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nyxgeek

@nyxgeek

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rebel scum, nerfherder, dogged and relentless

hacking gibsons
Joined June 2012
Don't wanna be here? Send us removal request.
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@nyxgeek
nyxgeek
1 year
If anyone wants to check out my DEF CON talk about massive user enumeration, presence monitoring, and guest relationships in Azure, they posted the video a few days back. Track the Planet!
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@nyxgeek
nyxgeek
6 months
It blows my mind that somebody at Apple, nay, an entire TEAM at Apple thought this was a good idea.
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@nyxgeek
nyxgeek
4 months
I've ported Microsoft's Recall over to Linux. Just add this to your crontab. * * * * * gnome-screenshot -f ~/screenshots/screenshot_$(date +\%Y\%m\%d\%H\%M\%S).png You're welcome.
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@nyxgeek
nyxgeek
6 years
The best advice I can give to aspiring pentesters is: learn to be a sysadmin. Those scripting skills will set you apart. Those troubleshooting skills will set you apart. That familiarity with underlying tech will set you apart. Build yourself a strong base for ur 1337 sk1llz.
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@nyxgeek
nyxgeek
7 years
I made a Google map of a bunch of different hacking cons, b-sides, 2600 and DC meetups. If I missed any DM me.
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@nyxgeek
nyxgeek
1 year
This just blows my mind. I’ve seen unsourced pictures of these but have never actually known somebody who has them. For anybody who doesn’t recognize them, this is the series of Rainbow books from the DoD referenced in Hackers.
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@nyxgeek
nyxgeek
7 months
I’ve got to do some maths, but I think I’m going to cancel all my streaming (or most) and go back to DVDs and rip them to my NAS or a pi solution. 90% of what I watch is not new content. Or if it is, it’s via YouTube. Anybody else make the jump back to on-premises media?
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@nyxgeek
nyxgeek
3 years
Major rewrite of o365recon. Better. Faster. Stronger. Easier to use, faster to run, and with additional features and bug fixes. More Azure information (apps and device ownership). Everything is saved in simple textfiles so it's easy to grep.
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@nyxgeek
nyxgeek
2 months
This should be the default Windows experience
@Pirat_Nation
Pirat_Nation 🔴
2 months
Here is Windows Government edition. Version of Windows maximally debloated by Microsoft, with all telemetry and microsoft apps removed and without restrictions for hardware present in Retail version
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@nyxgeek
nyxgeek
10 months
“Computer security is one of the biggest problems in the computer industry.” From NCSC-WA-002-85 This was from 1985. We still haven’t “fixed” computer security in nearly 40 years.
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@nyxgeek
nyxgeek
10 months
Happy Birthday to Phrack! The first issue of Phrack was released on November 17, 1985.
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@nyxgeek
nyxgeek
7 years
o365recon - (PowerShell) - use a single discovered cred to dump full o365 user list, group list, & group membership
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@nyxgeek
nyxgeek
1 year
New blog is out! OneDrive to Enum Them All Major updates: • database storage • logging of previous runs • easily append digits or strings to usernames • stale job detection • skip tried usernames Special thanks to @DrAzureAD and @thetechr0mancer !
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@nyxgeek
nyxgeek
11 months
Does anybody have an actual original copy of DoD 5200.28 STD — Trusted Computer System Evaluation Criteria?
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@nyxgeek
nyxgeek
1 year
Thanks to all who made it to my #defcon31 talk: Track the Planet! I'm excited to share this research with everyone. The slide deck is now available on GitHub and can be found here:
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@nyxgeek
nyxgeek
8 months
How would ransomware work if there was no cryptocurrency?
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@nyxgeek
nyxgeek
5 years
I wrote a little python script to scan for NTLM auth directories useful against OWA/Skype/autodiscover servers
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@nyxgeek
nyxgeek
5 years
If you need some ideas for weak passwords to try in brute-force attempts, I've written a script to generate candidates based off the current date, with a 90 day window. A cronjob updates the page daily.
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@nyxgeek
nyxgeek
1 year
Finally posted TeamsTracker code from my DC31 talk. It proxies through Microsoft Graph Explorer to make unauthenticated Teams Presence/OOO lookups and logs them to a local db. Requires UUID of Azure account. Takes a CSV export from TeamFiltration, or a
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@nyxgeek
nyxgeek
1 year
Today marks 7 years that I’ve been at @TrustedSec . I’m really lucky to have found such a great group of people who love hacking stuff as much as I do. Such a terrific company to work for, and have met so many amazing people over the years working here.
