My Free Tools

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EncFSGui – GUI Wrapper around encfs for OSX

Introduction 3 weeks ago, I posted a rant about my frustration/concern related with crypto tools, more specifically the lack of tools to implement crypto-based protection for files on OSX, in a point-&-click user-friendly way.  I listed my personal functional and technical criteria for such tools and came to the conclusion that the industry seem to […]

A chain is only as strong as its weakest link – DNS Hijack Monitoring

It doesn’t really matter how much time your developers have spent writing secure code and how many layers of security you have implemented to protect your website from being hacked and defaced.  Recent incidents have demonstrated that the bad guys will simply look for and find an easier way to hurt your business.  Instead of […]

Jingle BOFs, Jingle ROPs, Sploiting all the things… with Mona v2 !!

Ho Ho Ho friends, It has been a while since we posted something on the Corelan Team blog, I guess we all have been busy doing … stuff and things, here and there.  Nevertheless, as the year is close to filling up 100%, it’s probably a good time to start thinking about finding some convincing […]

Script to backup Cisco switches via telnet / tftp

A couple of days ago, I have released a small perl script to back up Cisco IOS based switches via telnet. I know there are a couple of similar scripts available on the internet, but most of them either use the “expect” functionality (which does not work all the time), or use SendKeys (which only […]

Fuzzing with Metasploit : Simple FTP fuzzer

Just wanted to drop a quick note about the release of another free script. This time I’ve written a simple FTP fuzzer (with a little help from HDMoore) in Metasploit. You can read more about it (and download the script) at http://www.corelan.be:8800/index.php/my-free-tools/security/metasploit/simple-ftp-fuzzer-metasploit-module/ This is why I like Metasploit so much… :-) Update : after running […]

Free tool : Find out where your AD Users are logged on into

Hi, I decided to release another free utility I wrote a while ago. This small command-line utility can be used to find out where Active Directory users are logged on into, and/or to find out who is logged on on specific machines.  This should include local users, users that are logged in via RDP, user […]

Exchange 2007/2010 : Renaming attachments ‘on the fly’ – custom transport agent

It may sound a bit extraordinary, but I needed to have the ability to change attachment filenames while they were being processed by the transport service on Exchange. I can’t really tell you why I needed this functionality, but I guess there could be many reasons to do so. (e.g. zip files should be renamed […]

Free tool : Windows 2003/2008 Certificate Authority Certificate List Utility for pending requests and about-to-expire certificates

In one of my earlier posts, I have talked about setting up a Windows 2008 based Certificate Authority/PKI. Once your Windows 2008 CA setup is in place and configured, you can go ahead and starting issuing certificates. But at the same time, you need to put a maintenance/management procedure in place so you can stay […]

Nessus/OpenVAS wrapper for ike-scan

ike-scan is a great tool to audit VPN/IPSec implementations.  This tool, which runs under Lunix, Unix, MacOS and Windows, can be found at www.nta-monitor.com/tools/ike-scan/ (Latest version at time of writing is 1.9). My Nessus ike-scan NASL wrapper may or may not work with earlier versions or newer versions, so test test test) Some of the […]

Monitoring your network with Powershell

I have written a small powershell script that will help you to monitor various hosts on your network.   Instead of using ping to see if a host is alive, this script will connect to tcp ports, so you can also monitor hosts behind firewalls (or hosts that cannot be pinged).  In addition to this, you […]

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