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Mar 5, 2014 - Its findings are mostly applicable for Mac OS X (Snow Leopard), but some findings are general for other Unices and unix-like systems (Linux). When you download and install the software with trial time, the application (software) must get know, when the trial period started and wether the trial period is. NMac Ked Download cracked Apple Mac OSX apps & games for free, new and updated apps & games from inside and outside Mac AppStore.
Greetings Mac Arsians, I recently posted in another thread about uninstaller apps, and I was just testing one out called AppDelete that allows you something like 5 uninstall tries before it stops working and makes you pay. So I actually used one of the other uninstaller apps to uninstall AppDelete completely and then I tried to redownload it again to test it out further, but it still won't work again. Patch Editor Xbox 360.
So I'm wondering.what exactly do these trialware programs leave behind on my computer that lets them detect that your trial period has expired? I'm not trying to circumvent any copy protection or anything, I'm just genuinely curious about what (and where) they leave behind. How do they detect that? Well behaved apps which trust their potential customers will store this information in a plist in ~/Library/Preferences.
AppDelete, for example, might store this info in the file: YOUR_USER/Library/Preferences/com.companyname.AppDelete.plist That being said, the forever war of scummy users vs scummy developers results in this data being written into odd places with unpredictable names. In which case you may never find the file where this data is stored.
It might be stored in something tricky like ~/Library/Application Support/AddressBook/Metadata/C433D242-DB05-4894-A387-EC5B1B62A540/ABPerson In other words, a file which looks 'official' and won't interfere with system functionality, but only AppDelete knows the name and location. In principle you might sleuth this out using lsof to see which files are touched while AppDelete starts up. Originally posted by Shamyl Zakariya: Well behaved apps which trust their potential customers will store this information in a plist in ~/Library/Preferences. AppDelete, for example, might store this info in the file: YOUR_USER/Library/Preferences/com.companyname.AppDelete.plist That being said, the forever war of scummy users vs scummy developers results in this data being written into odd places with unpredictable names. In which case you may never find the file where this data is stored.
It might be stored in something tricky like ~/Library/Application Support/AddressBook/Metadata/C433D242-DB05-4894-A387-EC5B1B62A540/ABPerson In other words, a file which looks 'official' and won't interfere with system functionality, but only AppDelete knows the name and location. In principle you might sleuth this out using lsof to see which files are touched while AppDelete starts up. Wow, that *is* scummy. Incidentally, deleting AppDelete's plist file doesn't reset the trial. So it's storing that info somewhere else.and what's even odder is that I used an app uninstaller to delete it, so whatever file it left behind wasn't detected by them.
Originally posted by Shamyl Zakariya: In other words, a file which looks 'official' and won't interfere with system functionality, but only AppDelete knows the name and location. In principle you might sleuth this out using lsof to see which files are touched while AppDelete starts up. Wow, that *is* scummy. It happens more than you know. I've seen hidden files, files named as if part of other products, I've seen junk put in root, in /usr it's really a disgrace. I loathe the litter left by software trials or registered products.
It's one reason I starting using AppZapper and such hoping to reduce the orphans junk cluttering things but, unfortunately, they don't help with such matters. Originally posted by autumnmist: Let us know when you figure out what file AppDelete is reading from. On one hand, AppDelete is stuffing things in another application's preferences file.
That's both rude and obvious, if you pay attention to your system when running a new application. (A very good habit to get into.) On the other hand, I don't think it'd be very nice of me to post instructions for how to reset this developer's trial. Dragon Naturally Speaking Professional Italiano Torrent. Just watch with Instruments, Tracker or fsevents. (Instruments is my favorite.) It stands out like a sore thumb. Originally posted by autumnmist: Let us know when you figure out what file AppDelete is reading from. On one hand, AppDelete is stuffing things in another application's preferences file. That's both rude and obvious, if you pay attention to your system when running a new application.
(A very good habit to get into.) On the other hand, I don't think it'd be very nice of me to post instructions for how to reset this developer's trial. Just watch with Instruments, Tracker or fsevents.
(Instruments is my favorite.) It stands out like a sore thumb. I'm not a programmer, so I don't think I have the ability to do any of that myself. I wouldn't mind seeing some screen caps showing the offence, though. I don't think it's unethical to just show what the heck the app is doing. I highly doubt that anybody here has the intention to use such information to extend their trial periods indefinitely.
I certainly won't be installing it again. Originally posted by Billy_ca: I don't think it's unethical to just show what the heck the app is doing.
I highly doubt that anybody here has the intention to use such information to extend their trial periods indefinitely. I certainly won't be installing it again. I'll show you how to see just what an app is doing to your files, because this is an important skill IMO. Here it is using instruments:.
To launch the application and monitor its activity. Invoke the behavior you wish to monitor. To narrow down the files you see. I chose 'Preferences' here. One of the files in that list is highly unusual for an application to read, and it's reading it in this case because it's written something there already. And just to be doubly clear about this particular case.
Though I consider it quite rude for an application to write to another application's plist file that way, I don't see a realistic way that this specific instance harms your system. When you execute a program, there is no further reason to talk about security. You should only execute trusted programs, because once it's executed it can do anything it wants to your preferences, files, whatever.
And if you execute it with administrative privileges, it can do anything at all that can be done to your computer. Almost all security is designed to prevent untrusted applications from executing on your system (i.e., unpermissioned apps). File system access is rather more sophisticated than just throwing in some bits with a blindfold on. If the file is locked for writing because another app has it open, then the syscall is going to say that and the program will either wait and keep checking until it can write, or it will quit.
Originally posted by masonk: 1. When you execute a program, there is no further reason to talk about security. You should only execute trusted programs, because once it's executed it can do anything it wants to your preferences, files, whatever. And if you execute it with administrative privileges, it can do anything at all that can be done to your computer. Well, there is the issue of corrupting the program with bad data to then utilize the program to compromise your system. While Word viruses and trojans are the obvious example of this there are others. (As I recall that hack on the Dali Lama's office was done with a PDF) So I don't think security ends once you install a trusted program.
That's like saying security ends once you install a trusted OS. All of this is why many of us are crying for Apple to finish their sandboxing efforts. It would vastly improve application security. File system access is rather more sophisticated than just throwing in some bits with a blindfold on. If the file is locked for writing because another app has it open, then the syscall is going to say that and the program will either wait and keep checking until it can write, or it will quit. In theory anyway. In practice I've encountered lots of badly coded programs that don't deal with multi-user situations well.
A lot of Applications make loose assumptions. (Often justified, in the case of obscure files, but still.).