What is the best software to brute force a 7zip file?

[AManWithPlan]

Dear LTT forum,

 

I know the password is 8 case sensitive alphanumeric characters; so 0-9 a-z and A-Z. This is about 48 bits of entropy.

 

What is the best software (most guesses per second based on my beefy computer hardware) that I can run to break this password? I would appreciate it if the software also tries all common passwords and their combinations (that fit 8 characters), pretty much a dictionary attack, prior to actually trying all possible combinations.

 

This should be exceptionally easy as I do not have to try any 1-7 length password combinations at all.

 

Amanwithplan

[givingtnt]

4 minutes ago, AManWithPlan said:

Dear LTT forum,

 

I know the password is 8 case sensitive alphanumeric characters; so 0-9 a-z and A-Z. This is about 48 bits of entropy.

 

What is the best software (most guesses per second based on my beefy computer hardware) that I can run to break this password? I would appreciate it if the software also tries all common passwords and their combinations (that fit 8 characters), pretty much a dictionary attack, prior to actually trying all possible combinations.

 

This should be exceptionally easy as I do not have to try any 1-7 length password combinations at all.

 

Amanwithplan

HAHAHAHHAHAHAHAHAHHAAHHAAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA

im sorry.. 

HAHAHAHHAHAHAHAHHAHAAHAHAHAHAHAHHAHAHAHAHAHAHAHAHAHAHAHAAHAHAHAHAHAHAHHAHAHAHAHAHAHAHAHAHAHAHAAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHHAHAHAHAHAHAHAHAHHAHA

what are you an undercover agent of the FBI trying to get acess to an iphone or something ?

[SImoHayha]

Why is that?  What do you mean and why should we help you crack into a file we don't know the owner of?

[AManWithPlan]

Just now, Ramamataz said:

Why is that?  What do you mean and why should we help you crack into a file we don't know the owner of?

It's a cryptography bet. Why does it even matter who owns what? A friend gave me a random 7zip file and challenged me to break into it.

[LiamApex]

for all we know, we could be helping you access someones passwords. 

[sissj]

4 minutes ago, AManWithPlan said:

Dear LTT forum,

 

I know the password is 8 case sensitive alphanumeric characters; so 0-9 a-z and A-Z. This is about 48 bits of entropy.

 

What is the best software (most guesses per second based on my beefy computer hardware) that I can run to break this password? I would appreciate it if the software also tries all common passwords and their combinations (that fit 8 characters), pretty much a dictionary attack, prior to actually trying all possible combinations.

 

This should be exceptionally easy as I do not have to try any 1-7 length password combinations at all.

 

Amanwithplan

https://sourceforge.net/projects/sevenzcracker/

 

You're welcome

*puts sunglasses on* Haters gonna hate.

[LiamApex]

Just now, LiamApex said:

for all we know, we could be helping you access someones passwords. 

and your name doesn't help the matter either really...

[SImoHayha]

Just now, AManWithPlan said:

It's a cryptography bet. Why does it even matter who owns what? A friend gave me a random 7zip file and challenged me to break into it.

Cause we don't condone any type of criminal manner. But since you said it was a cryptography bet. I still don't know.

 

Most brute force attackers use their own programs to crack stuff like this.

[AManWithPlan]

Just now, LiamApex said:

for all we know, we could be helping you access someones passwords. 

Ok, and there's an anarchist cookbook that helps you make ricin and napalm. This is what anon is all about.

 

Either way, this is a cryptography challenge, nothing more.

[givingtnt]

1 minute ago, AManWithPlan said:

It's a cryptography bet. Why does it even matter who owns what? A friend gave me a random 7zip file and challenged me to break into it.

then the bet is about you finiding a way in

not me giving you a way in to then have you get the reward

I want 60% share of said reward

[AManWithPlan]

Just now, Ramamataz said:

Cause we don't condone any type of criminal manner. But since you said it was a cryptography bet. I still don't know.

