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I recently landed on a client’s network with an implementation of Microsoft LAPS on a few thousand hosts. This blog post will walk through how to identify the users sysadmins delegated to view LAPS passwords, and how to identify the users sysadmins have no idea can view LAPS passwords.
Here’s a fun Jenkins trick I have been using on some recent Information Security Assessments to gain an initial foothold. If you aren’t familiar with hacking Jenkins servers, it runs by default on port 8080 and also by default it has no password (Hurray!). According to their Wiki: “Jenkins is an award-winning application that monitors executions of repeated jobs, such as building a software project or jobs run by cron.” Here is what Jenkins looks like.Read More
Ok so I know it isn’t exactly breaking news that DerbyCon 3.0 was awesome. Still I wanted to take a moment to reach out to any of our readers living under a rock and let them know that last September, the PentestGeek.com crew had an opportunity to represent at one of the coolest Information Security events of the year, the DerbyCon!
Sometimes during an Information Security Assessment I find myself spending a fair amount of effort locating a server or workstation with a specific user logged into it. This could be because I am searching for a box with a Domain Admin, or maybe my engagement’s scope has a CTF style scope that requires me to find a single user logged into a large enterprise domain.
Whatever the reason, this processes can sometimes take a long time. Especially on a sizable network. Like most security auditors I’m not a big fan of doing the same thing over and over again so I decided to build a tool to help automate this process.
First we query HKEY_USERS to find out how many legitimate SIDs are currently logged in. We should see an output simalr to this.
Get The Code:
This is just a quick post to highlight some of the new features added to the developmental branch of Jigsaw with SQLite3 support. In order to use this tool you’ll need to first install the ‘sqlite3-ruby’ gem. I do all of my ruby development using version 1.9.2 installed via RVM, so I recommend a similar environment because In my experience installing gems can be tricky when not using RVM.
$gem install sqlite3-ruby
The help menu says that you can write to a database instead of a CSV file by using the -D option and specify the name of the .db file you want to output too.
Harvesting email addresses is a common part of any external penetration test. Several tools exist that can be easily found with a simple google search that can greatly decrease the amount of time spent combing through search engine results.
I have recently released a new tool into the BackTrack Linux penetration testing distribution that has proven useful on many of my external gigs.
Introducing Jigsaw. Jigsaw is a simple ruby script that searches www.jigsaw.com for employee records and crafts email addresses based on first and last name entries pulled down from their website.
Hey guys, just a quick post here. I wanted to share with you a simple ruby script I wrote that identifies web server URLs (if any) from a specified list of IP Addresses. I wrote this script for a recent Information Security Assessment where my client was unaware of all the URLs that were pointing to their external infrastructure (It happens more then you would think…) and provided me with only a list of IPs.
The script uses Bing’s Search API as well as the rbing ruby gem which has some prety self explanatory usage examples on the GitHub repository. Literally all it does is run the search ip:ipaddress for every host in the specified input file.
Run the script without any arguments or view the source code below for proper syntax and usage. Not much else to say about this tiny little guy accept that it proved to be quite useful during my last pen test. Hopefully someone else will find it handy too, as always code improvement suggestions are more than welcome.
It seems that more and more these days I find myself battling head to head against my client’s Antivirus Detection capabilities. Payloads I encoded to successfully bypass one solution get picked up by another. An executable that walked effortlessly past one AV this week gets stopped dead in its tracks by the very same software build at a different client the week later. This is a frustrating and constant problem for myself and many other Penetration Testers I am sure.
The topic of Antivirus Detection bypass is not a new one by any means. Currently there exist several methodologies that work well and I don’t think anyone (at least no one I know) can respectfully make a claim for a particular method being the De facto standard that works every time.
This article aims to provide some insight into one such method that I have become fond of and has proven quite successful in many of my recent Information Security Assessments. I first became aware of the technique by reading This Great Writeup from exploit-db. I’m not sure if the author is responsible for coining the term or not but they refer to this ancient wisdom and all of its magical powers under the alias “Ghost Writing” which I think sounds super cool!
- Playing With the New Burp Suite REST API
- Burp Suite 2.0 Beta Review
- Attacking Palo Alto Networks PAN-OS ‘readSessionVarsFromFile()’
- GPG Errors While Updating Kali Linux
- Installing Kali NetHunter on HTC Nexus 9
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