Pi-hole: Raspberry Pi Ad-Blocker [Advanced Setup]

Roll-your-own Pi-hole Ad-blocker!

Automated Install

Run this command only on a clean install of the Raspberry Pi running Raspbian.

curl -s "https://raw.githubusercontent.com/jacobsalmela/pi-hole/master/automated%20install/basic-install.sh" | bash

Continue reading “Pi-hole: Raspberry Pi Ad-Blocker [Advanced Setup]”

Roll-your-own Protection From A New Malware Called XSLCmd

A nasty piece of malware on OS X is XSLCmd.  Using a neat trick, you can get alerted if your computer gets infected.  This malware can open a reverse shell, list and transfer files, and install additional malware.  Definitely not something you want.  The problem with some malware–especially zero-day attacks–is that your anti-virus program might not detect it.  But using this trick you can at least know something got installed to your Mac that shouldn’t be there. Continue reading “Roll-your-own Protection From A New Malware Called XSLCmd”

How To Tell If Someone Is Spying On Your Computer Using GeekTool

[UPDATE]: An even better solution is the ScreenSharingMonitor, which provides a “native” feel thanks to the Notification Center messages. Continue reading “How To Tell If Someone Is Spying On Your Computer Using GeekTool”

Raspberry Pi + Cantenna: Ultimate 2.4GHz Wardriving and Long-range WiFi Access

Want to turn your Raspberry Pi into a portable antenna / wireless router that can be used to pick up WiFi signals from great distances?  I did.  I will walkthrough how to make the 2.4GHz cantenna using some cheap components and then setup the Pi as a router so you could search for WiFi access points, connect to them, and potentially relay the signal. Great for wardriving or just connecting to your home Wi-Fi from out in the backyard. Continue reading “Raspberry Pi + Cantenna: Ultimate 2.4GHz Wardriving and Long-range WiFi Access”

OS X: Roll-your-own Malware Detection

[UPDATE 2014-10-20]: This tricks seems to cause high CPU usage in Yosemite, try using launchd instead.

[UPDATE 2014-10-02]: defend yourself from becoming a zombie courtesy of Mac.BackDoor.iWorm

[UPDATE]: Use this trick to fend off the new malware XLSCmd

Macs are not immune to malware.  Authors of malicious software often try to get a LaunchDaemon or LaunchAgent installed onto your computer in one or more of the following locations: Continue reading “OS X: Roll-your-own Malware Detection”

Wi-Fi Cantenna (2.4GHz): How-to Make a Long-range Wi-Fi Antenna

Create a cantenna to drastically extend your Wi-Fi signal!  Works great with a router that has external atennas, like the old-school classic WRT54G. Continue reading “Wi-Fi Cantenna (2.4GHz): How-to Make a Long-range Wi-Fi Antenna”