Bitcoin immunity
in this global computer virus incident, mobile China also received a blackmail. Fortunately, the machine that received the email was a testing machine, which did not affect us. However, it's different for college students in the graation season. The thesis is locked, which is related to graation. So in the face of this outbreak of blackmail virus, how should we deal with it and what protective measures should we take<
first of all, let's understand the characteristics of this virus
the computer virus initiated by hackers will encrypt a large number of files on the system into files with. Onion suffix. After poisoning, they are required to pay bitcoin ransom to decrypt and recover the files, causing serious losses to personal data, and anti-virus software cannot decrypt these encrypted files. But we must not listen to the hacker's so-called "give money to decrypt" saying, because hackers do not necessarily keep their promises, in addition, bitcoin is expensive, and it is also a large number for ordinary users< Secondly, we need to pay attention to the background of the virus outbreak.
according to the domestic experts, according to the network security agencies, this is a virus attack event launched by lawless elements using the "eternal blue" leaked from NSA hacker's weapon library“ "Eternal blue" will scan windows machines with open 445 file sharing port, without any user operation. As long as the machine is turned on and connected to the Internet, criminals can plant blackmail software, remote control Trojan horse, virtual currency mining machine and other malicious programs in computers and servers
e to the previous outbreak of worms using port 445 in China, operators have blocked port 445 for indivial users, but the ecation network has no such restriction, and there are still a large number of machines exposing port 445. According to the statistics of relevant institutions, at present, more than 5000 machines in China are attacked by NSA "eternal blue" hacker weapons every day, and the ecation network is the hardest hit area
What are the coping methods
1. Close port 445, and you can search and query by yourself
2. At present, Microsoft has released a patch ms17-010 to fix the system vulnerability of "eternal blue" attack. You can install this patch for your computer as soon as possible
as for XP, 2003 and other Microsoft machines that no longer provide security updates, microblog professionals recommend using "NSA Arsenal immunity tool" to detect whether there are vulnerabilities in the system, and close the ports affected by the vulnerabilities, so as to avoid being attacked by blackmail software and other viruses
The blackmail virus wannacry is mainly spread by taking advantage of the dangerous vulnerability "eternal blue" leaked by NSA (National Security Agency). Microsoft released ms17-010 vulnerability patch to fix it earlier, but many users did not update the patch in time, so that a large number of computers were attacked by blackmail virus, The least affected system is windows 10, because the latest version of windows 10 1703 has integrated vulnerability patches and is completely immune to blackmail virus. However, it does not mean that win10 is 100% immune to blackmail attack. There are many versions of win10, and the old version will still be infected by virus
Microsoft emphasizes that windows 10 users are not the target of this malware attack. However, according to Microsoft's security announcement, only the latest Windows 10 1703 creators update creator update does not exist the vulnerability of this attack. The previous windows 10 RTM original version, November 1511 update and 1607 anniversary update still need to be patched, If there is no update patch, win10 will still be attacked by blackmail virus, so we must pay attention to update the vulnerability patch in time. Win10 click Start -- settings -- update and security -- windows update to execute system update
1. The battery is damaged. When the battery is damaged, it can't be turned on. At this time, as long as the battery is removed and replaced with external power supply, it can be used normally
2. If BIOS fails to refresh or is infected with virus, it is difficult to repair. Remove the BIOS and put it on a special device to write it again
3. There are many reasons for the problem of power supply board, such as fuse blow, control chip burn out, etc. because the chips of the chipset of power supply board are relatively fine, it is difficult to repair the chips, so many maintenance centers recommend replacing the power supply board with a new one
4. When files appear in the system, they can be solved by reloading the system.