 

Most brute force attackers use their own programs to crack stuff like this.

So pretty much there is just the crappy ones I've googled that make 1,000 guesses per second (which is trash)?

[Bajantechnician]

7 minutes ago, AManWithPlan said:

Dear LTT forum,

 

I know the password is 8 case sensitive alphanumeric characters; so 0-9 a-z and A-Z. This is about 48 bits of entropy.

 

What is the best software (most guesses per second based on my beefy computer hardware) that I can run to break this password? I would appreciate it if the software also tries all common passwords and their combinations (that fit 8 characters), pretty much a dictionary attack, prior to actually trying all possible combinations.

 

This should be exceptionally easy as I do not have to try any 1-7 length password combinations at all.

 

Amanwithplan

heh

 

1 minute ago, AManWithPlan said:

Ok, and there's an anarchist cookbook that helps you make ricin and napalm. This is what anon is all about.

 

Either way, this is a cryptography challenge, nothing more.

lets ask @colonel_mortis @tobben

[SImoHayha]

1 minute ago, AManWithPlan said:

Ok, and there's an anarchist cookbook that helps you make ricin and napalm. This is what anon is all about.

 

Either way, this is a cryptography challenge, nothing more.

Anarchist cookbook is so outdated lol. And half of the stuff doesn't even work example the napalm thing but that isn't even close to napalm

[AManWithPlan]

2 minutes ago, sissj said:

https://sourceforge.net/projects/sevenzcracker/

 

You're welcome

*puts sunglasses on* Haters gonna hate.

I actually did try this one, it is extraordinarily slow. I would never break the password with it. I honestly thought 48 bits was cake, but it looks like I am wrong.

[cynexit]

So even if this is not a cryptography challenge in any way, if you used a short/bad password, it's your fault.

 

Extract the hash (there are tools to do this) and then use Hashcat or oclHashcat depending if you have a strong CPU or GPU, done. Supports dict and bf.

[sissj]

Just now, AManWithPlan said:

I actually did try this one, it is extraordinarily slow. I would never break the password with it. I honestly thought 48 bits was cake, but it looks like I am wrong.

Ok, at least I tied

[AManWithPlan]

2 minutes ago, givingtnt said:

then the bet is about you finiding a way in

not me giving you a way in to then have you get the reward

I want 60% share of said reward

Haha, I am allowed to use any resources I can find to win this bet. But it's not a financial bet.

[TidaLWaveZ]

1 minute ago, AManWithPlan said:

Haha, I am allowed to use any resources I can find to win this bet. But it's not a financial bet.

 

Be smart, upload the file somewhere so the entire internet can try and it will be done in no time.

[AManWithPlan]

4 minutes ago, TidaLWaveZ said:

 

Be smart, upload the file somewhere so the entire internet can try and it will be done in no time.

I like it, here you go internet. Win my bet for me.

 

Dropbox File

[KemoKa]

1 minute ago, AManWithPlan said:

I like it, here you go internet. Win my bet for me.

 

Dropbox File

Pretty sure he didn't mean here.

Thanks for the virus, though.

[AManWithPlan]

Just now, KemoKa said:

Pretty sure he didn't mean here.

Thanks for the virus, though.

I have no idea what it is, I'm pretty sure it's not a virus.

[SImoHayha]

EVERYONe CRACK IT LIEK AN EGG.

 

I bet it's a dickbutt picture

[KemoKa]

1 minute ago, AManWithPlan said:

I have no idea what it is, I'm pretty sure it's not a virus.

Which is another reason not to try cracking it.

I'll maybe try it when I acquire my army of Lenovo T400s.

[iamdarkyoshi]

Wonder how long a 390x and/or 3930k would take to pop the encryption

[Curufinwe_wins]

so a quick google search got me this...

 

http://security.stackexchange.com/questions/51900/forgot-password-to-7-zip-archive

 

you can follow the links and check out the programs mentioned there.