) {
-        m = 37;
-    } else if (m == 41) {
-        m = 43;
-    }
-
-    v[0x0] = '+';
-    v[0x1] = 'H';
-    v[0x2] = 'o';
-    v[0x3] = 'g';
-    v[0x4] = 'q';
-    v[0x5] = 'i';
-    v[0x6] = '&';
-    v[0x7] = 'f';
-    v[0x8] = 'j';
-    v[0x9] = 'b';
-    v[0xa] = 'j';
-    v[0xb] = '!';
-    v[0xc] = '\\';
-    v[0xd] = 'd';
-    v[0xe] = 'c';
-    v[0xf] = '{';
-    v[0x10] = '}';
-    v[0x11] = 's';
-    v[0x12] = '.';
-    v[0x13] = '?';
-    v[0x14] = '[';
-    v[0x15] = 'y';
-    v[0x16] = 'w';
-    v[0x17] = '~';
-    v[0x18] = 'i';
-    v[0x19] = 's';
-    v[0x1a] = 't';
-    v[0x1b] = 'z';
-    v[0x1c] = '0';
-    v[0x1d] = 'O';
-    v[0x1e] = 'R';
-    v[0x1f] = '\r';
-    v[0x20] = 'j';
-    v[0x21] = 'f';
-    v[0x22] = 'i';
-    v[0x23] = 'o';
-    v[0x24] = 'f';
-    v[0x25] = 'f';
-    v[0x26] = 'v';
-    v[0x27] = '>';
-    for (unsigned int i = 0; i < 0x28; ++i) {
-        v[i] ^= ((i + 0x28) % m);
-    }
-    v[0x28] = '\0';
-}
-
-static inline void fill_package(char v[]) {
-    // package
-    static unsigned int m = 0;
-
-    if (m == 0) {
-        m = 5;
-    } else if (m == 7) {
-        m = 11;
-    }
-
-    v[0x0] = 'r';
-    v[0x1] = 'b';
-    v[0x2] = 'g';
-    v[0x3] = 'k';
-    v[0x4] = '`';
-    v[0x5] = 'e';
-    v[0x6] = 'f';
-    for (unsigned int i = 0; i < 0x7; ++i) {
-        v[i] ^= ((i + 0x7) % m);
-    }
-    v[0x7] = '\0';
-}
-
-static inline void fill_android_content_pm_IPackageManager$Stub(char v[]) {
-    // android/content/pm/IPackageManager$Stub
-    static unsigned int m = 0;
-
-    if (m == 0) {
-        m = 37;
-    } else if (m == 41) {
-        m = 43;
-    }
-
-    v[0x0] = 'c';
-    v[0x1] = 'm';
-    v[0x2] = '`';
-    v[0x3] = 'w';
-    v[0x4] = 'i';
-    v[0x5] = 'n';
-    v[0x6] = 'l';
-    v[0x7] = '&';
-    v[0x8] = 'i';
-    v[0x9] = 'd';
-    v[0xa] = 'b';
-    v[0xb] = 'y';
-    v[0xc] = 'k';
-    v[0xd] = 'a';
-    v[0xe] = 'd';
-    v[0xf] = '>';
-    v[0x10] = 'b';
-    v[0x11] = '~';
-    v[0x12] = ';';
-    v[0x13] = '\\';
-    v[0x14] = 'F';
-    v[0x15] = 'v';
-    v[0x16] = '{';
-    v[0x17] = 'r';
-    v[0x18] = '{';
-    v[0x19] = '|';
-    v[0x1a] = 'y';
-    v[0x1b] = 'P';
-    v[0x1c] = '\x7f';
-    v[0x1d] = 'q';
-    v[0x1e] = 'A';
-    v[0x1f] = 'F';
-    v[0x20] = 'G';
-    v[0x21] = 'Q';
-    v[0x22] = '\x00';
-    v[0x23] = 'S';
-    v[0x24] = 'u';
-    v[0x25] = 'w';
-    v[0x26] = 'a';
-    for (unsigned int i = 0; i < 0x27; ++i) {
-        v[i] ^= ((i + 0x27) % m);
-    }
-    v[0x27] = '\0';
-}
-
-static inline void fill_asInterface(char v[]) {
-    // asInterface
-    static unsigned int m = 0;
-
-    if (m == 0) {
-        m = 7;
-    } else if (m == 11) {
-        m = 13;
-    }
-
