I have a 7z file which I password protected(and encrypted) and I can’t remember the darn password. Is there a way to extract this password from this file?
P.S. I love EndeavourOS/KDE, it’s great!
No. Would pretty much make passwords useless, if that was possible.
If it is a weak password, you could probably brute force it. There are many tools that do this. Look up how to use John the Ripper and Hashcat.
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It will be pretty fast if you have at least somewhat vague idea of what it is or parts of it, or if it’s numbers only. Anything above 5 symbols won’t be fast and will need significant resources to brute-force and you’ll need a powerful GPU.
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No. Would pretty much make passwords useless, if that was possible.
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Oh good, some encouraging news! 
Thank you. I forgot to mention that my password has 12 characters. However, I remember the characters, just not the sequence. I’ll try both of your suggestions.
I have a computer with an AMD Radeon RX 5600 XT, so I’ll try it on that one. The password is 12 characters long, but I remember the characters I used, just not the sequence. I’m guessing that if I input those characters, it’ll make the job easier?
Yep, much better.
If you can limit to specific characters it will be faster, although 12 characters still would take a lot of time, prepare not to turn off your PC 
Basically you should extract hash from .7z file and then hashcat that hash until it’s brute-forced…
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Cool, I’ll try that. Thx.
Oh, and btw, if you 100% sure it’s 12 characters - set hashcat to strictly brute-forcing 12 characters length, it will skip unnecessary steps between 1 and 11 which would take a lot of time as well, and will do only what you actually need 
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Keep us updated. I would be interested to see if it worked!
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I assure you eventually it will…
With a balance between powerful GPU(s) and patience of Buddhist monk (since it’s 12 characters).
You can test it yourself easily by creating some 2 characters password in .7z and brute-forcing it, it will be very fast.
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This is actually a great exercise before attempting any serious password cracking.
Make an archive with a simple password (say three lowercase letters), extract its hash with some perl script from github (inspect the script first so you can be sure there’s nothing fishy), and try to brute force it with hashcat. You’ll learn a lot from the exercise.
No no no…we would never do anything like that!
P.S. Special agent assigned to me would certainly not approved that! 
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cyberpunk clown 
animation
@Kresimir right now:
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oh this video is blocked in the US…copyright something. need to hack it. can only watch the older version.
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Actually, I didn´t have to use hashcat or John. I tried a few more times to input the characters I remembered and I got the right one. I then saved it with another pw I know well (15 char.) and one I have written down.
I found hashcat and John quite complicated to use, so this is why I gave it another try. My thanks to all of you who contributed.
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