Do APK files that make mobile phones "gasp" really steal information?

The real name of this product is Joke

for the best TA-this is the name of this APK file, exactly the nickname given by the first propagator. On the Internet, there are many speculations about the origin of this file, including tricking files, malicious software, prank tools or viruses.

In this regard, Tang Wei, vice president of Rising, said that there is usually a gray area in the definition of virus. When a program is forced to start and cannot exit normally, it can be called a virus. Judging from the current phenomenon, the APK file forcibly intercepts the functions of return and touch screen buttons, which makes it impossible to exit the program, so it belongs to a virus and is in the scope of antivirus software.

so among many virus types, which one does it belong to?

Originally, this kind of virus was defined as Joke, which is also a prank program. As the name implies, the meaning of this kind of virus is to trick the people who download it and have a bad influence on the owner.

PC simulators have not been spared

As we all know, even on PCs, many people can play mobile phone applications every day, which is attributed to mobile phone simulators.

Yes, this APK file can be run on the Android emulator of the computer, which makes the emulator go crazy, but it will not affect the computer itself. The only way is to use anti-virus software to scan and kill the program downloaded to the user's local root directory.

Zhou Jun said that both mobile phones and computers are killed based on the code and data characteristics of identification programs. After reverse analysis, specific killing data information can be written into the anti-virus software, thus increasing the killing function.

At present, the killing software on the mobile phone can only scan and prompt the owner that there is a virus before downloading, but it can't be banned after downloading. Therefore, for those students who are used to prompting through all software, be careful!

To tell the truth, this prank program has little impact on PC because its function is too simple. Because there is not much information that can be traced back to the source, it is impossible to confirm who the author is at present. Because the main code implementation is not complicated, it is not excluded that it is done by students.

stealing owner information? Not necessarily

As mentioned above, as a prank program, the only skill of the APK file is to trick people.

Zhou Jun said that regarding the rumors on the Internet, we didn't find the relevant code of "this prank program steals user information". Nevertheless, it is not certain that the file does not have this risk, because the code related to screen capture is indeed found in it, but it has no substantive use at present.

this screenshot code is in an Activity alone, which may be called globally through Intent notification. Even if there is no problem with the code, in theory, if it is called, it will still take screenshots all the time, but at present, there is no related operation to send screenshots by email and network.

well, at least this APK file is harmless for now. However, just a trick program is enough for students who are busy. After all, many students on the Internet claimed that they were forced to run this program at an inappropriate time, and even deducted credits from the school.

Of course, judging from the seriousness of the current impact, the document is far from reaching the point of angering schools and even educational institutions. Because it can only be spread by hand, it is really self-defense for people who are not curious.

As the saying goes, once bitten, twice shy. Perhaps, the emergence of Joke is a good way to force students to "quit the machine"; When I think of it in the future, it may be called a childhood memory.