Prevent Windows blue screen attacks through firewalls

  

Blue screen system failure I believe that everyone must have encountered, basically the situation is this: Windows series operating system crashes, usually shows a blue screen with some complicated symbols and numbers . Once you encounter this problem, basically many users don't know how to solve it. The blue screen attack is actually exploiting the kernel defect of the Windows operating system, or sending a large number of illegal format data packets to the attacked machine, causing the network layer of the Windows operating system to be damaged, causing a blue screen of death.

At present, the most common attack methods are:

l.NetBIOS attack: Send a data format illegal packet to port 139 of the machine using Windows 9x operating system. Typical attack tools are WINNUK.

2.IGMP Attack: Send IGMP packets of large length and number to machines using Windows 9x operating system. Typical attack tools are DOOM.

3.ICMP attacks : Sends a large number of ICMP packets of varying types to machines that use the Windows 9x operating system.

For the above attacks, we can turn off NetBIOS, IGMP, and ICMP in the security level setting of the firewall. Closing these protocols will not affect the use of the Internet.

The problem of blue screen is very complicated. There are many reasons for this problem, but we don't understand if we find out the reason. If we eliminate it, it is ok to use the firewall at this time, and it may be solved.

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