New trends in viruses: Spread backdoors Using Systems

On June 16, January 23, rising global anti-virus monitoring network intercepted a new virus, Win32.Ditex, and named it "system backdoor"-a system virus carrying Backdoor programs. According to analysis by rising anti-virus experts, the virus can spread system "backdoors" through infected files, posing a great security risk.
The virus browses all the storage devices connected to the system, including the local hard disk, mobile hard disk, and network-mapped drive, and searches for All executable files, add itself to the end of the file in encrypted form to complete infection. When the infected file is running, it will continue to infect other files, so that the virus will soon infect all executable files in the system.

Infected computers spread the "system backdoor" virus through various channels, such as mutual copying, local area network writeable folders, and emails.

In addition to the ability to infect system viruses, the harm of "system backdoor" also comes from its "backdoor" program. It opens a virus channel in the system of the infected computer, so that people who know the virus characteristics can use this "secret" channel to do whatever they want on the user's computer.

At this time, the external operator can perform various operations on the infected computer: upload some viruses or hacker programs, steal any confidential information from the computer, and even delete the system and format the hard disk. This "backdoor" Program of the virus is combined with the above infection capabilities, and the result is that the "backdoor" can be opened wherever the virus is infected while spreading quickly.

Especially for local networks of enterprises and institutions, once a machine is recruited, all computers in the LAN will be infected one after another, and then "backdoors" will be opened ", in this way, the entire LAN will become a "unprotected City" for malicious external operators ".

Rising company will immediately update the virus to version 15.19 that night. Please upgrade the virus to avoid unnecessary losses.

[Virus tips]

Rising anti-virus Engineers believe that "System backdoors" have unique "Innovations" in programming, which also reflects the development direction of new network viruses. "System + backdoor" is not only a combination of functions, but also a combination of programming techniques.

The virus subject is compiled in the advanced language VC ++ and has powerful functions. Users who know about virus technology know that virus functions in advanced languages are relatively strong and suitable for network communication. However, advanced languages are too rigid and inflexible, it is impossible to write underlying functions such as infected files and encryption and decryption. Therefore, system viruses are rarely written in advanced languages and often in assembly languages.

An important feature of the virus technology is to combine the network transmission of Network viruses and the underlying infectious functions of system viruses, namely: use advanced languages for virus-related big frameworks and networks, and write core functions in simplified assembler languages: infection, encryption, and decryption. The combination of these two programming technologies makes the virus more widely transmitted and hard to be cleared.

Here, Rising anti-virus experts reminded users that the virus has shown a new trend: more complex programming, more complicated infection, more complex detection and removal, and more complex destruction. Individual users use manual virus detection and removal, and local area network users use a stand-alone version to disable the network and eliminate viruses, making it increasingly difficult to prevent new viruses. In order to protect the information security of computer users, please select the appropriate anti-virus software. In particular, it is pointed out that LAN users should switch to the web-based antivirus software as soon as possible.