-    v[0x0] = 'e';
-    v[0x1] = 'v';
-    v[0x2] = 'O';
-    v[0x3] = 'n';
-    v[0x4] = 'u';
-    v[0x5] = 'g';
-    v[0x6] = 'q';
-    v[0x7] = 'b';
-    v[0x8] = 'd';
-    v[0x9] = 'e';
-    v[0xa] = 'e';
-    for (unsigned int i = 0; i < 0xb; ++i) {
-        v[i] ^= ((i + 0xb) % m);
-    }
-    v[0xb] = '\0';
-}
-
-static inline void fill_asInterface_signature(char v[]) {
-    // (Landroid/os/IBinder;)Landroid/content/pm/IPackageManager;
-    static unsigned int m = 0;
-
-    if (m == 0) {
-        m = 53;
-    } else if (m == 59) {
-        m = 61;
-    }
-
-    v[0x0] = '-';
-    v[0x1] = 'J';
-    v[0x2] = 'f';
-    v[0x3] = 'f';
-    v[0x4] = 'm';
-    v[0x5] = 'x';
-    v[0x6] = 'd';
-    v[0x7] = 'e';
-    v[0x8] = 'i';
-    v[0x9] = '!';
-    v[0xa] = '`';
-    v[0xb] = 'c';
-    v[0xc] = '>';
-    v[0xd] = '[';
-    v[0xe] = 'Q';
-    v[0xf] = '}';
-    v[0x10] = '{';
-    v[0x11] = 'r';
-    v[0x12] = 'r';
-    v[0x13] = 'j';
-    v[0x14] = '"';
-    v[0x15] = '3';
-    v[0x16] = 'W';
-    v[0x17] = '}';
-    v[0x18] = 's';
-    v[0x19] = 'z';
-    v[0x1a] = 'm';
-    v[0x1b] = 'O';
-    v[0x1c] = 'H';
-    v[0x1d] = 'F';
-    v[0x1e] = '\x0c';
-    v[0x1f] = 'G';
-    v[0x20] = 'J';
-    v[0x21] = 'H';
-    v[0x22] = 'S';
-    v[0x23] = 'M';
-    v[0x24] = 'G';
-    v[0x25] = '^';
-    v[0x26] = '\x04';
-    v[0x27] = '\\';
-    v[0x28] = '@';
-    v[0x29] = '\x01';
-    v[0x2a] = 'f';
-    v[0x2b] = '`';
-    v[0x2c] = 'P';
-    v[0x2d] = 'Q';
-    v[0x2e] = 'X';
-    v[0x2f] = 'U';
-    v[0x30] = 'g';
-    v[0x31] = 'd';
-    v[0x32] = 'O';
-    v[0x33] = 'b';
-    v[0x34] = 'j';
-    v[0x35] = 'd';
-    v[0x36] = 'a';
-    v[0x37] = 'b';
-    v[0x38] = 'z';
-    v[0x39] = '2';
-    for (unsigned int i = 0; i < 0x3a; ++i) {
-        v[i] ^= ((i + 0x3a) % m);
-    }
-    v[0x3a] = '\0';
-}
-
-static inline void fill_getApplicationInfo(char v[]) {
-    // getApplicationInfo
-    static unsigned int m = 0;
-
-    if (m == 0) {
-        m = 17;
-    } else if (m == 19) {
-        m = 23;
-    }
-
-    v[0x0] = 'f';
-    v[0x1] = 'g';
-    v[0x2] = 'w';
-    v[0x3] = 'E';
-    v[0x4] = 'u';
-    v[0x5] = 'v';
-    v[0x6] = 'k';
-    v[0x7] = 'a';
-    v[0x8] = 'j';
-    v[0x9] = 'k';
-    v[0xa] = '\x7f';
-    v[0xb] = 'e';
-    v[0xc] = 'b';
-    v[0xd] = '`';
-    v[0xe] = 'F';
-    v[0xf] = '~';
-    v[0x10] = 'f';
-    v[0x11] = 'n';
-    for (unsigned int i = 0; i < 0x12; ++i) {
-        v[i] ^= ((i + 0x12) % m);
-    }
-    v[0x12] = '\0';
-}
-
-static inline void fill_getApplicationInfo_signature(char v[]) {
-    // (Ljava/lang/String;II)Landroid/content/pm/ApplicationInfo;
-    static unsigned int m = 0;
-
-    if (m == 0) {
-        m = 53;
-    } else if (m == 59) {
-        m = 61;
-    }
-
-    v[0x0] = '-';
-    v[0x1] = 'J';
-    v[0x2] = 'm';
-    v[0x3] = 'i';
-    v[0x4] = '\x7f';
-    v[0x5] = 'k';
-    v[0x6] = '$';
-    v[0x7] = '`';
-    v[0x8] = 'l';
-    v[0x9] = '`';
-    v[0xa] = 'h';
-    v[0xb] = '?';
-    v[0xc] = 'B';
-    v[0xd] = 'f';
-    v[0xe] = 'a';
-    v[0xf] = '}';
-    v[0x10] = '{';
-    v[0x11] = 'q';
-    v[0x12] = ',';
-    v[0x13] = 'Q';
-    v[0x14] = 'P';
-    v[0x15] = '3';
-    v[0x16] = 'W';
-    v[0x17] = '}';
-    v[0x18] = 's';
-    v[0x19] = 'z';
-    v[0x1a] = 'm';
-    v[0x1b] = 'O';
-    v[0x1c] = 'H';
-    v[0x1d] = 'F';
-    v[0x1e] = '\x0c';
-    v[0x1f] = 'G';
-    v[0x20] = 'J';
-    v[0x21] = 'H';
-    v[0x22] = 'S';
-    v[0x23] = 'M';
-    v[0x24] = 'G';
-    v[0x25] = '^';
-    v[0x26] = '\x04';
-    v[0x27] = '\\';
-    v[0x28] = '@';
-    v[0x29] = '\x01';
-    v[0x2a] = 'n';
-    v[0x2b] = '@';
-    v[0x2c] = 'A';
-    v[0x2d] = '^';
-    v[0x2e] = 'Z';
-    v[0x2f] = 'W';
-    v[0x30] = 'a';
-    v[0x31] = 'u';
-    v[0x32] = 'k';
-    v[0x33] = 'l';
-    v[0x34] = 'j';
-    v[0x35] = 'L';
-    v[0x36] = 'h';
-    v[0x37] = 'a';
-    v[0x38] = 'g';
-    v[0x39] = '2';
-    for (unsigned int i = 0; i < 0x3a; ++i) {
-        v[i] ^= ((i + 0x3a) % m);
-    }
-    v[0x3a] = '\0';
-}
-
-static inline void fill_sourceDir(char v[]) {
-    // sourceDir
-    static unsigned int m = 0;
-
-    if (m == 0) {
-        m = 7;
-    } else if (m == 11) {
-        m = 13;
-    }
-
-    v[0x0] = 'q';
-    v[0x1] = 'l';
-    v[0x2] = 'q';
-    v[0x3] = 'w';
-    v[0x4] = 'e';
-    v[0x5] = 'e';
-    v[0x6] = 'E';
-    v[0x7] = 'k';
-    v[0x8] = 'q';
-    for (unsigned int i = 0; i < 0x9; ++i) {
-        v[i] ^= ((i + 0x9) % m);
-    }
-    v[0x9] = '\0';
-}
-
-static inline void fill_sourceDir_signature(char v[]) {
-    // Ljava/lang/String;
-    static unsigned int m = 0;
-
-    if (m == 0) {
-        m = 17;
-    } else if (m == 19) {
-        m = 23;
-    }
-
-    v[0x0] = 'M';
-    v[0x1] = 'h';
-    v[0x2] = 'b';
-    v[0x3] = 'r';
-    v[0x4] = 'd';
-    v[0x5] = ')';
-    v[0x6] = 'k';
-    v[0x7] = 'i';
-    v[0x8] = 'g';
-    v[0x9] = 'm';
-    v[0xa] = '$';
-    v[0xb] = '_';
-    v[0xc] = 'y';
-    v[0xd] = '|';
-    v[0xe] = 'f';
-    v[0xf] = '~';
-    v[0x10] = 'g';
-    v[0x11] = ':';
-    for (unsigned int i = 0; i < 0x12; ++i) {
-        v[i] ^= ((i + 0x12) % m);
-    }
-    v[0x12] = '\0';
-}
-
-static inline void fill_android_os_BinderProxy(char v[]) {
-    // android/os/BinderProxy
-    static unsigned int m = 0;
-
-    if (m == 0) {
-        m = 19;
-    } else if (m == 23) {
-        m = 29;
-    }
-
-    v[0x0] = 'b';
-    v[0x1] = 'j';
-    v[0x2] = 'a';
-    v[0x3] = 't';
-    v[0x4] = 'h';
