Category: Security

Windows 8: Using PowerShell to Decrypt Wireless SSID Passwords with NetSH

Show the saved password for SSID named “SSID_NAME” in Windows 8. ((netsh wlan show profiles name=”SSID_NAME” key=clear | select-string “Key Content” ) -split(” Key Content : “))[1]      

BlueHat 2014 Slides: Reality Bites – The Attacker’s View of Windows Authentication and Post-exploitation

Each year, Microsoft invites security researchers (aka hackers) to speak to Microsoft employees about security issues. One of the most interesting talks listed at “BlueHat” 2014 was the one by the “Pass-the-Hash” experts, Chris Campbell, Bejamin Delpy, and Skip Duckwall. This talk will focus on the how Windows authentication works in the real world and …

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Active Directory (and other) Security Resources

I just posted a “Security Resources” page that is a tab at the top of the site. This page contains useful security resources I have found over the years and plan on updating the content as needed. Active Directory (and other) Security Resources

Microsoft EMET 5 Configuration to Mitigate PowerPoint Zero Day

Microsoft Security Advisory 3010060: Vulnerability in Microsoft OLE Could Allow Remote Code Execution (Published: October 21, 2014) PowerPoint Zero Day Vulnerability Executive Summary: Microsoft is aware of a vulnerability affecting all supported releases of Microsoft Windows, excluding Windows Server 2003. The vulnerability could allow remote code execution if a user opens a specially crafted Microsoft …

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Comparing ASLR on Windows & Linux

Two key differences regarding Linux & Windows Address Space Layout Randomization (ASLR): ASLR is not as prevalent in most Linux distributions as it is on modern Windows systems. ASLR cannot be force-enabled for applications on Linux, as EMET can do on Windows. Read the entire article at Cert.org

XEN Hypervisor Vulnerabilities

And you were wondering why Amazon had rolling reboots of EC2 recently… From the Whitepaper “FROM RING 3 TO RING0: EXPLOITING THE XEN X86 INSTRUCTION EMULATOR” (bitdefender): ABSTRACT While a VMM can provide a considerable level of security by isolation, it is generally true that by increasing the code-base that runs on a given host …

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BadUSB Overview (Presentation & Slides) & Recent Release of BadUSB Exploit Code

BadUSB – The problems with USB One of the best talks I saw at BlackHat USA 2014 was on security issues with USB that are built into the spec (i.e. can’t be changed easily). BadUSB Black Hat USA 2014 Presentation Slides BadUSB Black Hat USA 2014 Presentation Video Here are the primary reasons why USB …

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Using PowerShell to Perform a Reverse DNS Lookup in Active Directory

Typically, one would use ping -a to get the hostname for a specific IP address which performs a DNS reverse lookup. Querying AD for a computer with an IP works great for computers joined to the Active Directory domain since most computers in AD have the IP Address configured on the computer account. When the …

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Black Hat USA 2014 Presentation: Investigating PowerShell Attacks

Black Hat USA 2014 Presentation: Investigating PowerShell Attacks This is an excellent presentation and I highly recommend anyone who is an admin or who is responsible for AD security. Investigating PowerShell Attacks Ryan Kazanciyan Technical Director, Mandiant Matt Hastings Consultant, Mandiant Over the past two years, we’ve seen targeted attackers increasingly utilize PowerShell to conduct …

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ShellShock/BashBug – Bash Vulnerability Affects Linux, Unix, & Mac OSX

10/01/2014 Updates: Shellshock: Vulnerable Systems you may have missed and how to move forward VMware Begins to Patch Bash Issues Across Product Line Honeypot Snares Two Bots Exploiting Bash Vulnerability Updated (9/29/2014): PowerCLI script for checking VMWare systems.for BashBug vulnerability ShellShock webscanner Dark Reading: New BashBug vulnerabilities surface Dark Reading: Making Sense of ShellShock Chaos …

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