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List of issues#116 Can't decompile a class / Obfuscated code
Author: 
focus
focusDate created:
Type: bug
Visibility: Everybody
Assigned to:
Labels: AS3Obfuscated
State: closed 
> What steps will reproduce the problem?
- Open attached swf file
- navigate here http://i.imgur.com/4LykSAQ.png
- see decompilation goes for ever
> What is the expected output? What do you see instead?
decompiled code
> What version of the product are you using? On what operating system?
1.6.2
> Please provide any additional information below. Attach the file you have problem with
if neccessary. If you do not want to publish files YOU CAN CHANGE VISIBILITY TO PRIVATE
pandagunshop-c.swf (4,338 KiB)
I have bad news and good news.
Bad news: The first file is highly obfuscated. Current algorithm of deobfuscation in FFDec
cannot handle all classes of this file properly - it just freezes. Maybe I can take a look
on it in the future, but this time it has low priority (other issues first, sorry)
Good news: The second file decompilation will be possible in the next FFDec release (stay
tuned), I made some changes to the code.
Next time, please create separate issue for each SWF, thank you.
State: new→opened
Sure, thanks!
version 1.6.3 released
try it for the second file
State: opened→upgraded
Yeah, works with second file now! Thanks!
okay, I am setting status to Paused. Maybe I come back later and open it to fix the first
file deobfuscation.
State: upgraded→postponed
Yeah, thanks, that would be really awesome.
Here is protector used at pandagunshop for your reference and tests:
http://zero.flashwing.net/FlashShiled/
Title: Can't decompile a class→Can't decompile a class / Obfuscated code
I see current version have no infinite decompilation for 1st file, but decompilation
results are not so nice:
package
{
import flash.display.MovieClip;
public dynamic class do{
-numChildr�en;
}while(mouseEnabled �|� ��framesLoaded) extends MovieClip
{
public function do{
-numChildr�en;
}while(mouseEnabled �|� ��framesLoaded)() {
super();
return;
}
}
}
Hey, looks like this issue is fixed now, 1.7.0 is able to decompile as in both swfs!
Are you sure?
I can see StackOverFlowError in "/pub?lic var? mouseChildre?n;TimelineM?arker.complete"
for pandagunshop-c file.
Oh, you're right, I didn't noticed it last time =\
And looks like P-Code deobfuscation fails too - I see Please wait... for a long time after
executing it. *sigh*
Now FFDec just freezing while trying to decompile main class of any SWF protected with
this obfuscator.
Don't know what newest versions have done but have completely broken functionality.
Everything results in a cannot decompile error now, and the one thing I can edit ends up
producing NaN errors.
Please could you attach your swf?
http://w.gow.huanlecdn.com/37wan/gow_loader.swf?20140910094931
how about this swf
layola: What is the problem in this file? I can see only 2 classes, and do decompilation
errors, but the swf is obfuscated, so the methodnames looks like this: "§ʠ]§", it is
normal.
I tried it with the latest nightly, so if you have other problems with this swf, please
try the latest nightly.
do decompilation errors = NO decompilation errors
vnchats: Please create new issue here:
/www.free-decompiler.com/flash/issues/new/
Each SWF file should have its own issue.
Thank you!
And specify which script is not decompiled corretly.
Also please try the latest nightly.
In nightly 1269, the situation for pandagunshop is way better I think.
It is still uncompilable by standard compiler since it has §§push, §§pop somewhere,
but the decompilation if FFDec should be ok. Try it, if you're still interested :-)
State: postponed→upgraded
Great results! Glad to see you're improving deobfuscation features of the FFDec.
Thank you.
Yes, we did a big improvements since 2013 :-).
State: upgraded→closed