-    v[0x5] = 'a';
-    v[0x6] = 'm';
-    v[0x7] = '%';
-    v[0x8] = 'd';
-    v[0x9] = '\x7f';
-    v[0xa] = '"';
-    v[0xb] = 'L';
-    v[0xc] = 'f';
-    v[0xd] = '~';
-    v[0xe] = 'u';
-    v[0xf] = 'w';
-    v[0x10] = 'r';
-    v[0x11] = 'Q';
-    v[0x12] = 'p';
-    v[0x13] = 'l';
-    v[0x14] = '|';
-    v[0x15] = '|';
-    for (unsigned int i = 0; i < 0x16; ++i) {
-        v[i] ^= ((i + 0x16) % m);
-    }
-    v[0x16] = '\0';
-}
-
-static inline void fill_invalid_package_manager_path_s(char v[]) {
-    // invalid package manager, path: %s
-    static unsigned int m = 0;
-
-    if (m == 0) {
-        m = 31;
-    } else if (m == 37) {
-        m = 41;
-    }
-
-    v[0x0] = 'k';
-    v[0x1] = 'm';
-    v[0x2] = 'r';
-    v[0x3] = 'd';
-    v[0x4] = 'j';
-    v[0x5] = 'n';
-    v[0x6] = 'l';
-    v[0x7] = ')';
-    v[0x8] = 'z';
-    v[0x9] = 'j';
-    v[0xa] = 'o';
-    v[0xb] = 'f';
-    v[0xc] = 'o';
-    v[0xd] = 'h';
-    v[0xe] = 'u';
-    v[0xf] = '1';
-    v[0x10] = '\x7f';
-    v[0x11] = 'r';
-    v[0x12] = 'z';
-    v[0x13] = 't';
-    v[0x14] = 'q';
-    v[0x15] = 'r';
-    v[0x16] = 'j';
-    v[0x17] = '5';
-    v[0x18] = ':';
-    v[0x19] = 'k';
-    v[0x1a] = '}';
-    v[0x1b] = 'i';
-    v[0x1c] = 'v';
-    v[0x1d] = ':';
-    v[0x1e] = '!';
-    v[0x1f] = '\'';
-    v[0x20] = 'p';
-    for (unsigned int i = 0; i < 0x21; ++i) {
-        v[i] ^= ((i + 0x21) % m);
-    }
-    v[0x21] = '\0';
-}
-
-char *getPath(JNIEnv *env, int uid, const char *packageName) {
-    char *path = NULL;
-    char v1[0x80], v2[0x80];
-
-    if (packageName == NULL) {
-        return NULL;
-    }
-    fill_android_os_ServiceManager(v2); // 0x19 + 1
-    jclass classServiceManager = (*env)->FindClass(env, v2);
-    if (classServiceManager == NULL) {
-#ifdef DEBUG
-        LOGW("cannot find ServiceManager");
-#endif
-        (*env)->ExceptionClear(env);
-        return NULL;
-    }
-    debug(env, "ServiceManager: %s", classServiceManager);
-
-    fill_getService(v1); // 0xa + 1
-    fill_getService_signature(v2); // 0x28 + 1
-    jmethodID method = (*env)->GetStaticMethodID(env, classServiceManager, v1, v2);
-#ifdef DEBUG
-    LOGI("ServiceManager.getService: %p", method);
-#endif
-    if (method == NULL) {
-        (*env)->ExceptionClear(env);
-        goto cleanClassServiceManager;
-    }
-
-    fill_package(v2); // 0x8 + 1
-    jstring stringPackage = (*env)->NewStringUTF(env, v2);
-    jobject service = (*env)->CallStaticObjectMethod(env, classServiceManager, method,
-                                                     stringPackage);
-    if (service == NULL) {
-#ifdef DEBUG
-        LOGW("cannot find package service");
-#endif
-        if ((*env)->ExceptionCheck(env)) {
-#ifdef DEBUG
-            (*env)->ExceptionDescribe(env);
-#endif
-            (*env)->ExceptionClear(env);
-        }
-        goto cleanStringPackage;
-    }
-#ifdef DEBUG
-    debug(env, "package service: %s", service);
-#endif
-
-    fill_android_content_pm_IPackageManager$Stub(v2); // 0x27 + 1
-    jclass classIPackageManager$Stub = (*env)->FindClass(env, v2);
-    debug(env, "IPackageManager$Stub: %s", classIPackageManager$Stub);
-    if (classIPackageManager$Stub == NULL) {
-#ifdef DEBUG
-        LOGW("cannot find IPackageManager$Stub");
-#endif
-        (*env)->ExceptionClear(env);
-        goto cleanService;
-    }
-
-    fill_asInterface(v1);
-    fill_asInterface_signature(v2);
-    method = (*env)->GetStaticMethodID(env, classIPackageManager$Stub, v1, v2);
-#ifdef DEBUG
-    LOGI("asInterface: %p", method);
-#endif
-    if (method == NULL) {
-        (*env)->ExceptionClear(env);
-        goto cleanClassIPackageManager$Stub;
-    }
-
-    jobject IPackageManager = (*env)->CallStaticObjectMethod(env, classIPackageManager$Stub, method,
-                                                             service);
-    if (IPackageManager == NULL) {
-#ifdef DEBUG
-        LOGW("cannot call asInterface");
-#endif
-        if ((*env)->ExceptionCheck(env)) {
-#ifdef DEBUG
-            (*env)->ExceptionDescribe(env);
-#endif
-            (*env)->ExceptionClear(env);
-        }
-        goto cleanClassIPackageManager$Stub;
-    }
-    debug(env, "IPackageManager: %s", IPackageManager);
-
-    // Landroid/content/pm/IPackageManager;->getApplicationInfo(Ljava/lang/String;II)Landroid/content/pm/ApplicationInfo;
-    jclass classIPackageManager = (*env)->GetObjectClass(env, IPackageManager);
-    debug(env, "classIPackageManager: %s", classIPackageManager);
-    fill_getApplicationInfo(v1);
-    fill_getApplicationInfo_signature(v2);
-    method = (*env)->GetMethodID(env, classIPackageManager, v1, v2);
-#ifdef DEBUG
-    LOGI("getApplicationInfo: %p", method);
-#endif
-    if (method == NULL) {
-        (*env)->ExceptionClear(env);
-        goto cleanClassIPackageManager;
-    }
-
-    jstring stringPackageName = (*env)->NewStringUTF(env, packageName);
-    int userId = uid / 100000;
-    jobject applicationInfo = (*env)->CallObjectMethod(env, IPackageManager, method,
-                                                       stringPackageName, 0, userId);
-    debug(env, "applicationInfo: %s", applicationInfo);
-    if (applicationInfo == NULL) {
-        if ((*env)->ExceptionCheck(env)) {
-#ifdef DEBUG
-            (*env)->ExceptionDescribe(env);
-#endif
-            (*env)->ExceptionClear(env);
-        }
-        goto cleanStringPackageName;
-    }
-
-    jclass classApplicationInfo = (*env)->GetObjectClass(env, applicationInfo);
