Hi all
Seeing the obfuscated code of other programs ...
An example:
... ask me, how good was the b4a obfuscation?
Decompile some of the programs that I have done and I am surprised that only the names of the functions and some variables were obfuscated, leaving the rest of the code completely exposed
An example of this is the following example project.
This is the sample source code
Attached obfuscated apk file. you will find it below.
By decompiling the attached file, you can clearly see the following:
The name of the event that requests the keys is clearly legible
The names of the other functions and variables, if they were obfuscated
I want to know if it is possible for someone to help me with the development of an obfuscator.
I do not know if it will be very difficult, but I want to develop an obfuscator that can rename all labels, buttons, listViews, functions, panels, etc.
I would greatly appreciate your help.
I also attach the source of the project, and the result of the decompilation of the apk.
Seeing the obfuscated code of other programs ...
An example:
B4X:
class C0124t {
/* renamed from: a */
final /* synthetic */ C0119p f3067a;
/* renamed from: b */
private final String f3068b;
/* renamed from: c */
private final float f3069c;
/* renamed from: d */
private final float f3070d;
/* renamed from: e */
private final C0120u f3071e;
public C0124t(C0119p c0119p, String str, float f, float f2, C0120u c0120u) {
this.f3067a = c0119p;
this.f3068b = str;
this.f3069c = f;
this.f3070d = f2;
this.f3071e = c0120u;
}
/* renamed from: a */
public void m2469a() {
this.f3067a.f3055W.m704a(0.8f, 0.8f, 0.8f, 1.0f);
this.f3067a.f3055W.m701a(0.9f - (0.15f * MathUtils.m1317b(6.2831855f * ((0.5f * this.f3067a.f3040H) - this.f3070d))));
this.f3067a.m2441a(this.f3068b, this.f3067a.f3055W, this.f3069c);
}
/* renamed from: a */
public boolean m2470a(Vector2 vector2) {
if (vector2.f1634g < 90.0f || vector2.f1634g > 150.0f || vector2.f1635h < this.f3069c - 10.0f || vector2.f1635h >= this.f3069c + 20.0f) {
return false;
}
this.f3067a.f3056a.f2953y.m2388d();
this.f3071e.mo393a();
return true;
}
}... ask me, how good was the b4a obfuscation?
Decompile some of the programs that I have done and I am surprised that only the names of the functions and some variables were obfuscated, leaving the rest of the code completely exposed
An example of this is the following example project.
This is the sample source code
B4X:
#Region Project Attributes
#ApplicationLabel: B4A Example
#VersionCode: 1
#VersionName:
'SupportedOrientations possible values: unspecified, landscape or portrait.
#SupportedOrientations: unspecified
#CanInstallToExternalStorage: False
#End Region
#Region Activity Attributes
#FullScreen: False
#IncludeTitle: True
#End Region
Sub Process_Globals
'These global variables will be declared once when the application starts.
'These variables can be accessed from all modules.
End Sub
Sub Globals
'These global variables will be redeclared each time the activity is created.
'These variables can only be accessed from this module.
Private EditText_eMail As EditText
Private EditText_Password As EditText
Private ButtonGetApiKeys As Button
Private LabelApiKey As Label
Private LabelApiSecret As Label
Dim x_eMail As String
Dim x_PassWord As String
End Sub
Sub Activity_Create(FirstTime As Boolean)
'Do not forget to load the layout file created with the visual designer. For example:
Activity.LoadLayout("Layout1")
End Sub
Sub Activity_Resume
End Sub
Sub Activity_Pause (UserClosed As Boolean)
End Sub
Sub EditText_eMail_TextChanged (Old As String, New As String)
Validate(New)
End Sub
Sub EditText_Password_TextChanged (Old As String, New As String)
Validate(New)
End Sub
Sub ButtonGetApiKeys_Click
LabelApiKey.Text = GetApiKey(EditText_eMail.Text)
LabelApiSecret.Text = GetApiSecret(EditText_eMail.Text)
End Sub
Public Sub GetApiKey(eMail As String) As String
Dim ApiKey As String
ApiKey = "928749823798472398"
Return ApiKey
End Sub
Public Sub GetApiSecret(eMail As String) As String
Dim ApiSecret As String
ApiSecret = "89y54y9t845y98"
Return ApiSecret
End Sub
Public Sub Validate(Value As String) As Boolean
Return True
End SubAttached obfuscated apk file. you will find it below.
By decompiling the attached file, you can clearly see the following:
B4X:
public static String _x_email = "";
public static String _x_password = "";
public ButtonWrapper _buttongetapikeys = null; 'button name is visible
public EditTextWrapper _edittext_email = null; 'editText name is visible
public EditTextWrapper _edittext_password = null; 'editText name is visible
public LabelWrapper _labelapikey = null; 'Label name is visible
public LabelWrapper _labelapisecret = null; 'Label name is visibleThe name of the event that requests the keys is clearly legible
B4X:
public static String _buttongetapikeys_click() throws Exception {
mostCurrent._labelapikey.setText(BA.ObjectToCharSequence(_v5(mostCurrent._edittext_email.getText())));
mostCurrent._labelapisecret.setText(BA.ObjectToCharSequence(_v6(mostCurrent._edittext_email.getText())));
return "";
}
B4X:
public static String _edittext_email_textchanged(String str, String str2) throws Exception {
_v7(str2);
return "";
}
B4X:
public static String _edittext_password_textchanged(String str, String str2) throws Exception {
_v7(str2);
return "";
}The names of the other functions and variables, if they were obfuscated
I want to know if it is possible for someone to help me with the development of an obfuscator.
I do not know if it will be very difficult, but I want to develop an obfuscator that can rename all labels, buttons, listViews, functions, panels, etc.
I would greatly appreciate your help.
I also attach the source of the project, and the result of the decompilation of the apk.
Last edited:
