How to attack small virtual currency websites

1.

Here are some personal experiences in the exchange

(1) the coin search website has the advantages of low service charge, quick withdrawal and multiple currencies. It supports a variety of well-known virtual currency transactions and is convenient to purchase usdt. It has app and high security

(2) kucoin overseas version (coin win background) has smooth interface operation, and the speed of coin withdrawal is not bad, but most of them are junk ICO coins, many names have not been heard of, such as app

(3) China bitcoin overseas version EXX (slow coin withdrawal, kengdai) gambling platform, fixed-point blasting futures pop you up, there seems to be a problem with cash withdrawal, no app

(4) fire coin overseas version, Collude with OK, dozens of junk money a week, no bottom line, many small problems. Support C2C transactions, there are app

(5) okcoin overseas version, this does not say, OK life black, although support C2C transactions, but bottomless line shelf circle coins, flicker leeks, C2C transactions can not be withdrawn, embezzle the user's assets after the decimal point of tens of millions, careful into

(6) BTCC overseas version, support us dollar UnionPay direct charge, but the handling charge is high, it is relatively low-key in China, The experience of the transaction interface is very poor

(7) the overseas version of cloud coin has few currencies and many problems, so it's all warriors

(8) currency security is currently the largest exchange in China, with the most complete currency and many activities. It doesn't card you to withdraw and recharge money. Although there are so many junk money in ICO, it doesn't have as many problems as hot money OK platform. It can be said that it is the best exchange in China. It has app, needs to turn Q, and mobile client doesn't need to turn Q

(9) Yuanbao overseas version has Canadian financial license, legal operation, insufficient depth, small amount of currency, small transaction volume and insufficient UI beautification

(10) in the bitage, the overseas version takes a very long time to review, and it takes you a long time to pick up the coin and issue the coin. The miner's fee used to be a little higher, but now it's just a little higher. 0.5% for recharge, 1% for withdrawal, and the highest withdrawal fee in the whole universe. The garbage made by the K-line chart can't hold on to the ICO coin. At present, this platform can't stand the temptation of interests, and the card is only issued half a day, The trading volume is a little less. At present, I have abandoned this platform

(11) the overseas version of China's bitcoin has just been opened for trading, and C2C trading has a unique qash trading area. There are many small problems, so be careful to enter

2. Don't be fooled. China does not recognize the legitimacy of any virtual currency.

3.

1、 Common analysis of virtual currency (1) bitcoin solution is designed and created by Japanese programmer Nakamoto (alias) in 2009, and it is the most successful and controversial network currency at present. Bitcoin scheme is based on P2P network architecture, which has been operating in the world, and can be used for all kinds of virtual and real goods and services transactions

In theory, if the existence of network currency affects the demand for the central bank's liabilities, and then interferes with the central bank's open market operation, it will have an impact on a country's monetary policy and price stability. However, from a practical point of view, the premise of network currency affecting price stability includes the following three aspects:

(1) from the analysis of the impact on the amount of money, although it is difficult to analyze the extent to which the network currency scheme creates money in the case of lack of information

However,
however, most Internet money systems operate in prepaid mode, that is, issuing Internet money when the real money is exchanged in and withdrawing money when the real money is exchanged out. In the famous network currency scheme, the supply of money is stable and the supply is small, but we still need to be vigilant whether it can ensure that the money supply will maintain a stable level in the long run, and the impact of the change of exchange rate between network currency and real currency

(2) from the analysis of the impact on the speed of money circulation, the use of cash and money statistics, the impact of the technological innovation brought by the network currency scheme on the speed of money circulation is not clear

as an Internet instry, it largely depends on the number of active internet currency scheme users. If the network currency is widely accepted, it will have a substitution effect on the real currency of the central bank, thus recing the use of cash in transactions
in this case, the scale of the central bank's balance sheet will be reced, and its ability to influence short-term interest rates will also be weakened. The central bank will need to fight against risks through ways such as setting minimum reserves for cyber currencies. Substitution effect will aggravate the difficulty of monetary statistics and affect the relationship between monetary statistics and inflation, which is not concive to the realization of long-term price stability. In addition, the issuance of network currency outside the central bank and the expansion of virtual credit will have an impact on the central bank's interest rate decision in the economy and weaken the central bank's monetary control

(3) from the analysis of the interaction between network currency and real economy, network currency can act as a real commodity trading medium and have an impact on real GDP

The influence of network money on real money supply depends on two aspects: one is the substitution effect of virtual economy on real economy; the other is the substitution effect of virtual economy on real economy; The second is the crowding out effect of Internet money on real money, that is, with the increase of the total amount of Internet money, the amount of cash held by the public in real life decreases, resulting in the decrease of cash / deposit ratio and the increase of money multiplier. In reality, the network virtual currency scheme will not affect the price stability at this stage, and the money flow speed will not be significantly affected in the short and medium term. However, the interaction between network currency and real economy deserves attention

