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I am using LophtCrack on my Windows 8 OS. I was testing my password strength and the problem I am seeing it is not working. It doesn't reveal my Admin password, I've run the process for half an hour.

I've used Dictionary attack as well as Brute-Force attack, but none of them is working. Can anyone please tell me how can I make it right? Any help will be appreciated.

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migration rejected from reverseengineering.stackexchange.com Jul 19 '13 at 19:18

This question came from our site for researchers and developers who explore the principles of a system through analysis of its structure, function, and operation. Votes, comments, and answers are locked due to the question being closed here, but it may be eligible for editing and reopening on the site where it originated.

closed as unclear what you're asking by Terry Chia, TildalWave, Adnan, Rory Alsop Jul 19 '13 at 19:18

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question.If this question can be reworded to fit the rules in the help center, please edit the question.

    
This question probably belongs on the security se. –  Peter Andersson Jun 19 '13 at 7:39
    
Pehaps.... Can you please migrate my question –  Ðeepak Jun 19 '13 at 7:42
    
@Deepak, this sounds like it might be off-topic, as installing and configuring security tools is usually not a security question. (e.g. How do I open the packaging my degausser came in? is about a security tool but has nothing to do with security.) Please follow the about link below and read about what questions are on-topic, and if needs be expand your question. (Also, if you think your admin password can be cracked in half an hour, then the audit is done and your password failed!) –  Graham Hill Jun 19 '13 at 10:29
    
If it is a Off topic question then where should i ask this question, It has already migrated from Reverse Engineering... Should I go for Super user site –  Đēēpak Shãrmã Jun 19 '13 at 11:32
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I am not sure it is entirely off topic, however I am sure you aren't asking the right question. Firstly - try giving it some weeks rather than half an hour. Secondly - if it can't break it, that might be the result you want... Think about what your problem is... –  Rory Alsop Jun 19 '13 at 16:47

1 Answer 1

Disclaimer: I used l0phtcrack 15 years ago, but I'm not familiar with the current version.

Do you use a weak/short Administrator password? If not, then don't expect it to get a result in half an hour. As you know your password, you can calculate how long it would take to break it. Also, just define the correct character set that you are using for the Administrator account and then let l0phtcrack run through (finish).

Another important point to be aware of: In Windows 8 there is no Administrator. When you setup Windows 8, it asks you to create a user (which gets Admin rights), but it is not "the" Administrator. When you go to the User Accounts dialog, you only see users, the Administrator itself is no longer listed. Actually the real Administrator still exists, but it is not listed there. You can still see the real user list when you go to Computer Management, Local Users and Groups. I assume the real Administrator will get created with a very strong random password (or empty?) and you just don't see it. This very strong password (still my assumption) will not be possible to crack by using l0phtcrack or any similar tool, even if you let it run forever. If I look at the users (in Computer Management), I can see that the users Guest and Administrator are disabled, which kind of proves that there's nothing to calculate for them.

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