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@nyxgeek
nyxgeek
3 months
It blows my mind a company making over $200 BILLION and that is foundational to our economy gets many security fixes from user submissions. CRITICAL issues regularly found, and they would have remained ignorant to, were it not for some kind nerd. And people are just like, “ok”.
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@nyxgeek
nyxgeek
1 year
Happy Labor Day! Going to celebrate with a tool release: guestlist from my #defcon31 talk is out! Featuring fireprox rotation (thnx @ustayready ) and sqlite db Default is to use @DrAzureAD silent enum method. Graph method also supported. Updates to come
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@nyxgeek
nyxgeek
2 years
Happy birthday to Phrack! The first issue of this ezine was released Nov 17, 1985. Get a glimpse into hacker culture of the 90s in one of my favorite "Phrack Loopback" editions from 1997, where the Phrack Staff respond to emails from the peanut gallery :)
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@nyxgeek
nyxgeek
8 years
I love LinkedIn! Knowing specific job duties, technologies used, and project names really helps my spear-phishing game!
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@nyxgeek
nyxgeek
1 year
Gandalf the Grey performing the first recorded password attack. Circa Third Age 3019, West Gate of Moria.
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@nyxgeek
nyxgeek
1 year
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@nyxgeek
nyxgeek
1 year
Always practice safe SECS
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@nyxgeek
nyxgeek
1 year
My first deep dive on OneDrive Enum. This walks through how to create a gang of bots to scrape for you. Part 1: OneDrive Enum Basics, Infrastructure Setup Coming soon Part 2: Username Lists, Org Lists, Automated Scraping Part 3: Data Analysis
@nyxgeek
nyxgeek
1 year
My #defcon talk had three parts: 1. Enumerating 24 million users via OneDrive 2. Monitoring 100,000 Microsoft employees via Teams presence 3. Mapping out 30,000 guest relationships between companies with user enum Which would you like to see a deep dive on first?
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@nyxgeek
nyxgeek
5 months
Are we sure this whole “Internet” thing was a good idea?
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@nyxgeek
nyxgeek
1 year
Incredibly excited to be speaking at @defcon this year! My talk is titled: Track the Planet! Mapping Identities, Monitoring Presence, and Decoding Business Alliances in the Azure Ecosystem #defcon31
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@nyxgeek
nyxgeek
1 year
Password cracking got you down? Try out hate_crack -- with a fresh new crack option from @Bandrel that is perfect for targeting organization-specific passwords. Really awesome work by @Spoonman1091 and @Bandrel !
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@nyxgeek
nyxgeek
9 months
length doesn't matter. (if your password is a phrase that appears as a Wikipedia title) just cracked a 38 char password.
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@nyxgeek
nyxgeek
1 year
I just love AAD Internals () from @DrAzureAD Great tools, but also a fantastic resource for digging into how those tools work. It's obvious that a lot of time and effort has been put into this collection.
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@nyxgeek
nyxgeek
5 years
I love o365. Great attack surface with user-enum, and it’s everywhere. Plus, once you get creds you can start querying for more info. Truly, a gift from Microsoft!
@TrustedSec
TrustedSec
5 years
Senior Security Consultant @nyxgeek helps you hone your brute-force attacks against O365, and shows you how to extract valuable user lists and group memberships once you have credentials
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@nyxgeek
nyxgeek
3 years
I wrote a blog post showing how to create a malicious Azure AD OAuth app that steals user lists and emails. Check it out.
@TrustedSec
TrustedSec
3 years
What would it look like for an attacker to use a malicious #OAuth web app to attack Azure AD users? “Creating a Malicious Azure AD OAuth2 Application” breaks down how deploying a malicious web app isn’t overly complex and can be used in an attack #blog
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@nyxgeek
nyxgeek
3 years
Today is my cakeday at @TrustedSec - 5 years! Longest I've ever worked somewhere. Might have something to do with all the amazing coworkers I have. :D
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@nyxgeek
nyxgeek
5 years
Here’s another way to perform user enumeration of o365 users by checking to see if a user’s OneDrive url exists. The upside is this doesn’t make a login attempt. The downside is that it only works for users who have accessed OneDrive.
