Real time map of 512 bitcoin virus
Yesterday, I went to the electronic reading room. Not long after I plugged in the USB flash drive, the teacher suddenly asked everyone to unplug the USB flash drive. Some students found that all the files in the USB flash drive could not be opened, and there were two more documents asking for money
so everyone rushed to check, as long as the U disk inserted in the school computer were poisoned, large-scale computer poisoning occurred in the evening
a lot of people's information and graation thesis are in the computer. I really feel that hacker's behavior is disgusting. For the sake of money, regardless of the future of students, teachers' lifelong scientific research achievements...
hope to catch criminals as soon as possible and give them severe punishment by law
this virus will scan windows devices with open 445 file sharing port. As long as the user's device is on the Internet, hackers can implant blackmail software, remote control Trojan horse, virtual currency mining machine and other malicious programs in computers and servers
some security researchers point out that this large-scale network attack seems to be deployed through a worm application, and wannacry can spread among computers. What's more terrible is that unlike most malicious programs, this program can replicate and spread on its own in the network, and most of the current viruses still need to rely on the successful users to spread by cheating them to click the attachment with the attack code
the attack has affected 99 countries and as many as 75000 computers, but because the virus uses anonymous network and bitcoin anonymous transaction to obtain ransom, it is very difficult to track and locate the originator of the virus
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 virus in the "bitcoin virus" incident is known as "ransomware". By encrypting the files in the victim's computer, you can't open them completely to ask for ransom. This is a virus attack launched by lawless elements by using "eternal blue" leaked from NSA hacker's weapon library. It does not need any operation of users. As long as it is turned on and connected to the Internet, lawless elements can implant blackmail software into computers and servers
What's more terrible is that this is just the beginning. Now this blackmail virus has spread to all over the world, including many colleges and universities in China. You can see many students on the Internet showing pictures of their computers being attacked. I have to say that hackers are really well intentioned, even in simplified Chinese
Hayek studied business cycle theory and monetary theory with his teacher Mises early in his academic career. In 1931, he published "price and proction". Because the proposition in the book is contrary to Keynes's "on money" published a year ago, they launched a debate
The most typical example of
is gold and silver. For a long time, gold and silver were the common currency in the world. The hard currency of trade in all countries did not belong to any one country. Even in the era of gold standard, the state issues legal paper money, but legal paper money is still anchored by the free competition of gold. Gold circulates freely in the world and is more rigid than paper money
There are at least three reasons that lead to the existence of a large number of competitive currencies:one is the existence of multi-level market, because the metal currency is not easy to cut, super zero denomination currency and silver currency coexist
In the 18th and 19th centuries, there were long-standing high-ranking gold coins in Bangladesh, such as mulu, Sika rupee, middle akut rupee, and low ranking copper coins and BEIBI coins. Because silver coins are not easy to cut, a large number of shell coins with zero denomination are needed in remote areas and small exchangethis situation existed for a long time in ancient China, and the copper coin standard lasted for more than a thousand years in ancient China, but the iron coin also circulated for a long time (such as the Song Dynasty), and the face value of iron coin was smaller than that of copper coin. In the Qing Dynasty, with the discovery of Potosi silver mine in South America, a large number of silver coins flowed into China. Around 1730, the use of silver and money accounted for half of the transactions. Compared with copper coin, silver coin has a larger denomination, which is convenient for large transaction and solves the problem that copper coin is not easy to transport
The second is seasonal deflation, and private coins balance market demandin the agricultural era, the transaction volume of agricultural procts accounted for a large proportion, and a large amount of money was used for agricultural procts transaction. However, agricultural procts have obvious seasonality, and the transportation and supply of metal money is extremely inconvenient, so the problem of insufficient money often appears in the harvest season. In his book, Professor Kuroda cites the example of Quanzhou, Fujian Province, China in 1606. The original inventory management money could not meet the rice trade, so the private money was imported to meet the market demand to balance supply and demand. This kind of situation happens every year in China. Every year, it is the peak of money demand near the Spring Festival. The central bank will release part of liquidity to balance supply and demand
