// https://vk.com/id650525154

long arm_analyze_library_size(const char* szLibName)
{
    char filename[0xFF] = {0},
    buffer[2048] = {0};
    FILE *fp = 0;
    long size = 0;

    sprintf( filename, "/data/data/com.rockstargames.gtasa/lib/%s", szLibName );

    fp = fopen( filename, "rt" );
    if(fp)
    {
        fseek(fp, 0, SEEK_END);
        size = ftell(fp);

        // LOG("[%s] size: 0x%X", szLibName, size);

        fclose(fp);
    }

    return size;
}

bool arm_diagnostics_sizes()
{
    LOG("ARM: diagnotics sizes..");

    long gtasaSize = arm_analyze_library_size("libGTASA.so");
    long hmtaSize = arm_analyze_library_size("libhmta.so");
    long bassSize = arm_analyze_library_size("libbass.so");
    long scAndSize = arm_analyze_library_size("libSCAnd.so");
    long immEmuSize = arm_analyze_library_size("libImmEmulatorJ.so");

    // ...
    long mtasaEngineSize = arm_analyze_library_size("libMTASA_Engine.so");

    /*
        [libGTASA.so] size: 0x611874
        [libhmta.so] size: 0x576E4
        [libbass.so] size: 0x37598
        [libSCAnd.so] size: 0xE77371
        [libImmEmulatorJ.so] size: 0x13F3F8
    */

    bool bValidSizes = (
        (gtasaSize == 0x611874) &&
        (hmtaSize == 0x576E4) &&
        (bassSize == 0x37598) &&
        (scAndSize == 0xE77371) &&
        (immEmuSize == 0x13F3F8)
        ) ? true : false;

    return !bValidSizes;
}

// using:
    if(arm_diagnostics_sizes())
    {
        LOG("ARM: unknown libraries size detected!");
        // ...
    }