(2) financial stability risk when the virtual currency scheme operates outside the banking system, the most important factor of financial instability lies in its connection with the real economy, namely exchange rate and exchange market. Obviously, the closed network currency scheme and the one-way flow network currency scheme are not affected, so we should focus on the two-way flow network currency scheme. The value of two-way network currency depends on the level of money supply and demand in the exchange market. A big difference between network currency and real currency is that the network currency scheme is not based on the country or currency region, and the influence of virtual economy intensity, trade or proction capacity on its exchange rate is limited. The price of virtual money and its fluctuation depend on five factors:

(1) money supply and other actions taken by currency issuers. For example: to achieve a fixed or semi fixed exchange rate by intervening in the market

(2) the network currency scheme shows network externality, and its monetary value depends on the number of users and merchants. As the number of consumers and businesses increases, their monetary value will increase accordingly. In addition, the exchange rate of network currency with small transaction volume fluctuates more

(3) the virtual community with clear and transparent policies and advanced security measures is easier to boost confidence and the currency is stronger

(4) the reputation of network currency issuers in fulfilling their commitments. There is no "lender of last resort" in the virtual community, and the trust gained by the issuer is crucial to the exchange rate of internet currency

(5)
speculation on the future value of Internet money and cyber attacks on virtual communities. Due to the immaturity of the system, low trading, speculative activities and network attacks, the two-way network currency scheme is inherently unstable
qualitative. At present, the trading volume of these network currencies is small and the correlation with the real economy is low, so the stability of the financial system will not be affected. However, if Internet money becomes a substitute for traditional money in the future, it will bring instability to the financial system and even distort the relative prices of goods and services. The impact of network currency system on the financial system largely depends on the number of active users and the number of merchants who are willing to accept virtual currency for real transactions. In addition, virtual currency has only exchange value and no use value. Generally, network currency is not based on assets with intrinsic value and is not supported by central bank credit. At present, these network monetary systems are not allowed to lend
or borrow funds, so it can not pose a threat to the stability of the financial system, but we should pay close attention to its development. If there is any change in the future, it will undoubtedly have an impact on the financial system

(3) stability risk of payment system

in a specific virtual community, virtual currency payment activities have evolved into a "real" payment system, facing typical risks related to the payment system: credit risk, liquidity risk, operational risk and legal risk. The nature, scale and ration of these risks are largely determined by the design of the system or the degree of lack of liquidity, so it is difficult for the network virtual currency scheme to avoid or control these risks. According to the core principles of payment system (CP) issued by the bank for International Settlements (BIS), the network virtual currency scheme does not conform to most of the contents of CP, and does not belong to the systemically important payment system. Therefore, it will not cause
or transmit shocks in the global financial system. At present, there is no systematic risk in the network currency system outside these virtual communities

2. Lack of corresponding supervision and protection mechanism

in the real economy, the central bank plays the role of lender of last resort and has no default risk, so it can take actions in the case of payment crisis or unpredictable liquidity shortage to avoid chain reaction. However, in the network virtual currency scheme
it is impossible to use network currency as settlement asset. Because network currency simply depends on the credibility of the issuer, it can not be widely accepted as a means of payment, so network currency can not be regarded as a safe currency. In addition, commercial banks are required to accept prudential supervision, which reces the possibility of default, and the security of money in commercial bank accounts is higher than that of network currency. A fundamental risk of network currency is that the settlement institution of network currency scheme is not subject to any supervision, no institution is responsible for its behavior, and there is no investor / depositor protection mechanism, which causes the user to bear all the risks

(4) risk of absence of supervision generally speaking, supervision lags behind the development of science and technology. The network virtual currency program was established in the late 1990s, but it was not until 2006 that some government agencies in the United States began to analyze these programs. Due to the lack of
supervision and the anonymity, invisibility and difficulty in tracking of its transactions, the network virtual currency scheme is very easy to be used by terrorist activities, fraud, money laundering and other illegal activities. At present, many government departments in many countries are considering whether to recognize or
legalize these virtual schemes and bring them into the scope of supervision, so as to support the innovation of currency and payment forms, protect the rights and interests of consumers and financial stability, and inhibit the use of virtual currency schemes to engage in criminal activities
at present, the uncertainty of the legal status of the virtual currency scheme may also bring challenges to the government authorities

(5) reputation risk of monetary authority the reputation of Monetary Authority (central bank) is the key factor to determine the effectiveness of monetary policy. The public's trust in fiat money is closely related to the image of the central bank, which pays close attention to its reputation. The ECB defines reputation risk as the risk of deterioration of reputation, credit or public image. As the network currency scheme is related to money and payment, it is generally believed that it belongs to the responsibility of the central bank, so we should be alert to the reputation risk it may bring to the central bank. However, in the case of small scale, the impact of the failure of the network currency scheme is limited, but its high volatility and instability also aggravate the possibility of failure and attract extensive media coverage. If the network currency is allowed to develop continuously without
regulation, the central bank may be considered as dereliction of ty and affect its reputation

