Announcement on bitcoin virus

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. From May 12, bitcoin blackmail computer virus broke out all over the world. At present, 16 hospitals across the UK have been attacked on a large scale, and many Chinese universities have been recruited. Hackers blackmail users for ransom by locking computer files, and only charge bitcoin

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

3.

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

5. 1. Install a computer manager on the computer
2, and then open the virus check and kill to check and kill the computer virus
3, and then open the toolbox to have a document guardian to decrypt the file

6. blockchain technology is best known in the financial sector: its origins are integrated with cryptocurrencies that rely on blockchain transparency and unparalleled security to accelerate their success. In essence, through a decentralized distributed digital ledger, the blockchain can record any valuable transaction in the whole computer system, so that no record can be changed quietly without the consensus of the whole computer system
in the financial field, blockchain has been explored and actively used for financial transactions and even contract management. For the supply chain, the benefits are not limited to just keeping accurate records: the blockchain fundamentally reces the time spent on paperwork and authorization. At present, most of the proct or material delivery delays are e to these two points. However, in the blockchain, it does not take time to verify the previous records, only a digital signature is needed to ensure the accuracy and authenticity of digital paper records< At present, consumers have to rely on certificates to verify the authenticity of gemstones. A piece of paper can be easily changed. When many diamond owners value their diamonds with the intention of selling them, they will find that their perfect diamonds are only a little more valuable than glass or smaller diamonds
with the application of blockchain, diamonds can be used as raw stones for unique barcode coding when they are just mined from the vegetable market. While maintaining the integrity of their information, changes made and records handled, they can circulate in the whole supply chain. Throughout the supply chain, authenticity can be verified and there are no unauthorized changes, so the end buyer can track the origin of the diamond (in fact, any other material used to make the final proct) and its entire circulation
similarly, through the blockchain, we can trace the origin, service and ownership history of used cars, so as to rece service fraud (such as the place where the odometer is recalibrated) and the number of stolen vehicles in circulation, and also hope that these instries will be completely terminated
transparency and security
Security and transparency are not usually terms that go hand in hand, but they do on blockchains. As mentioned above, the security of blockchain does not allow any form of unauthorized changes and ensures the authenticity of data. By storing the same "block" information that needs to be collectively approved on its network, the blockchain can not be controlled by any single entity, and there will be no single point of failure, which makes it the most secure platform so far
blockchain can provide transparency, however, its programming mode only allows authorized entities to access information related to their specific interests. For example, buyers may be able to view transaction history, but will be denied access to sensitive or personal information, such as addresses
from a compliance perspective, this helps to ensure that all parties comply with laws, such as the EU's general data protection regulation (gdpr) and South Africa's Personal Information Protection Act (Popi), while still being able to share or access information related to their own parts of the supply chain
there are many application examples of blockchain technology, and supply chain is one of them. However, e to the complexity and number of parties involved in the supply chain, blockchain is considered to be the perfect solution to all the challenges so far, including security, delay and authenticity.

7.

Recently, some domestic college students reported that their computers were attacked by viruses and their documents were encrypted. The attacker claimed to pay bitcoin to unlock. It is reported that the virus is nationwide, suspected to spread through the campus network, very fast. At present, Hezhou University, Guilin University of Electronic Science and technology, Guilin Institute of aerospace instry and universities in Guangxi are affected. In addition, some netizens reported that Dalian Maritime University and Shandong University were also attacked by the virus

up to now, more than 6500 computers in China have been invaded by the virus. Bitcoin is a kind of network virtual currency, but its exchange rate with RMB is surprisingly high, 300 bitcoin is about 3 million RMB

Kevin, a hacker on Weibo, has taught five temporary solutions:

1. Don't give money. The ransom is expensive and may not be recovered after it is paid

2. The non poisoned computer quickly backed up the data for many times. If it has been poisoned, lower the hard disk before reloading the system, and then install the operating system

3. Install anti blackmail protection tools, but it only works before the virus invades, but it can't do anything for the computer that has been infected with the virus, so it is still necessary to do a good job in the backup of important documents. Do not visit the website, do not open suspicious mail and files

