not easy to remove

Put a great burst of spirit, Xu Yi finally clarify this issue, from the girl's back view, she seemed to understand the principle of them. She found a company own a "significant" BUG cheering, but the cheering, she finally remembered one important thing: "Yi brother, the BUG has nothing to do even if it exists, this problem is rarely encountered after to, and what role did not look. "

"Of course there is a role, an important role. One important ability of a hacker is looking to take advantage of loopholes in seemingly unassuming little things to make a surprise."

"Ah? This BUG can be exploited it?"

"Of course." I often use, ha ha ha.

"Please tell me how to use ah? This vulnerability, but I found it."

Spray! Like she had a few to get high. Xu Yi quickly and timely to remind her to go out this loophole can not be revealed, if the spread, we all know, the future is not brilliant.

"Well, well, I will not tell anyone. You are not allowed, this is a secret between us. Yi brother, you tell me what is the use of this BUG in the end it." Yan Yu keen on the idea, repeatedly urged.

"Oh, in fact, this folder is a real folder, it has the function of the folder, but has some other features, is one of them is not easy to remove."

"Folder features? You mean we can store other files in there?"

"Smart!" A little girl to pass.

Wen Yan Yan Yu, immediately re-built a special folder, and then dragged a TXT text file on it, the result has pop up a dialog box with a red cross on the warning, saying "... ... refers to an unknown unknown ... ... Please sure the disk is properly connected ... ... "and so on.

Ming, no it! Xu Yi Yan Yu and can only ask.

"Oh, how your mind is still stuck in place? Said this is more special folder, and can not be used in their own mind to think about potential problems."

Such a reminder by Xu Yi, Yan Yu sober mind immediately. To be used in order to remove it with a DOS command console, then put the file there, and certainly it! She hastened to prove from his own speculation, sure enough, the fact that it is. She was clapping and cheering. Yan Yu clever idea for the file inside, give it added the equivalent of a lock, people do not know if this principle, there is no way Take this folder, naturally, there is no way Take the paper inside .

Ah, so if they want to get inside the file how to do? TELL Yan Yu, immediately and with the "MOVE" command, the file will be moved just moved into out. This is also proved successful. Then turn the move into it.

"Yi brother, really so yeah! Go into."

Xu Yi did not say the other, but say one thing: "Little Erh, you delete that folder and see."

Yan Yu and in accordance with the earlier method, using RMDIR operate under DOS and found that not even delete it! Which prompts for the "folder is not empty."

Ah? Is it not delete it? Yan Yu Some surprised. If so, then this file can only have been lying here. But she quickly came up with a solution, since the folder is not empty can not be deleted, and that she let this folder is empty then delete, so she put inside the paper just moved into a shift out, and then successfully deleted this folder.

Yen Yu said this method to listen to Xu Yi, he was slightly surprised a moment, apparently did not think this way, then laughed, although this method is cumbersome, it is "stupid", but may well be a solution, but this method there is a huge flaw.

"Although this approach feasible, but only when their experiment with. If the other party invaded your computer, and then set up your hard drive inside one of these folders, then entered, and put a lot of files, then you should how to do? "

Yan Yu is also surprised a moment. Yes ah, If so, then how to delete it? Entered, the file kept by the other party is not going to tell their own nature, how will it know how much their own files, those files name? Does not that there is no way out?

Girl wrestling admit defeat, she finally thought of a killer move: "In that case, I will be formatting the hard disk!"

"Ha ha ha, yes, this is a solution. But if the other party to create a folder in the system tray, then format the hard disk to a big loss. They have to re-install the system, and that much trouble? To know that a server system configuration is extremely troublesome, and often have to spend a lot of time and effort to maintain staff, how can so easily that format to format. "

"Does not that there is no way out?"

"Way of course. Actually very simple, as long as you remove the back add a parameter on the line, an example is 'RMDIR / S folder name'. The meaning of S, that is, whether there are no documents, but also be deleted."

Although this method is simple, but it should also be familiar to the DOS command can, this is a lot of people are not aware of.

Yan Yu finally know the role of this folder is one: hiding things. Well something, anything can, hacking tools Rights, Rights of important documents (H films ,^_^), virus (ignoring the anti-virus software) you, horses in so much more.

Next, Xu Yi told her another one: the hard disk bomb. In fact, this is also the use of ordinary people do not know how to delete these folders in principle, prepared a program (virus or the batch will do), the establishment of one or more of these folders, and then entered, and copy something, the bigger the better, and thus be the host computer hard drive smaller and smaller until there is no ... ....

In addition, there is a feature of this folder, that is, no matter how many files you put in, it always displays the file size to zero, but in fact it takes a real hard disk space, it is easy to hide.