@TrustedSec
TrustedSec
5 years
In our latest #blog post, Senior Security Consultant @nyxgeek takes us through a simple, passive method of performing user #enumeration via @onedrive
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@nyxgeek
nyxgeek
1 year
Why user enumeration is important -- We can think of a login attempt like this: username + password = [successful login] -At a large organization, we can be pretty sure that at least one account will have a weak or common password (Spring2023, Ilovemyjob2023!, etc). -This
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@nyxgeek
nyxgeek
4 months
@AdamPeterCSD 🤣 these serious replies are teh best. good job.
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@nyxgeek
nyxgeek
2 years
Teams RCE is why everyone should disable the default, open, configuration of Microsoft Teams where anybody is allowed to message people at your organization. You can still allow-list specific domains if you need b2b chat.
@momika233
张惠倩
2 years
2022 Microsoft Teams RCE #Microsoft #RCE
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@nyxgeek
nyxgeek
7 years
OPSEC RULE # 1
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@nyxgeek
nyxgeek
6 months
Any guesses for the most popular username in Entra ID?
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@nyxgeek
nyxgeek
11 months
Enumerating 24 Million Users: Part 2 A continuation of my deep dive on my #defcon31 talk. This part covers: • creating user lists, survey lists, username formats • creating lists of orgs, their domains and tenants • running scraping operations
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@nyxgeek
nyxgeek
2 years
If you're looking for silent (no-auth) O365 user enumeration, I can highly recommend @Flangvik 's TeamFiltration. In my non-scientific benchmarks, it gets nearly the same results as login-based enum, and gets ~5% more hits than OneDrive enum.
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@nyxgeek
nyxgeek
4 years
It’s official, I passed my OSCE! Very challenging exam, but it’s some good wizardry learned. Looking forward to the new revision that OffSec is rolling out next.
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@nyxgeek
nyxgeek
10 months
The Ultimate Oldschool PC Font Pack This is awesome!
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@nyxgeek
nyxgeek
2 months
In this latest edition of "Hiding in Plain Sight," I experiment with hiding data in folder structures. Its real-world usefulness may be limited, but I hope you find it interesting!
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@nyxgeek
nyxgeek
1 year
Azure folks: Reminder to clean up any guest users you don’t want people to know about. Guest users are enumerable just like normal users in Azure. guestlist tool from my DC31 talk is being released next week.
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@nyxgeek
nyxgeek
2 years
Any cloud folks with an interest in hacking looking to make the jump from Cloud DevOps/SysAdmin -> Cloud Penetration Testing ? We are looking for people with skills in AWS and GCP to join the Cloud Pentesting Team at @TrustedSec Please DM me if interested.
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@nyxgeek
nyxgeek
7 months
China caught trying to steal US military defense secrets again. This time it's about our missile detection and tracking capabilities. Another recent attempt from Oct 2023 had to do with the workings of radar systems in Okinawa. See a trend here? An engineer who became a US
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@nyxgeek
nyxgeek
8 months
Here's a short video of a tool I created for visualizing 30,000 guest relationships in Azure, from my DEFCON talk I wish I had been able to show more. The screenshots that made it into the talk were just highlights, but exploring the data interactively
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@nyxgeek
nyxgeek
2 years
Gotta give some love to @flangvik 's TeamFiltration again! I'm a bit obsessed with user enumeration. Enumerating via Teams is silent & has fantastic coverage. Recent gig, OneDrive enum only netted 15 accounts, while TeamFiltration was able to rack up
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@nyxgeek
nyxgeek
8 years
I've uploaded the slide deck for my DerbyCon talk to github: Hacking Skype for Business: The Weakest Lync
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@nyxgeek
nyxgeek
1 year
Well, that was short-lived. If you just get a "doh" error when you run the tool, that's because the request now gives a 403. This might be the fastest fix that I've seen from Microsoft. I did not expect them to fix it, because it would break the Graph Explorer demo.
