If you are looking for the decompiler itself, visit https://github.com/jindrapetrik/jpexs-decompiler
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List of issues#1479 Invalid SWF Wrong Signature when try to open SWF
Author: 
Machow8
Machow8Date created:
Type: bug
Visibility: Everybody
Assigned to:
State: closed 
> What steps will reproduce the problem?
Tryed to open the attached SWF and got this error.
> What is the expected output? What do you see instead?
I expected to see the file unpacked as other i worked with. What i saw, insterad, was this
error.
> What version of the product are you using? Is it "nightly build"? Which operating system
do you have?
It's version 11.1.0 nightly 1705, i use Windows 7 64 bits.
> Please provide any additional information below. If the problem is related to a SWF
file, attach it here, otherwise we can't help you.
I attached the file and hope you can find a way to make it work and be seen by jpexs.
Thanks.
platform-racing-2-v151.swf (1,327 KiB)
The file extension is SWF, but this file is not an SWF file. Like when you rename an exe
to swf...
Probably it was encrypted, so for FFDec (and any other SWF decompiler) it is only a random
binary data, not processable.
A valid SWF file should start with FWS, CWS or ZWS characters. Your file starts with 0xB3,
0xC3, 0xBA characters.
State: new→upgraded
State: upgraded→closed