Problems Use libnative_lib.so in jniLibs

[xmutzlq]

first copy libnative_lib.so to jniLibs
second run app
finally It's not detecting anything at all

[darvincisec]

Can you be specific on what detection is not working? As mentioned in other issue, GG is updated to bypass the detection mentioned in this project. But debuggers (gdb/lldb) and frida can be detected.

[xmutzlq]

sorry, I mean to say it like this:
use this project built result cmake/armeabi-v7a/libnative-lib.so and copy armeabi-v7a/libnative-lib.so to sourceSets.main.jniLibs， comment out externalNativeBuild， run project， test debuggers， this way can not anti-debug；
but when I use externalNativeBuild.cmake， comment out jniLibs.srcDirs， run project， test debuggers， debuggers (gdb/lldb) that can be anti.

so I do not understand why use libnative-lib.so the way can no anti-debug?

app structure like this：
app
-- src
--main
--cpp
--java
--jniLibs
--armeabi-v7a
--libnative-lib.so

build.gradle(app) like this:
`sourceSets {
main {
jniLibs.srcDirs = ['src/main/jniLibs/']
}
}

// externalNativeBuild {
// cmake {
// path "src/main/cpp/CMakeLists.txt"
// version "3.10.2"
// }
// }`

[darvincisec]

It should work nevertheless. Did you load the library when application starts?

[xmutzlq]

yes, I did
this is my step：
first I have downloaded Anti-Debugger-Memdump.apk and decompression it， get libnative-lib.so from lib/armeabi-v7a;
second I have downloaded this project and created the jniLibs/armeabi-v7a directory then put libnative-lib.so into this directory；
finally, comment out externalNativeBuild in build.gradle(app) and run the project and test debuggers， but the result is can not anti-debug
In MainActivty
static { System.loadLibrary("native-lib"); }
In native-lib.c
//Upon loading the library, this function annotated as constructor starts executing
__attribute__((constructor)) void detectMemoryAccess() { ... }
so I think jniLibs way should work， but it can not anti-debug

[darvincisec]

Do you see the execution of native code? are you able to debug the binary ?