7MS #478: Password Cracking in the Cloud - Part 4

7MS #478: Password Cracking in the Cloud - Part 4

Hey friends, today we're continuing our discussion of password cracking by sharing some methodology that has helped us get a high cred yield, and some tips on taking cracked passwords from multiple sources and Frankensteining them into a beautiful report for your customer.

For some background, when 7MS started as a biz, we used to crack passwords in Paperspace but invested in an on-prem cracking rig a few years ago. That rig has been flipping sweet, but had some heating issues which prompted me to send the system in for warranty and use an awesome cracking rig in AWS in the meantime.

Whether you're cracking locally or in the cloud, here's a quick methodology that has cracked many a hash for us:

  • Do a straight-up hashcat crack against the PwnedPasswords list (at time of this writing I don't have a good source for the cracked versions of these passwords. I used to grab them at hashes.org. Anybody got an alternative?

  • Do a straight-up hashcat crack through the RockYou2021 list

  • Run the hatecrack methodology, including the quick crack, the quick crack with rules (I'm partial to OneRuleToRuleThemAll), and brute-forcing all 1-8 character passwords

Once I'm ready to wrap up all the cracked passwords and put them in a nice shiny report for the customer, I do the following (using hashcombiner and pipal):

# Run hash_combiner on hashcat’s pot file and write results to a file python /opt/hc/hash_combiner.py user_hash /opt/hashcat/hashcat.potfile > /tmp/round1.txt # Run hash_combiner on hatecrack’s pot file and write results to a file python /opt/hc/hash_combiner.py user_hash /opt/hatecrack/hashcat.pot > /tmp/round2.txt # Cat the two files together into a third file cat /tmp/round1.txt /tmp/round2.txt > /tmp/round3.txt # Sort and de-dupe the third file cat /tmp/round3.txt | sort -uf > /tmp/nice-and-clean.txt # Take just the passwords out of the “nice and clean” output cut -d ':' -f 2 /tmp/nice-and-clean.txt > /tmp/pipal-temp.txt # Score the passwords using pipal /opt/pipal/pipal.rb /tmp/pipal-temp.txt > /tmp/pip-final.txt

Now you've got a nice-and-clean.txt list of users and their cracked passwords, as well as the pip-final.txt with deeper analysis of cracked passwords, their commonalities, etc.

Episoder(684)

7MS #139: Securing Your Life - Part 2

7MS #139: Securing Your Life - Part 2

Back in episode #93 I talked about securing your life - in other words, asking yourself "What would happen if I was dead right now? Do I have adequate insurance? Are my finances in order? How about estate planning?" This episode continues that train of thought, and I share some new changes I've made in my "life security" department.

8 Jan 20168min

7MS #138: OFF-TOPIC - The Hateful Eight

7MS #138: OFF-TOPIC - The Hateful Eight

Looks like I'm one of the few people in the world who did NOT love this movie. I found it painful slow and claustrophobic. #diappointed.

7 Jan 20168min

7MS #137: OFFTOPIC-Welcome to Leith

7MS #137: OFFTOPIC-Welcome to Leith

This off-topic episode talks about one of the most gripping and disturbing documentaries I've ever seen. Welcome to Leith, in a nutshell, asks the question: What would you do if a white supremacist group moved in next door?

6 Jan 20168min

7MS #136: Python for Newbs

7MS #136: Python for Newbs

One skill that's been kind of a hinderance in my IT/security career is I have exactly zero experience in programming/coding. Zero. Zip. Nil. Nada. Nothing.. But I'm trying to remedy that in 2016 by learnin' me some Python, and I picked up a great book called Python Crash Course, which has been exactly what this newb needed. At the time of publishing, you can get 30% off with the coupon code CRASHCOURSE!

5 Jan 20169min

7MS #135: I Got a New Job - Part 4

7MS #135: I Got a New Job - Part 4

This is a four-part series about my transition to a new job! The topics are as follows: * Part 1: When it may be time to look for a new job (or not) * Part 2: How to stand out during phone screenings and interviews * Part 3: How to gracefully transition from old job to new job * Part 4: Here's what I'm doing in my new gig!

4 Jan 20168min

7MS #134: I Got a New Job - Part 3

7MS #134: I Got a New Job - Part 3

This is a four-part series about my transition to a new job! The topics are as follows: Part 1: When it may be time to look for a new job (or not) Part 2: How to stand out during phone screenings and interviews Part 3: How to gracefully transition from old job to new job Part 4: Here's what I'm doing in my new gig!

1 Jan 20169min

7MS #133: I Got a New Job - Part 2

7MS #133: I Got a New Job - Part 2

This is a four-part series about my transition to a new job! The topics are as follows: Part 1: When it may be time to look for a new job (or not) Part 2: How to stand out during phone screenings and interviews Part 3: How to gracefully transition from old job to new job Part 4: Here's what I'm doing in my new gig!

1 Jan 20168min

7MS #132: I Got a New Job - Part 1

7MS #132: I Got a New Job - Part 1

This is a four-part series about my transition to a new job! The topics are as follows: Part 1: When it may be time to look for a new job (or not) Part 2: How to stand out during phone screenings and interviews Part 3: How to gracefully transition from old job to new job Part 4: Here's what I'm doing in my new gig!

1 Jan 20167min

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