4, turn off the computer, including TCP and UDP protocol 135 and 445 ports

5, but also do not understand, the network pinch

8. Why did bitcoin become the "accomplice" of hackers in this virus attack
original title: why bitcoin is the ransom for blackmail virus? One bitcoin for 10000 yuan, but do you dare to vote
in recent days, the "blackmail virus" has swept the world, and the gang leader (ID: banglicai) regrets it. Why don't you hoard more bitcoin...
to get back to the point, today, the gang leader will talk to you about the existence of bitcoin? Why does blackmail virus choose bitcoin as ransom? Bitcoin so hot, dare to vote
the virus in Senior Students' thesis costs 300 US dollars per person
bitcoin virus, a virus sweeping the world, suddenly appeared on the screen last night. It happened that an intern of the gang leader (ID: banglicai) came back to school busy with his thesis and became one of the tragic witnesses of history
according to interns, many campus networks in Zhejiang have been attacked. Among them, bitcoin, as one of the new payment means, is used by hackers as a payment tool for blackmail
in the page she showed reporters, the hacker said that he only accepted bitcoin as a means of payment, and asked to pay the equivalent of $300 bitcoin to the provided payment address. If he did not pay it within a period of time, it would double
International reports since then show that the situation is far from as simple as the campus network. BBC reported that in addition to China, 74 countries including Britain, the United States, Russia, Italy and so on have suffered similar attacks
today, there is further news that some domestic gas stations of PetroChina have been cut off from the network, which is suspected to have suffered a similar attack, but the official said it is still in the process of confirmation
the microblog certified as "Information Technology College of Guizhou University of Electronic Science and technology" said that at present, Microsoft has released an update patch to make up for the corresponding loopholes
it is reported that after discovering the hacker, the college counselors mentioned above have reminded the students to unplug the network cable, disconnect the campus network link, and then back up the important data information to prevent loss
why bitcoin for ransom? Anonymity, difficulty in supervision and soaring prices
in this attack, hackers pointed out that bitcoin was required for remittance. Why bitcoin
bitcoin is a "digital currency" based on blockchain technology. In 2013, the central bank made it clear that bitcoin, as a specific virtual commodity, does not have the same legal status as currency and cannot and should not be used as currency in the market
from the perspective of China, there are three trading websites of bitcoin platform, namely "fire coin", "coin bank" and "bitcoin China", which account for about 95% of the domestic market. However, the central bank publicly pointed out last year that the three companies had violated the rules and carried out rectification
in this virus attack, why did bitcoin become the "accomplice" of hackers
many analysts point to the characteristics of bitcoin, anonymity and difficulty in supervision. Because bitcoin has the characteristics of convenience, anonymity and fast global transfer, it is favored by criminal organizations
in the bitcoin network, the owner's identity only appears in the form of a set of encrypted computer code. The network only records the address from which a bitcoin is g up and how it is transferred, but the identity of the owners of these addresses can not be verified. Related transactions can easily be invisible from the perspective of government regulation, and it is difficult for regulators to track or intercept
compared with other ways, using bitcoin to remit money is much more "secret". For normal cross-border remittances, they will be reviewed by various exchange control agencies, and the transaction records will be recorded by banks and other parties. After the transaction exceeds a certain amount, it is necessary to report to the relevant departments to prevent money laundering and other violations
however, if you trade in bitcoin, you can enter a digital address like "" directly, click the mouse a few times, and wait for confirmation of the transaction to complete the transaction (at present, the withdrawal of bitcoin has been suspended in China)
at the same time, the recent sharp rise of bitcoin is also the reason why hackers like it. Recently, driven by the rection of mass proction and the favorable effect of bitcoin ETF, bitcoin once hit a new high
the price soared, once exceeding RMB 10000 to one bitcoin

