LAN virus problem, experts please enter

It should be an ARP virus, the next ARP firewall, fixed IP, you can find out that it is that machine.

However, when it comes to IP conflicts, it's not just 1, at least 3 or more.

As long as you find out that it's the machine, that's it.

This should be the ARP virus.

You can look for the arpkill software to see which computer it is.

**If you can't open it, refresh it a few more times.

There are also a lot of intranet viruses! ARP is also an intranet attack, but to be precise, it is not a virus, it is just a protocol attack, and ARP itself is legitimate. ARP attack is an attack technique against Ethernet Address Resolution Protocol (ARP).

This type of attack allows an attacker to obtain data packets on a LAN and even tamper with them, and can make it impossible for a specific computer or all computers on the network to connect properly.

You can try the immune network, the immune network is a concept, and the immune network solution is a technical means.

First of all, the technology of immune network solution should be added to the traditional network, so that the network itself has the function of independent defense, so as to ensure that all attack traffic, shock waves, worms, etc. are intercepted at the source, that is, on the client, so that harmful data does not enter the intranet. Thus enabling the immune network.

1. Fast infection speed: In a single-machine environment, the virus can only be brought from one computer to another through a floppy disk, while in the network, it can spread rapidly through the network communication mechanism. According to the measurement, for the normal use of a typical PC network, as long as there is a virus on one workstation, it can infect all hundreds of computers on the network within tens of minutes.

2. Wide diffusion: Because the virus spreads very quickly in the network, the spread range is very large, not only can quickly infect all computers in the local area network, but also spread the virus to thousands of miles away in an instant through remote workstations.

3. The forms of transmission are complex and diverse: computer viruses are generally transmitted through the way of "workstation-server-workstation" on the network, but the forms of transmission are complex and diverse.

4. It is difficult to completely remove: computer viruses on a single machine can sometimes be deleted by deleting toxic files. Measures such as low-level formatting of hard disks can completely remove viruses, and as long as one workstation in the network fails to disinfect, the entire network can be re-infected by viruses, and even a workstation that has just completed the removal work may be infected by another workstation with poison on the network.

Therefore, virus removal on workstations alone cannot solve the harm of viruses to the network.

5. Destructive: The virus on the network will directly affect the work of the network, reduce the speed and affect the work efficiency, and collapse the network, destroy the server information, and destroy the work for many years.

6. Excitability: The conditions for network virus activation are diverse, which can be the internal clock, the date and user name of the system, or the communication of the network. A virus program can be fired and attacked on a workstation at the request of the virus designer.

7. Potentiality; Once a network is infected with a virus, even if the virus has been removed, the potential danger is enormous. According to statistics, after the virus is cleared on the network, 85% of the network will be reinfected within 30 days.

It is precisely because of these unique characteristics of LAN viruses that viruses are spreading rapidly in a variety of forms with the help of LAN, they attack clients, servers, and gateways, and the stand-alone antivirus can no longer effectively solve the problem, so the network version of the antivirus software is needed to completely eliminate it.

QQ uses the security center, and Want Want uses mobile phone binding, so you are no longer afraid of being stolen and use it with confidence.

To prevent the spread of viruses, you can use antivirus software to automatically clean up the entire disk after scanning, and then shut down the computer and scan again.

Antivirus software can be used 360 antivirus or poison bully, etc.

Use Security Guard and then enable ARP Firewall. Or Rising Firewall can also be turned on, and ARP anti-spoofing can be turned on. If you know the MAC address of the gateway, you can also use the command arp -s gateway address MAC address in cmd, so that the binding is static.

en The above is very right for a friend, go check it on the Internet.

1. If there is no virus in the local area network, of course it will not "generate" the virus.

2. Sharing permissions are read-only and writable. If it's read-only, you won't get a virus even if someone else's computer is infected and they access your computer by sharing. However, if the visitor has the "write" permission, the other party's computer may be infected with a virus.

3. Suggestion: If you only need to show your shared content to others (without changing it), please use the "read-only" way to share.

If the sharing permissions are not done well, there will be an outbreak of viruses. It's best to share all as read-only

Hello: Potato Wheels.

Carry out a comprehensive anti-virus on your computer, open the anti-virus function in Tencent Dena Handwheel Brain Manager and choose lightning detection and killing or full investigation and killing, Tencent Computer Manager is a professional anti-virus software that uses the "4+1" core "core" antivirus engine.

May my answer solve your worries.

Of course, it's antivirus, and it's going to be antivirus for every computer in the local area network.

Because this situation can easily cause other computers to be infected by viruses as well.

2. Open the anti-virus page to start the killing, remember to turn on the little red umbrella engine. If normal antivirus does not solve the problem, you can open Tencent PC Manager ---Antivirus - Full Antivirus - to perform a deep scan.

3. After checking and killing all viruses, immediately restart the electric vertical hall brain, conduct a safety physical examination, clear the redundant system cache files, and avoid secondary infection.

If you are not satisfied with my answer, you can continue to ask questions or give valuable comments, thank you.

You Lu Kai is good: It is recommended that you install the Rising antivirus v16 version and upgrade to the latest virus database, restart the computer and press the F8 key to select the safe mode, carry out a full virus scan and kill, and then accompany the call to use the Rising Security Helper to repair the computer, **Address:

If you suddenly cannot access the local area network, there are several possibilities.

First, it is the intrusion of the virus, sending a large amount of data, causing the network to be paralyzed, and can not access other hosts, when encountering this virus, it is best to unplug the network cable as soon as possible to prevent other machines in the LAN from being infected with the virus.

Second, it may be that you have inadvertently changed your IP address or gateway, and third, the working group may have changed.

In addition to the above problems, maybe it's a firewall problem, you just need to set up a firewall.

Suddenly unable to access the LAN Is it that there has been a sudden power outage in your LAN In the sudden power outage, it is possible that the working group in your LAN has been changed Or it is possible that the LAN has turned on the firewall The and the guest users have been turned off in the LAN The and the guest user has been turned off in the LAN The and the registry has been changed You take a closer look at it.

If it is possible that it is an ARP attack, try the ARP firewall.