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@nyxgeek
nyxgeek
1 year
Finally posted TeamsTracker code from my DC31 talk. It proxies through Microsoft Graph Explorer to make unauthenticated Teams Presence/OOO lookups and logs them to a local db. Requires UUID of Azure account. Takes a CSV export from TeamFiltration, or a
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@nyxgeek
nyxgeek
7 years
If you fall for a phish, don’t lie about it. Everybody makes mistakes. Own it, report it. If you mark message unread, claim you didn’t do it, but we have a cleartext pass harvested from our phish that matches your hash in AD... you’re gonna have a bad day.
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@nyxgeek
nyxgeek
1 year
New updates to OneDrive enum, release 2.10! - truncate option (johnsmith -> johnsmi) - remote mysql db logging (scraping bots!) - remote pause option (to pause all your bots)
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@nyxgeek
nyxgeek
6 months
Let's bring back RFC2549! DID YOU KNOW? - Pigeons are not susceptible to LLMNR,NBT-NS,MDNS or mitm6 attacks. DID YOU KNOW? - Pigeons use less fossil fuels than an email? DID YOU KNOW? - Pigeons are apocalypse-resistant. No need for a battery! DID YOU KNOW? - In some
@Bandrel
bandrel
6 months
Whos ready for the @vxunderground Trivia night?! TONIGHT 9EDT on twitch. Come see myself and @nyxgeek , @Cthulhu_Answers , and @mrjhnsn flail around and try to answer questions.
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@nyxgeek
nyxgeek
1 year
It's fascinating to look through the ANT Catalog at all the various NSA implants, backdoors, and hardware devices. And to think, this is a DECADE OLD+. Imagine all the crazy stuff out there now.
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@nyxgeek
nyxgeek
5 months
How many IT and security people transform into luddites by the end of their career?
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nyxgeek
6 months
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nyxgeek
6 months
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@nyxgeek
nyxgeek
1 year
Just picked up a new O'Reilly book. Anybody read this one?
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@nyxgeek
nyxgeek
6 years
Why’s everyone so surprised? PGP stands for “PRETTY GOOD Privacy”, not “OMGZ AMAZEBALLS Privacy”. #efail amirite? (j/k - it’s a client bug, not PGP issue)
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@nyxgeek
nyxgeek
1 year
Your move ⁦ @HackingLZ ⁩ The rest of the crew might be harder to collect.
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@nyxgeek
nyxgeek
4 months
I noticed Microsoft had a big meeting today, based on their collective Teams status. A quick search reveals the likely culprit -- they're having their Microsoft Build event. Started today, May 21.
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@nyxgeek
nyxgeek
2 years
I had my first real hack on a Novell 3.12 system. If you’re into retro computing, or if you used Novell systems back in the day, take a stroll down memory lane with a history and overview of Novell Netware.
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@nyxgeek
nyxgeek
1 year
Spending a beautiful day out war driving with my partner in crime (slash active car defense unit). Windows are down and she’s loving it.
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@nyxgeek
nyxgeek
7 years
Surfing the Internets with your user-agent set to "<script>alert(1)</script>" can have interesting results.
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@nyxgeek
nyxgeek
2 years
Hey hackers, did you know that the term “handle” goes back to CB days? Pay homage to the origins of handles and watch Smokey and the Bandit. ;)
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@nyxgeek
nyxgeek
5 months
Just me and the crew living our best life.
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@nyxgeek
nyxgeek
2 years
PENTESTERS LISTEN UP! Enjoy the easy days of MFA spamming while you can, they come to an end Feb 27, 2023. At least there's still unregistered MFA to take advantage of.
@merill
Merill Fernando
2 years
PSA The Microsoft Authenticator app will start enforcing number match on all tenants from Feb 27, 2023 We have some handy change comms templates for you at to inform your users of the change. 👇🏾
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@nyxgeek
nyxgeek
1 year
A little late, but a couple months back had a cool PR for ntlmscan from @fang0654 , who identified that misconfigured IIS installs would sometimes respond to NTLM auth, but not initiate auth itself. Thanks for the neat PR!
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@nyxgeek
nyxgeek
1 year
If you've ever had a python script freeze and you had no idea why -- I just learned you can easily attach GDB to the process and see what's up.
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@nyxgeek
nyxgeek
4 years
Wikipedia has a ton of potential passphrase candidates — song titles, team names, slang, pop culture references, etc. So I made a wordlist from the article titles. Have had outstanding results when combined with heavy rules. Check it out.
