Bitcoin virus caught

1.

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

2.

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

3. Wannacry virus is spread based on Windows system, and smartphone users will not be affected. To prevent viruses, please open the system control panel - system and security - install system patches. If you do not open the system patch function, please open and repair all vulnerabilities immediately. It is recommended to upgrade the system for systems below Windows 7. Thank you for your support and trust in Tencent housekeeper.

4. 1、 Prepare a U-disk or mobile hard disk. Before going to work on Monday, you can download 360 security guard [offline disaster relief version] under the safe network environment at home. 2. After arriving at the company, first unplug the network cable of the office computer, turn off the wireless network switch, and then turn on the computer. 3. Insert the prepared U-disk or mobile hard disk into the office computer, and install 360 security guard [offline disaster relief version]. 4 The NSA Arsenal immune tool of 360 security guard [offline disaster relief version] will run automatically, and detect whether there is a vulnerability in your computer. 5. Please wait patiently ring the process of repairing the vulnerability, which generally takes 3-5 minutes. After the repair is successful, you will be prompted by a pop-up window. Please [restart computer] so that the repair operation will take effect completely. 7、 After restarting the computer, you can run the NSA defense tool again through the desktop shortcut [blackmail virus relief] to ensure that your system has been repaired.

5. Generally, they won't go to jail. They are talents that the state will reuse

6. Install a computer manager on your computer and then open the toolbox to find the blackmail virus immunity tool
with this tool, your computer won't have to worry about the virus problem

7.

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 exchange

this 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 demand

in 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 countries

the 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

Zhiben society is a hard core learning society that listens to hard lessons, reads hard books and reads hard texts. Wechat search "benshe" (ID: benshe0-1) to learn more in-depth content

8. 1. You can check and kill first, and open Tencent computer Housekeeper - virus check and kill
2. If you are sure it is this, there is an immune tool in the housekeeper's toolbox, which needs to be operated manually

9. Accommodation: go to Guangzhou Rujia self-service apartment. You can get a discount for the first time to apply for a membership card. The environment is good and the transportation is super convenient. Downstairs is the station (there is a bus directly to Beijing Road), or you can go to the nearby subway station directly to Tianhe City (shopping paradise), or you can take the subway to the martyrs' cemetery (fashion front, the shopping mall that young people in Guangzhou must go to), The most fashionable things are there. If you really go to live, tell the contact person of the apartment that it was introced by the girl who has been to Yunnan for several months. Hehe, she may give you more discount or be more polite. Don't go to those hotels. They're not clean and safe<

eat and drink: this apartment is located in the east of beilongkou, Tianhe District, Guangzhou. There are many restaurants downstairs. Don't go to those so-called authentic fast food restaurants in Guangzhou, such as daxihao. There are many restaurants downstairs. It's recommended not to go to those so-called century old brands, such as Taiping shacaiji. Walk downstairs to Tianrun road for a few minutes, There are many authentic Cantonese restaurants, which are not expensive! There are too many restaurants in that area. They are not expensive and delicious; Or go to the east of Longkou to Shipai, which is the largest computer city in Guangzhou. There are many restaurants along the road, which are very good. Then go to Beijing road or fashion front, where there are many places to eat, but not many authentic Cantonese food<

play and shopping: Beijing Road Pedestrian Street, fashion front, shangxiajiuhe Zhuangyuanfang (take 102 from Beijing Road to shangxiajiuhe Zhuangyuanfang, pay attention to avoid the rush hour, otherwise it's crowded), the bus line can be inquired, I don't think it's necessary to buy a map, information can be found on the Internet. You can go to the site of Nanyue King's mausoleum. You don't need Zhongshan Memorial Hall. There's nothing to see. The martyrs' cemetery is just a park with some tombstones. You can have a look at Xiguan. Then you can go to Haizhu bridge to have a look in the daytime and at night. You can get there by subway. It's very convenient. If you like to sing K, it is recommended that you go to karaoke king. In the vicinity of Guangzhou computer city, it's about 15 minutes' walk from Longkou East. It's very convenient. It's only 35 yuan a month from 5:00 p.m. to 9:00 p.m. plus buffet. It's super cost-effective

if you want to look at the history, there are not many places in Guangzhou, but there are still a lot of places to play. In the past, it was enough for you to play for four days

note: when taking a bus, you must prepare change. The driver won't give you change, and try not to ask the driver where to get off, because the attitude of drivers in Guangzhou is very bad

I hope the above information is helpful to you< br />

10. The cost of myopic surgery ranges from three to four thousand yuan to twenty to thirty thousand yuan. It depends on what kind of surgery to choose. It is suggested that the charges of the local hospital should prevail

in addition, considering surgery, we need to know that myopia surgery has certain prerequisite requirements, and can only be done if it meets the requirements of surgery
the requirements of myopia surgery:
1. The age of myopia must be over 18 years old. Myopia can be treated with medicine. It is generally recommended to take lejing eyesight nutrient, two packs a day. If you insist on taking it for a period of time, the degree of myopia will be reced, and the eyesight will be improved. You can not have surgery in althood
2. The myopia degree is between 100-1500 degrees, the astigmatism degree is within 400 degrees, and the vision is stable for more than two years
3. There is no other ophthalmic disease, which does not affect the postoperative recovery< The thickness of cornea is thick enough
after preoperative examination, only those meeting the operation requirements can be operated.