Performance of mobile phone virus

What are the manifestations of viruses in mobile phones? First, the concept of mobile phone virus.

Mobile phone virus is also a computer program, which is as contagious and destructive as other computer viruses (programs). Mobile phone viruses can be spread by sending SMS, MMS, email, browsing websites, downloading ringtones, etc. Cell phone virus may cause the user's cell phone to crash, shut down, delete data, send out spam, make phone calls, etc. , even damage the hardware such as SIM card and chip.

Second, the working principle of mobile phone virus

The software in the mobile phone, embedded operating system (the operating system solidified in the chip, generally written in JAVA, C++ and other languages) is equivalent to a small intelligent processor, so it will be attacked by viruses. Moreover, short messages are not only simple words, but also include ringtones, pictures and other information, which need to be interpreted by the operating system in the mobile phone and then displayed to the mobile phone users. Mobile phone viruses invade mobile phones by virtue of loopholes in software systems.

In order to spread and run mobile phone viruses, mobile service providers need to provide data transmission functions, and mobile phones need to support advanced programming functions such as Java. Nowadays, many mobile phones with internet access and download functions may be invaded by mobile phone viruses.

Third, the harm of mobile phone virus

1, resulting in the theft of user information.

Nowadays, more and more mobile phone users store personal information on their mobile phones, such as personal address book, personal information, schedule, various network accounts, bank accounts, passwords and so on. These important materials are bound to attract people with ulterior motives? Drooling? They will write all kinds of viruses to invade mobile phones and steal important information from users.

2. Disseminating illegal information.

Nowadays, MMS is very popular, which facilitates the spread of pornographic and illegal pictures, sounds and movies.

3. Destroy the hardware and software of the mobile phone

The most common harm of mobile phone virus is to destroy the hardware and software of mobile phone, which leads to the failure of mobile phone to work normally.

4, leading to communication network paralysis.

If the virus infects the mobile phone, it will force the mobile phone to send junk information to the communication network where it is located, which will inevitably lead to information congestion in the communication network. These spam messages will eventually paralyze the local mobile communication network.

Fourth, the types of mobile phone viruses.

Mobile phone viruses can be divided into four categories according to virus forms:

1, pass? No red transmission? Viruses spread by Bluetooth devices? Kabir? 、? Lasker, a? .

Little knowledge:

? Kabir? Cabir is a network worm that can infect running? Symbian？ Mobile phone with operating system. After the virus is found in the mobile phone, it will use the Bluetooth wireless function to scan other mobile phones with loopholes nearby. When a vulnerable mobile phone is found, the virus will copy itself and send it to the mobile phone.

Lasco and virus A spread wirelessly to other mobile phones via Bluetooth like worms. When the user clicks on the virus file, the virus is activated immediately.

2. Mobile phone virus targeting mobile communication providers? Mosquito trojan horse? .

Little knowledge:

Viruses are hidden in mobile games? Fight mosquitoes? In the cracked version. Although this virus will not steal or destroy users' data, it will automatically dial and send a large number of short messages to numbers located in Britain, resulting in a sharp increase in users' information fees.

3. A virus for mobile phone bugs? Mobile phone hacker? .

Little knowledge:

The virus of Hack (mobile, smsdos) is spread by short messages with virus programs. As long as the user views the short message with virus, the mobile phone will automatically turn off immediately.

4. Attack by SMS or MMS? Mobile, SMSDOS? Virus, a typical example is aimed at Siemens mobile phones? Mobile, SMSDOS? Viruses.

Little knowledge:

? Mobile, SMSDOS? Viruses can be spread by SMS or MMS, causing errors in the internal programs of the mobile phone, which makes the mobile phone unable to work normally.