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LG announces a new update: Bringing a deadly improuvements to Remote.
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🦑Linux security tips:

1) Beware of the emergence of Linux virus at the beginning of Linux. Because of its original excellent design, it seems to have innate virus immunity. At that time, many people believed that there would not be a virus against Linux, but Linux is no exception. In the fall of 1996, an organization called VLAD in Australia wrote Staog, which was said to be the first virus under the Linux system, in assembly language.

2) It specifically infected binary files and tried to obtain root permissions in three ways. Of course, the Staog virus is designed to demonstrate and prove that Linux is potentially dangerous to be infected by the virus. It does not perform any damage to the infected system.

3) In 2001, a Linux worm named Ramen appeared. Ramen virus can spread automatically without manual intervention. Although it does not cause any damage to the server, its scanning behavior while spreading will consume a lot of network bandwidth. Ramen virus is spread by exploiting two security vulnerabilities, rpc.statd and wu-ftp, in some versions of Linux (Redhat6.2 and 7.0).

4) In the same year, Lion, another worm against Linux, caused actual harm. At that time, Lion spread rapidly through the Internet and caused serious damage to the computer systems of some users. Lion virus can send some passwords and configuration files to a mailbox on the Internet via email. After collecting these files, the attacker may enter the entire system again through the gap in the first breakthrough, and further damage Activities, such as obtaining confidential information, installing backdoors, etc. When the user's Linux system is infected with this virus, it is very likely that they may choose to reformat the hard drive because they cannot determine how the intruder has changed the system. Moreover, after a Linux host is infected with the Lion virus, it will automatically start searching for other victims on the Internet. The feedback after the event showed that the Lion virus caused serious losses to many Linux users.

5) Other viruses on Linux platforms include OSF.8759, Slapper, Scalper, Unux.Svat, BoxPoison, etc. Of course, most ordinary Linux users have hardly encountered them. This is because until now, there are very few viruses on Linux and the scope of their impact is very small. However, with the increase of Linux users, more and more Linux systems are connected to the LAN and WAN, which naturally increases the possibility of being attacked. It is foreseeable that more and more Linux viruses will appear, so how to prevent Linux viruses Become something that every Linux user should start paying attention to now.

6) Grasp the weaknesses. Everyone who breaks
Linux may have heard of or even encountered some Linux viruses. The principles and symptoms of these Linux viruses are different, so the prevention methods they take are also different. In order to better prevent Linux viruses, we first classify some known Linux viruses.

7) From the current appearance of Linux viruses, it can be summarized into the following virus types:
1. Viruses that infect ELF format files
This type of virus uses files in the ELF format as the main target of infection. A virus that can infect ELF files can be written through compilation or C. Lindose virus is a virus that can infect ELF files. When it finds an ELF file, it will check whether the infected machine type is Intel80386. If it is, check whether there is a part of the file with a size greater than 2784 bytes (or hexadecimal AEO). If there is, the virus will overwrite it with its own code and add the code of the corresponding part of the host file, and the host The entry point of the file points to the virus code part.

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