-    debug(env, "class applicationInfo: %s", classApplicationInfo);
-
-    fill_sourceDir(v1);
-    fill_sourceDir_signature(v2);
-    jfieldID field = (*env)->GetFieldID(env, classApplicationInfo, v1, v2);
-#ifdef DEBUG
-    LOGI("sourceDir: %p", field);
-#endif
-    if (field == NULL) {
-        (*env)->ExceptionClear(env);
-        goto cleanClassApplicationInfo;
-    }
-    jstring sourceDir = (*env)->GetObjectField(env, applicationInfo, field);
-    debug(env, "sourceDir: %s", sourceDir);
-    const char *chars = (*env)->GetStringUTFChars(env, sourceDir, NULL);
-
-    fill_android_os_BinderProxy(v2); // 0x16 + 1
-    jclass classBinderProxy = (*env)->FindClass(env, v2);
-    if (classBinderProxy == NULL) {
-#ifdef DEBUG
-        LOGW("cannot find BinderProxy");
-#endif
-        (*env)->ExceptionClear(env);
-    } else {
-        debug(env, "BinderProxy: %s", classBinderProxy);
-    }
-
-    jclass serviceClass = (*env)->GetObjectClass(env, service);
-    debug(env, "service class: %s", serviceClass);
-    if (classBinderProxy != NULL && !(*env)->IsSameObject(env, serviceClass, classBinderProxy)) {
-        fill_invalid_package_manager_path_s(v2);
-        LOGW(v2, chars);
-    }
-    path = strdup(chars);
-
-#ifdef DEBUG
-    LOGI("path: %s", chars);
-#endif
-
-    (*env)->DeleteLocalRef(env, serviceClass);
-    if (classBinderProxy != NULL) {
-        (*env)->DeleteLocalRef(env, classBinderProxy);
-    }
-    (*env)->ReleaseStringUTFChars(env, sourceDir, chars);
-    (*env)->DeleteLocalRef(env, sourceDir);
-cleanClassApplicationInfo:
-    (*env)->DeleteLocalRef(env, classApplicationInfo);
-    (*env)->DeleteLocalRef(env, applicationInfo);
-cleanStringPackageName:
-    (*env)->DeleteLocalRef(env, stringPackageName);
-cleanClassIPackageManager:
-    (*env)->DeleteLocalRef(env, classIPackageManager);
-    (*env)->DeleteLocalRef(env, IPackageManager);
-cleanClassIPackageManager$Stub:
-    (*env)->DeleteLocalRef(env, classIPackageManager$Stub);
-cleanService:
-    (*env)->DeleteLocalRef(env, service);
-cleanStringPackage:
-    (*env)->DeleteLocalRef(env, stringPackage);
-cleanClassServiceManager:
-    (*env)->DeleteLocalRef(env, classServiceManager);
-
-    return path;
-}
-
diff --git a/native/src/main/jni/integrity/pm.h b/native/src/main/jni/integrity/pm.h
deleted file mode 100644
index 5e1e4433b..000000000
--- a/native/src/main/jni/integrity/pm.h
+++ /dev/null
@@ -1,20 +0,0 @@
-//
-// Created by Thom on 2019/3/15.
-//
-
-#ifndef BREVENT_PM_H
-#define BREVENT_PM_H
-
-#include <jni.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-char *getPath(JNIEnv *env, int uid, const char *name);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif //BREVENT_PM_H