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Dec 31, 2019 Actually this is a note to the developer, Patrick Wardel, since I did not find a way to contact you thru your app. After opening the zip file, I went to slide KnockKnock into my Applications folder in the HD. I got the OS notice that moving it there required an admin PW. This is a must have utility for all Mac users, that checks all Login. Nov 04, 2013 Now you can use it as a password. You never even have to open the app— just knock on your phone twice, even when it’s in your pocket, and you're in. And if you have an Apple Watch, you can unlock your Mac right from your wrist. Using Knock won't.
Knock uses a combination of an iPhone app (currently offered at an introductory price of $3.99) and a Mac app (available for free at Knock’s website) to enable unlocking of your Mac, wirelessly, by just knocking the back of your iPhone.
It’s a surreal experience. After a couple of minutes of initial setup, you lock your Mac and rap the back of your paired iPhone twice. Your Mac unlocks. The app doesn’t even have to be forefront on your phone, although it does have to be ‘open’ in the multitasking tray. In fact, your phone doesn’t even have to be unlocked. When it senses the Mac is near, a notification appears on the lock screen instructing you to knock. There are some nice UI touches too. For instance, echoes of the ‘sound wave’ appear on OS X’s lock screen in real time as you knock. It’s a subtle visual indicator that the system is actually working.
The app uses Bluetooth Low Energy to communicate with the target Mac. This is what allows the app to operate whilst backgrounded (using the CoreBluetooth API’s originally introduced in iOS 5) and it also means that battery drain on the phone is minimised. In order to take advantage of this neat effect, naturally, you need a recent Mac and iPhone (4S or later) that has Bluetooth 4 compatibility. Helpfully, the Mac menubar utility will tell you during setup if your computer is supported. The best movie software for mac.
In practice, the system failed on me a couple of times in testing. The phone just couldn’t detect my laptop’s presence. Quitting the app and reopening remedied these connection issues, however.
As a gimmicky party trick, this is the best thing I’ve seen all year. As a tech demo of Bluetooth 4 and iOS 7, it is undeniably pretty cool.
In terms of real-world utility, though, I’m not as enthused. I do not find typing a password for my Mac to be a huge chore, although to be fair I’m not in a setting that necessitates unlocking my machine numerous times a day. Regardless, as it stands, if an malicious individual manages to steal both your iPhone and your Mac, all security is foregone (as the iPhone can unlock the Mac without needing to be unlocked itself).
Knock is $3.99 for the iPhone. The accompanying Mac app can be found at the developer’s website.
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For years Mac OS users have been snug about the fact that there too few malwares and trojans that can harm their Mac OS X. Between these far and few malwares, the Anti-virus that are available for Mac OS X usually identified them and quarantined them. However all this is to prove wrong with what Patrick Wardle has done.
Security research and developer Patrick Wardle has released a tool to reveal executables that automatically boot in Mac OS X. The Knock Knock tool was open source and built on an extensible framework to encourage the community to evolve the platform. You can download the Knock Knock tool from Github here.
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Synack’s Patrick, who has released this tool, said he designed the tool because he was concerned about the lack of insight into the potential for persistent malware to load on his OS X machine. He said that his worries were justified given that Apple is giving very “feeble” anti-virus protection and that a further 33 OS X malware families were discovered last year.
“I was really bothered by the fact that I did not know what was automatically executing on my computer or if there was any persistent malware on my computer that I wouldn’t know about it,” Wardle said.
“[Knock Knock] should show me everything that is set to automatically execute when my Mac is rebooted. “I’ve run it on some friends’ computers and actually found a bunch of OS X malware.”
He stated that his studies showed that even a fully patched PC running on Mac OS X was “not that secure” and that the built-in anti-malware mechanisms were “pretty lame” to be trusted for security.
“There [are] tonnes of ways for malware to persist on OS X and Mac malware is certainly a reality, particularly if you’re a Chinese activist or one of my friends who I guess have questionable browsing habits.”
One of the first things the newly released Knock Knock Tool did was to detect the “clipboardd” persistent malware when it listed all binaries unsigned by Apple meaning users needed to have knowledge of OS X malware.
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Clipboardd copies Mach-O from its current location to HOME/Library/LaunchAgents/clipboardd and creates a plist file in the same directory with the name com.apple.service.clipboardd.plist.
Wardle said since Knock Knock Tool is open source, Plugins could be added to scan for new persistence techniques to keep it abreast of threats. He also stated that writing the plugins was simple and noted the beta-phase command line tool was stable and usable.
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You can watch the video below to know more about Knock Knock Tool