(6) the risk of investors' loss
for exchange value, the public has a higher recognition of the investment value of network virtual currency, and it is investment based transactions that accelerate the formation of virtual currency market. Like other investment markets, participants in virtual money market will also face potential losses caused by market risk, credit risk and policy risk. Take bitcoin as an example: from 2009 to early 2010, bitcoin was worthless; In the summer of 2010, bitcoin trading began to enter the golden
period. As the supply was far less than the demand, the value of online trading began to rise. In early November, bitcoin was silent at 29 cents for many days, and then jumped to 36 cents; In February 2011, bitcoin continued to appreciate, and its exchange rate with us dollar
reached 1:1; In 2013, the price of bitcoin achieved a "Big Bang" growth, and hit US $1242 on November 29, 2013, surpassing the gold price of US $1241.98/ounce in the same period. Fierce price fluctuations make market participants face huge speculative risks. Unlike mature capital markets such as stocks and bonds, the depth of bitcoin market is insufficient, and it is mainly held in the hands of large investors with low degree of diversification. Bitcoin price is easily affected by large investors' buying and selling behavior, and also easily manipulated by speculators. At the same time, different countries have different attitudes towards bitcoin, Germany, the United States and other countries hold an open and supportive attitude, and Thailand, Brazil and other countries regard bitcoin related activities
as illegal. Every country's attitude and measures will have a significant impact on the price of bitcoin, especially in the short term

virtual currency is always inferior to real currency< br />

4.

It's not illegal

For example,

1. the virtual currency represented by bitcoin is legal in China, which is defined as a special Internet commodity, and people can buy and sell freely at their own risk

2. but it is illegal to carry out pyramid schemes under the guise of bitcoin. Now to create a virtual currency trading platform, we must record the website and implement real name authentication for users

3. bitcoin is legal in most countries around the world, except that some small countries explicitly prohibit bitcoin

< / OL >


since 2003, the more popular virtual currencies are bitcoin, Laite coin, Fuyuan coin, doggy coin, Diablo coin, reborn coin and so on

5. Freundlich adsorption equation can be applied to both monolayer adsorption and heterogeneous surface adsorption. Freundlich adsorption equation, as an empirical adsorption isotherm of heterogeneous surface, can well describe the adsorption mechanism of heterogeneous surface, and is more suitable for low concentration adsorption. It can well explain the experimental results in a wider concentration range. However, the disadvantage of Freundlich adsorption equation is that it can not get a maximum adsorption capacity and estimate the adsorption beyond the concentration range of parameters

6. 1. Install a computer manager
2, and then use the computer manager toolbox to fix the vulnerability
3. Just use this tool to fix the vulnerability

7. It depends on your preference. You can choose the seeds according to the terrain you like<
the following is a list of the seeds of the mobile version (only for mobile version):
10000 has a large natural door

1361375378 this picture has a big mountain up and down, which is very like an iron felt

0748, which is very flat and suitable for building

the terrain near the birth point of HK is super wonderful, For example, the Feikong island made of sand...

paopaokakadingche mountain is very high, with many canyons and magmatic water. The most important thing is that there is a super high mountain at the boundary of the map, which has two super large cavities

