Hashcat does 1-7 numeric characters on brute force attack when specifying 8

Question

I have Hashcat 0.49 on Kali Linux 1.1.0a and I have a .hccap file. It's a WPA2 Network in the file so I chose a mask of 8 numeric characters (?d?d?d?d?d?d?d?d) and instead of starting at 8 numeric characters it does 1-7 first which takes a long time. How can I fix this?

answer found in the hashcat documentation: https://hashcat.net/wiki/doku.php?id=mask_attack — schroeder, Jun 10 '15 at 15:16

score 5 · Accepted Answer · answered Jun 22 '15 at 21:09

I assume you are talking about the Mask Attack and not Brute-force Attack which is outdated and replaced by Mask Attack.

I had to add --pwd-min=8 to the list of parameters to force it to start at 8 digits from the get-go.

Source: http://hashcat.net/forum/thread-1538.html

score 0 · Answer 2 · answered Jun 10 '15 at 13:32

0

Do you have '-i' or increment enabled? This sounds like you do. Disable it if you don't want it to run through all shorter permutations.

answered Jun 10 '15 at 13:32

Andy

31
3

I don't see a -i or --increment option in the help. – kprovost7314 Jun 20 '15 at 23:11
Sorry I use oclhashcst, it works slightly differently, in hashcat 0.5 they brought in a feature for changing increments as it was on by default in 0.49 and earlier. I suggest that kprovost7314 should update to version 0.5 and then increment of off by default. – Andy Jun 24 '15 at 08:15
Please see https://hashcat.net/trac/ticket/572 – Andy Jun 24 '15 at 08:16

Hashcat does 1-7 numeric characters on brute force attack when specifying 8

2 Answers2