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@nyxgeek
nyxgeek
7 years
The best thing about going to security cons and meeting your digital heroes is realizing that they are just ordinary people like you or me.
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@nyxgeek
nyxgeek
1 year
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@nyxgeek
nyxgeek
7 months
Last day in Oslo. Did some shopping and found a piece to add to my phone collection. Anybody know who made this beauty?
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@nyxgeek
nyxgeek
8 months
Spend time with your grandparents. They know cool shit and have good stories if you listen. You can't ask anything after they're dead.
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@nyxgeek
nyxgeek
8 years
Announcement for DEF CON I from 1993. @defcon @thedarktangent
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@nyxgeek
nyxgeek
1 year
There’s still something magical about getting a new @2600 in the mail.
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@nyxgeek
nyxgeek
7 years
The #skype4b attack path outlined in my @TrustedSec blog post has a VERY high success rate, esp at larger orgs
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@nyxgeek
nyxgeek
1 year
Sorry to any security folks called in tonight on my account. It’s all for the greater good!
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@nyxgeek
nyxgeek
1 year
Got some much needed time AFK this last week. It’s okay to love your job, and obsess with projects. Just make sure you’re stepping back and enjoying the real world too.
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@nyxgeek
nyxgeek
5 months
User enumeration in Microsoft products is a problem because EVERYBODY* uses Microsoft products. Our government and economy — and most of the Western world — are tied up in Microsoft.
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@nyxgeek
nyxgeek
1 year
The OffSec courses like the OSCP/OSCE are tough. They both require foundational knowledge — programming, networking, server admin. If you are weak in one of those areas you might have a hard time. Make sure you have solid foundations. If you’ve never run a web server, set one
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@nyxgeek
nyxgeek
1 year
Mental health tip: reading comments on social media is a quick way to lose all faith in humanity. I realized a while back that I was spending a lot of time taking in threads, comments on Reddit. While it’s fun to dive in and read arguments, it’s draining. Do yourself a favor —
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@nyxgeek
nyxgeek
7 months
@techspence Scripting, infrastructure admin, networking. These are 3 very necessary skill areas that can be overlooked if people rush straight into cybersecurity. My advice for people is to be an admin for a few years, then go into hacking.
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@nyxgeek
nyxgeek
2 years
Excited to be speaking at @thotcon this year! I'll be presenting on a year+ long project involving massive user enumeration, and the trials & tribulations accompanying the effort. Additionally, we'll look at username formats, corporate & govt domains, Azure tenants, and more!
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@nyxgeek
nyxgeek
5 years
WOW! Sometime in the last week @msftsecresponse fixed the user enumeration bug in o365 that we have been exploiting for the last couple years with office365userenum. Does this mean Microsoft does indeed consider User Enum to be a vuln now?
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@nyxgeek
nyxgeek
1 year
A brief overview of the built-in rules in @hashcat , as well as some recommendations for usage, tips, and select origin stories. If you missed the recent @RedSiege Wednesday Offensive, this covers some of the password cracking material that I spoke about.
@TrustedSec
TrustedSec
1 year
Want to enhance your password cracking skills? Check out our latest blog from @nyxgeek on understanding built-in hashcat rules and how to use them to crack passwords efficiently!
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@nyxgeek
nyxgeek
1 year
If you're at @thotcon come check out my talk, "Scraping Corporate America and the World: An Adventure in User Enumeration" Saturday at 1pm in Track 2. Hope to see you there!
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@nyxgeek
nyxgeek
4 years
Write code for yourself first. If it works for your task, share it. If other people use it, all the better. It's important to have side projects. Even if you never plan on sharing them. They will make you a better coder, and increase your understanding of the magic of computers.
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@nyxgeek
nyxgeek
10 months
Just found out about the ANSI editor PabloDraw. I'm a total n00b with ANSI art currently, but it's fun. Might have to use this to design tool art going forward.
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@nyxgeek
nyxgeek
1 year
This is an amazing DEF CON 31 talk - Weaponizing Plain Text ANSI Escape Sequences as a Forensic Nightmare Not only is it hella cool research, @stokfredrik is entertaining AF and a great presenter.
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@nyxgeek
nyxgeek
5 months
Going through the closet today and found a few items I had stashed away.
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