Thirdly, metal currency is a kind of deflation currency, which circulates a variety of currencies in regional and specific areas In his book, Professor Kuroda cites Nadina Jebel's case, "the transactions of grains such as rice are used for sonoto silver coins, the transactions of oils and fats are only used for French akote rupees or British akote rupees, and the transactions of flax are only used for French akote rupees." At the beginning of the 20th century, in China, all kinds of silver coins were circulated in Jiujiang, Jiangxi Province. Mexican silver coins were used for the export of tea and porcelain procts in Shanghai, and silver coins issued locally in Jiangsu Province were used for the trade of local markets such as tobacco or beans. There are also silver bills used in Shanxi business circle, and various copper coins used in the coin community around the China Sea, including Japan, North Korea, Southeast Asia and other countriesthe problems of metal currency in multi-level market, seasonal deflation, regionality and specific fields do not exist in today's credit currency era. Many of the competitive currencies listed by Professor Kuroda also disappeared in the globalization of silver coins and the legal tender system
therefore, the monetary pattern of countries in the world we see today is one country one currency, which is legally issued by the state monopoly
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many countries suffered from network attacks
< / OL >
on May 12, many countries around the world suffered from large-scale network attacks. After the computers of the attackers were locked, they were required to pay bitcoin to unlock. The spread of malware began in the UK. At present, no hacker organization has claimed the attack
According to a report released by Kaspersky laboratory, a Russian network security enterprise, on the 12th, it was found that 74 countries and regions around the world had suffered the attack, and the actual scope may be wider. The agency said that in the 20 most attacked countries and regions, Russia was far more vulnerable than other victims, and Chinese mainland ranked fifth. p>Open Tencent computer Housekeeper - virus detection and killing
It depends
The effect of
binary compression is to reset the cooling time of e immediately after the e barrier disappears. However, e lasts longer than cooling, which is usually a useless effect
however, if the condensate is opened, the barrier will automatically break and strengthen the magic. Because ordinary energy only increases by 60% of energy, we have to turn it on only when there is an obstacle. After opening, the barrier is broken, and the effect of 2 lives is triggered. The E power cools down immediately, and you can hit e again. You know that the damage of E power can't be low
this extra ability makes the clotting burst so terrible
if you have a complete life solidification, you will get a star immediately after casting a big action, and you will be able to get a heavy hit again. The whole life concentration method is e + thumb + Q + thumb + E
if you don't have two lives, it's not impossible to play. Condensation a can get star axons, which will enhance the critical strike force, so condensation a will also have a good output. This output will not be limited by CD like a skill, just like a remote fortress, so condensation is called ADC
the condensate can save up to 3 axons through a, and the damage of a is very low, so when you have 3 axons, you should find a chance to fight, not to fight a again
{rrrrrrr}
extended data:
weapon selection:
four styles original code ≈ & gt; The sun and the moon are in the box, Zhao Xin. If not, build a universal map
equipment: pre war fighter 2 + Gladiator / soldier / heart of Walker 2
later stage: Gladiator 2 + group 2
hourglass causes damage, water cup causes rock, head ring causes fatal blow (explosion damage if violence overflows)
team match:
1. Pure solitary flow: two rocks and two fires, I use Ningguang + Maid + thumb up brother + amber
2. Change some function roles according to the actual situation
according to the details of the agreement reached by the two banks, Barclays Bank will buy ABN AMRO's shares at a price of $49.25 per share, which is slightly lower than the closing price of ABN AMRO's shares at $49.38 last Friday, but still significantly higher than ABN AMRO's share price before the two banks began merger negotiations. Meanwhile, ABN AMRO will sell its U.S. branch, LaSalle bank, to Bank of America for $21 billion<
a joint statement issued by the two banks said that the new bank after the merger will use the name "Barclays" and follow the corporate management structure of the UK, but will be headquartered in Amsterdam, the Netherlands. John Waley, chief executive of the bank, will be the chief executive of the new bank
the two banks expect the merger to be completed in the fourth quarter of this year if all goes well. The new bank will cut 12800 of its current 217000 employees. The statement said the new bank is expected to cut costs by $4.8 billion a year by 2010
last year, ABN AMRO's net profit was US $6.42 billion, up 7.7% year on year. The bank's net profit was US $9.14 billion, up about 33% year on year.