When the executable file is run, it always extracts the files from the protected zip except for one thing. As demonstrated in other tutorials, the encrypted zip file is converted to exe using this method. NSIS contains a zip to exe builder tool, so you can create a self-extracting zip file using this technique. Answered by Philipp on StackExchangeĮxactly! NSIS is not a password cracker as Philipp points out, but instead, it is used to build installers. Why should it? It’s a sofware for building installers, not a cracking tool. So here is the truth, NSIS cannot be used to unlock encrypted zip files.īut Nullsoft Installation System (NSIS) does not actually seem to contain a cracker for weak ZIP archives. But whether the claims are true or not is totally a different thing. There are several tutorials online, claiming to unlock zip passwords instantly using a tool called Nullsoft Scriptable Install System aka NSIS. Using NSIS to instantly unlock encrypted zip files, really? However, if it fails, then feel free to try again with different options or try one of the other methods listed below.

Copy the password and paste it into the zip file. Upon successful completion, a pop-up window appears with the password. This time, it may take a while to complete. If the dictionary attack fails, then try the Brute-Force attack. The brute-Force attack tries all possible character combinations while subjected to the character set, string length and other constraints we set. Tick all the possible options from the below set of options and finally click start. Select Dictionary Search under Search Method. Launch UZC and click on browse, then choose the zip file and click open to add the password-protected zip to the software.ĭictionary attack can be used when you are sure that the password is an English word. Once downloaded, install it your computer. You can obtain a fully functional trial copy but there is a limit on the password length it can extract. Go to Ultimate Zip Cracker software website to download the software. Download & install Ultimate Zip Cracker (UZC).

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