Help to specify mask/charset/command

Help to specify mask/charset/command - Printable Version

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Help to specify mask/charset/command - artur3004 - 04-12-2020

happy easter folks,

I still don't really get the right parameters for my brute-force attack

What I have:
NTLMv2 hash (do i need only the 2nd hashpart or the whole hash like provided?)
Password is 12 to 14 char long (upper/lower/digit/special)
it contains up to 4 special chars

so that's propably

Code:
?a?a?a?a?a?a?a?a?a?a?a?a?a?a

as charset(?)

The following command

Code:
hashcat64.exe -m 1000 -a 3 -o hash.txt ?a?a?a?a?a?a?a?a?a?a?a?a?a?a

is obviously not correct (error token length exception; no hash loaded)

Can someone help me to specify the whole command from incremental 12 chars up to 14?
Thank you very much

RE: Help to specify mask/charset/command - slyexe - 04-12-2020

You're close but highly doubtful you'll be able to do a 14 characters as that will eat a tonne of memory. You can try though!

Code:
hashcat64.exe -m 1000 -a 3 -i --increment-min 12 --increment-max 14 -a 3 hash.txt ?a?a?a?a?a?a?a?a?a?a?a?a?a?a

Note: -o is your OUTPUT file, not your hash file. Also check the hash examples to see how the hash should look for V2 which is -m 5600 actually, not 1000.

https://hashcat.net/wiki/doku.php?id=example_hashes

RE: Help to specify mask/charset/command - artur3004 - 04-12-2020

Quote:
Code:
hashcat64.exe -m 1000 -a 3 -i --increment-min 12 --increment-max 14 -a 3 hash.txt ?a?a?a?a?a?a?a?a?a?a?a?a?a?a

Code:
Integer overflow detected in keyspace of mask: ?a?a?a?a?a?a?a?a?a?a?a?a

is it because it needs so much memory?
i have 32gb ram and the rx 480 has 8 gb (whyever it only can only allocate half of it)
what specs(ram) would i need to perform this brute force?

RE: Help to specify mask/charset/command - undeath - 04-12-2020

No, it's because there are so many possibilities you will never see the attack complete in your lifetime no matter what hardware you have.