01-18-2016, 01:03 PM

Hi i'm new with hashcat and i started studying how this program works a few days ago, i've read about the brute force attack and i would like to use it in combination with a rules based attack.

Let's say i've the sha256 hashes of some string that have this pattern: n-_ _ _ _ _ _ _ _ _ _ _ _ (12 alphanumeric values).

I know that this is a very long string to brute force considering that i have 62^12 combination.

I've noticed a very frequent pattern in the creation of this 12 values string and the pattern is this one:

- at least two number

- at least two vocal

- at least four capital letter

Using this three condition the number of combinations possible reduce drastically, how can i implement this condition in hashcat ?

Will the insertion of this condition reduce the hash/s rate ?

Let me know.

Valerio.

Let's say i've the sha256 hashes of some string that have this pattern: n-_ _ _ _ _ _ _ _ _ _ _ _ (12 alphanumeric values).

I know that this is a very long string to brute force considering that i have 62^12 combination.

I've noticed a very frequent pattern in the creation of this 12 values string and the pattern is this one:

- at least two number

- at least two vocal

- at least four capital letter

Using this three condition the number of combinations possible reduce drastically, how can i implement this condition in hashcat ?

Will the insertion of this condition reduce the hash/s rate ?

Let me know.

Valerio.