1379591983 Feikong Island seeds

mboco, super many arches and waterfalls

8. Unknown_Error

9. Unknown_Error

10. Whether it is small and medium-sized enterprise website or large enterprise website will face the risk of being attacked, if not a professional programmer maintenance, the website will often appear a lot of problems, page open slowly, delay, can't open or even crash, so the loss of a lot of customers. However, in the face of website attacks, we are not at a loss to do anything about it. The attack on the website just shows that there are security loopholes in the website. As long as we check and repair the loopholes and take precautions, we can maintain the normal operation of the website. The reason why there are loopholes in the website is that new loopholes are constantly found in the computer system or website program, and not very professional programmers neglect to guard against them, which brings opportunities to some lawbreakers. To this end, website operation and maintenance is not a simple thing, need the programmer's professional technology, management habits, sense of responsibility is closely related
common forms of website attacks:
(1) website webpage is mounted: when we open the website webpage, we will be prompted by the browser or computer security management software. The risk of the website and the website being mounted are reported because JS is embedded in the webpage and root directory file. When we open the webpage, the command of JS is triggered, Automatically execute scripts or PHP files containing Trojans to steal users' privacy data. The attacked websites are often those involving virtual currency or trading nature
(2) there are a large number of black links in the web pages: the general users of the web pages don't look abnormal, but in the source code of the web site, there are often a large number of anchor text links at the bottom, and these links are often hidden, with the font size of 0 or the limit position. The purpose of being attacked is that some hackers illegally implant links to improve the weight and traffic of some low weight websites to obtain benefits, while the website of the attacked party is often punished by recing the power. The attacked websites are often websites with certain search engine weight and traffic
(3) a large number of embedded web pages appear in the root directory of the website: if the website is not maintained in time, it will be found that the content of the website is suddenly increased, and the content included is not the content of its own website, most of which are illegal advertising pages, such as gambling, pornography, game plug-in and so on. When we check the server website data, we will find a large number of embedded static pages. There are a wide range of attacked websites, especially some websites with high traffic are favored by hackers
(4) when a website is opened, it will automatically jump to other website pages: this form is often called illegal bridge page. The forced JS embedded in the webpage, or the intrusion server, makes 301 redirection jump in IIS. The purpose is that hackers can benefit from illegal publicity or website weight transfer. The target of attack is often some websites with weight and traffic< (5) new content has been implanted into the website database. Website data has been implanted with some new content. The form of these content and other data of the website seem normal. However, if you look at the time and date, you will find that the content is often more concentrated than the content added by the editors. This kind of website is often some can handle the certificate website, such as the occupation qualification certificate, the graation certificate and so on. Hackers for some illegal customers in the official website implanted false occupation information, and obtain high profits. The attacked websites are often the official websites of some universities, the websites of ecation departments or the websites of some qualifications< (6) when a website is attacked, it is extremely slow to open a meeting: Web pages are often unable to open, or the server is unable to connect remotely. This situation is often e to the fierce competition of enterprises. Illegal competitors employ network hackers to maliciously attack their own website programs and servers, resulting in the website or server unable to operate normally, such as a large number of DDoS attacks, CC attacks Directly destroy or delete website data. Some hackers have psychological distortion and show off their ability to carry out malicious attacks. The attacked websites are often enterprise websites or websites with low maintenance level and a large number of security vulnerabilities< (7) website and server passwords have been tampered with: sometimes it is found that the passwords of websites and servers are incorrect and have been tampered with. It's because hackers brutally cracked the website and server with loopholes and tampered with the password. Its purpose is often to show off the hacker's technical ability and conct malicious and illegal hacker technical operations. The attacked website is all websites
(8) the website database is lost or damaged: sometimes I find that my website can be opened normally, but I can't continue to update the program and add new content. This situation is often some lack of professional ethics of the departure of programmers or hackers, malicious attacks on the website. The attacked websites are all kinds of websites
(9) DNS hijacking of website domain name: open your own website, but the content is not your own website content, and check that the server and website program are normal. In this case, when we Ping the website IP, it is no longer your own server IP. In this case, DNS hijacking of domain name often exists. Its purpose is to maliciously attack, show off or advertise interests. The attacked websites are all kinds of websites
(x) the website server runs slowly and is infected with worms and other viruses: sometimes the webmaster will find that the website is running updates or the operation on the server is abnormally slow. When we look at the process management of the server, we will find that there are processes with high CPU and high memory. This is a Trojan horse, often find worms and other viruses. Its purpose is to occupy the website resources, or the server itself is attacked, as a "broiler" used to attack other people's platform. The attacked websites are often servers with high performance and high bandwidth< (1) regular backup of website data: regular backup of website data can be used to recover the attacked website, even if the website is attacked or misoperated, and some website information is deleted, it can be recovered at any time. To this end, website operation and maintenance, website backup is the hard truth
(2) website program system update: website program and server system are updated regularly to use the version and patch, which can eliminate some existing security vulnerabilities, so as to prevent hackers from taking advantage of it
(3) regularly checking and killing website viruses: regularly checking and killing website viruses can prevent hackers from further breaking or stealing website data, and can also timely delete the back door vulnerability files of the invaded website
(4) website file permission setting: set reasonable permissions for website server files, such as canceling the write or execute permissions for some important files of the execution program, so as to avoid hackers tampering with website data
(5) opening the secure data transmission protocol and CDN acceleration of the website domain name, opening the HTTPS and CND, can run the website faster and safely, can hide the real IP of the website, to a certain extent, prevent DDoS attacks, CC attacks, domain name hijacking and other security risks. How to prevent DDoS attack and CC attack
(6) can use high imitation server: high imitation server has the characteristics of high performance, high bandwidth, high defense, in terms of security and operation, it has a certain foundation of maintenance, which brings a lot of convenience to the later maintenance, but the cost is high, so customers should consider it according to their own economic situation
(7) update the management password regularly: the website password can be obtained by leaving programmers' records or hackers' intrusion. Updating the website background password and remote server login password regularly can effectively prevent data loss
(8) regularly check the website log: the records of website operation data are recorded in the website log. Opening and regularly checking the website log clearly shows the running track of the website, which is one of the important ways of website maintenance.