in January and February this year, bitcoin encountered a regulatory storm
on January 5 this year, the highest price of bitcoin was close to 9000 yuan. Later, e to the coming of the regulatory storm, the price quickly fell to 7100 yuan, a drop of nearly 20%
after the regulatory storm in January and February, bitcoin experienced another wave of sluggish market in March: it fell from about 8000 to less than 7000. However, since then, bitcoin ushered in a wave of soaring prices
according to the currency bank's market, the "bull market" of bitcoin started in April. From the price of one bitcoin to 7000 yuan in early April, it rocketed through the threshold of 10000 yuan to one bitcoin
on May 10, the market software showed that the price of bitcoin successfully broke through the 10000 mark, with the highest price rising to 10245
however, since February this year, when the domestic regulatory authorities asked to suspend the withdrawal of bitcoin, there has been a "price gap" between the domestic and foreign bitcoin prices: the price of bitcoin in foreign countries was as high as 1779 US dollars / piece, equivalent to about 12275 yuan / piece, with a gap of about 2000 yuan compared with that in China
behind the sharp rise in price, there is a sharp drop in trading volume. According to public data, the trading volume of fire coin on May 9 was less than 15000 pieces, 40% less than the previous peak day, and 0.3% of the single day trading volume when it reached a new high on January 5 at the beginning of the year
do you dare to vote? Bitcoin market is full of risks
many investors have paid close attention to the rise of bitcoin, hoping to get a piece of it. So is bitcoin a good investment proct? The answer is: it's very risky
judging from the current simple transaction, bitcoin faces a certain callback risk. Xiao Lei, chief researcher of gold wallet, pointed out that bitcoin has a certain callback risk e to excessive short-term price rise in the future. However, he also analyzed that concepts such as bitcoin ETF are beneficial to bitcoin's rise
in addition, the current bitcoin market is far from as large as the scale of a shares, and investors are worried that "if I participate in it, will I be led by the nose by the makers?" This worry is reasonable. ID: banglicai once found out in bitcoin's communication group that every once in a while, the official customer service of a certain platform would publish relevant advertisements in the group - promoting short selling or long selling. In the view of instry insiders, short and long will undoubtedly aggravate the sharp rise and fall of bitcoin, which is also easier to be controlled by makers
in addition, there is another risk for domestic trading platforms, that is, once the website is closed, bitcoin in all transactions can be embezzled, and there is no place for players to pursue it
in addition, the biggest risk of bitcoin lies in vague regulation, which may plummet in the regulatory policy at any time. For example, the regulation in January and February of this year caused bitcoin to fall sharply, and investors in bitcoin were hurt
regulation does not explicitly support the development of bitcoin. Reread the old article. In 2013, the notice on preventing bitcoin risks issued by five ministries and commissions clearly pointed out that bitcoin has no legal status as a currency
although bitcoin is known as "currency", it is not a real currency because it is not issued by the monetary authority and has no monetary attributes such as legal compensation and compulsion. In nature, bitcoin should be a specific virtual commodity, which does not have the same legal status as currency, and can not and should not be used as currency in the market
this regulatory document also points out that at that time, some domestic institutions and indivials took the opportunity to speculate on bitcoin and its related procts. " In addition, it also indicates that bitcoin has the risk of money laundering
capacity expansion is also a focus in the instry“ Bitcoin has a fatal weakness. " Zhu Min, former vice governor of the central bank and former president of the IMF, once told the gang leader (ID: banglicai), "its scale is very small. If its scale expands, can its security and efficiency be implemented? But it needs to be expanded so that we can know how well we are doing. It doesn't mean that everything can be copied without limitation. Its technology is totally different. "
according to this, although it is possible to make a big profit by investing in bitcoin, it is also easy to encounter risks and suffer heavy losses
investor story:
the guild leader (ID: banglicai) interviewed several bitcoin players, each with his own story
old L: he made a profit of 60000 yuan and was once caught by supervision
"7396, 7359, 8895, yeah!" On January 5 this year, looking at the constantly beating real-time price of bitcoin on the computer screen, Lao l cheered with excitement. His shaking hands in QQ group hit "rich!" The news, several bitcoin players netizens have issued a grin
in the cheers of QQ group, old l kept sober. In his view, such a substantial increase will inevitably attract the attention of relevant departments. But what I didn't expect was that the regulators would act so quickly this time
on January 5, bitcoin broke through an all-time high. The highest price was close to 9000 yuan, and then dived quickly“ I thought I could make a lot of money, but I didn't expect the regulators to intervene so soon. " Young, he likes to call himself old L, which means "leader"
on January 6, the central bank announced that it had made an appointment with the person in charge of the bitcoin platform. After that, the bitcoin platform was checked on the spot, and the bitcoin price went down
in fact, it's not the first time that bitcoin's price has gone up and down. Old L is the one who has experienced such ups and downs
among domestic bitcoin players, he is not the first one to enter the instry. However, many years of working experience in a financial company made him quite insightful about bitcoin, and many of his friends came into the circle under his influence.
in May 2013, when he happened to see the report of bitcoin in CCTV's economic half an hour, old L, with a keen sense of smell, began to pay attention to this new thing. During that time, he would collect data and price trend of bitcoin on the Internet every day, and cash all the 150000 yuan originally used for stock speculation, so as to buy bitcoin at any time
the time is coming in 2014. Affected by the central bank's policies, bitcoin prices continued to decline since the end of 2013, and the decline continued until the second quarter of 2014. In his opinion, bitcoin has dropped to more than 2000 yuan, and there will be no further sharp decline
"at that time, it was quite cheap, about 2700 yuan." Old l recalled that two months later, the price of bitcoin began to pick up and graally rose to 3996 yuan. Lao l successfully made a profit of more than 60000 yuan: there is nothing wrong with investing in bitcoin
old L is rich! The news spread quickly among the circle of friends. Soon, a lot of friends came, hoping that old l could teach experience and make money together by speculation in bitcoin
for a while, Lao l became a wealth leader in his circle of friends. He has set up a QQ group, which releases the latest news of bitcoin every day, as well as professional vocabulary explanations such as virtual currency, blockchain and constant total number, so that friends can quickly participate
but the good times are not long, and bitcoin is declining again. By November 2014, the price had fallen back to 2066 yuan. Old L and his friends are both in trouble
the aura of authority began to fade. The appearance of quality in QQ group

9.

Around 20:00 on May 12, 2017, bitcoin blackmail computer virus broke out in the world, which is a global blackmail software infection event

5.360 security guard has provided "NSA Arsenal immunization tool", which can be downloaded and installed