This past weekend I gave a talk at BSides San Antonio titled “Pigs Don’t Fly – Why owning a typical network is so easy, and how to build a secure one.” I took a top-down look at the security barriers in a typical organizational network, the many techniques attackers use to break them, and how [...]
This is off the security topic, but I was really excited to find this online, so deal with it. Everyone who votes needs to understand this. We have all heard the fallacies before, and it’s hard not to disagree. When people need jobs, why can’t the government create jobs with public works projects? Don’t all [...]
All of the below are supported ways of remotely executing code that are built-in to Windows. If psexec isn’t working since a service is not running or ports are blocked, you can try all these other options; defenders who want to detect intruders moving through the network need to detect all of these; incident responders might want to look for evidence of these…
You may have found yourself in a situation where you have access to a system through a limited user account, or could not or did not want to bypass UAC (AlwaysOn setting for example) and you needed to continue running code even when the account logged off and/or the system rebooted (and even if you [...]
Well, the Mayan Apocalypse came and went, and since we’re all still here, it’s time to get back to computer security. It shouldn’t be a surprise that the most likely way you’ll get exploited is through your browser, so you should routinely check for vulnerabilities there. I was inspired by some of the free browser [...]
I gave an updated Ambush Presentation at Derbycon today… On the attack side, I demonstrated Hoarder, which is a proof of concept to bypass standard hook-based host intrusion prevention systems by avoiding making any calls to OS DLLs at all, and only making raw syscalls to the kernel. It works in two steps. First, the getdlls program opens the target executable and recursively reads it and all of its required DLLs into C language byte arrays.
I frequently get asked how to set up a test lab to practice hacking on… So I looked through some release timelines and oldversion.com postings to figure out which versions of your favorite browser, plugins, and PDF reader would be installed if you had up-to-date versions of each on January 1st of the past three years, and where you can get them from. Enjoy.