If you put cruel words, you have to give the other party some color, and blindly protest and condemn is of a p use? Liu Busy replied to the email and began to scan the other party's mail server, there were many vulnerabilities in the email system at that time, Liu Busy casually tried 2 injection vulnerabilities and succeeded, no pressure. There are about hundreds of accounts in Yinshan's corporate mailbox, and the preferred account is naturally Lin Tian.

As the technical vice president of Yinshan Company, his mailbox authority is quite high, Liu Busy intruded and found that the other party was drafting an email to himself, and there were just three more emails to be sent to himself in the draft box, and the first one was only one sentence, "What if I don't?" The tone is very arrogant, it seems that it is really angry, and the attitude of the second letter is completely different, and he is still persuading himself not to ruin the transaction Yunyun with his will, and it seems that he still wants to make one last effort, hoping that he can be fooled. In the third letter, he himself found that this effort was futile, and he became official, saying that the company had not breached the contract and had shirked the responsibility.

After a while, a new email appeared in the outbox, with three drafts on it, which were not adopted, and the email said that a deposit of 20,000 yuan could be paid, but the source code of the program had to be seen first. It seems that the thief is still immortal, and this virtual machine is still very important to them.

Liu Xian browsed the emails of other high-level executives, and it turned out that at this time, Yinshan Company was contacting Symantec Company about the purchase of the killing engine, and the negotiations had entered the substantive stage. At this time, after Lin Tian saw Liu Xian's virtual machine program, he actually told the company's senior management that he had developed it independently, and sent the program to Symantec to suppress the other party's price with the virtual machine!

It's tolerable or unbearable, and the uncle can't bear it anymore!

The unbearable consequence is that the gateway of Yinshan Company has been attacked, and all the open computers are displayed with a line of words: technical scum is not terrible, what is terrible is that technical scum has not yet been honest! With 2:59:57 (countdown) until the payment time, this is your last chance to remedy, details can be found on the company's website. The words and the countdown are in the form of a background, which does not affect any operation of the computer, and when the staff of Silver Mountain opened the company's website, they found that the content of the homepage had been changed beyond recognition, which detailed the beginning and end of the transaction, and attached screenshots of the email exchange. The website is open, and anyone can browse them, as an Internet security company, it is already a great shame for your company's website to be hacked, not to mention such a disgraceful insider. The technician quickly closed the website, but found that he had lost the management authority of the website, and wanted to stop running the website by remotely logging in to the server, just logging in to the server, he found that the machine he was operating was no longer able to access the Internet, and when the technician was frustrated, a sentence popped up on the screen, "You have the wrong way to solve the problem, and the truth cannot be covered up by shutting down the server." ”

"Call the computer room! Let them shut down the server! Power! ”

The server is down, but the website is still accessible! Is this a paranormal phenomenon? "What's going on with Chacha? No, call a technical consultant! ”

"There was a problem with the domain name resolution server, and the company's website was pointed to another address!"

"Then hurry up and change it back! No, turn to Symantec for help. ”

The technician hurriedly logged in to the domain name resolution server and found that there was no problem with the pointing inside, "Boss, there is no problem with domain name resolution......

"Hurry up and ask the Buddha of the West Heaven to subdue the demon monkey!"

In fact, Liu Xian didn't hack their domain name resolution server at all, he just found the gateway of Silver Mountain Company according to the common login address recorded by the mail server, invaded the computer of Silver Mountain Company, and then modified their host table, the hosts file is a file in the Windows system responsible for the rapid resolution of IP addresses and domain names, saved in ASCLL format. When the computer types in a domain name (for example), it will first check to see if there is a record of the IP address of the domain name in the hosts file summary. If there is, access the IP directly; If you do not query the DNS server to request the IP address of the domain name. Liu Xian modified the host table in all the computers of Yinshan Company and pointed to the mirror website he made, and only when these computers accessed the domain name would there be problems, and other computers would still access the original website of Yinshan Company, but the current server has been shut down. This is actually a very simple theory, but there is a thinking trap in it, and in addition to technology, a little bit of psychology is added.

Isn't it equivalent to asking the Commission for Discipline Inspection, which has already been dealt with by corrupt officials, to deal with hacked websites with a computer that has been tricked into dealing with hacked websites? As a result, Liu Busy not only got the permission of their website server, but also the permission to manage the domain name.

Liu Busy did not deliberately hide his IP address, after all, the bank account opened with Bai Qian's ID card has been told to others, and there is no point in hiding it, although it is illegal to invade them, but they are suspected of contract fraud and can not be put on the table, Liu Busy has been narrowing the scope of the blow to the inside of Yinshan Company, he just asked for the performance of the contract, not blackmail, so he was not afraid of making things bigger, not to mention that the relevant laws on Internet security at that time were not very perfect.

When Liu Busy was concentrating on doing these things, Bai Qian next to her had already stopped chatting, and looked at Liu Busy's screen with wide eyes, although she didn't understand the Internet, but she could understand the content of the email, Liu Busy kept tapping on the keyboard, crackling, fingers flying, and then a countdown appeared on an unfamiliar screen, Sister Qian was stupid.

"Brother, what are you doing?" Sister Qian asked.

Liu Busy had just been deceived, he was in a bad mood, and he didn't have the patience to explain, so he just said: "It's okay, the other party wants to repay the debt, I'll give them some color to see." ”

Sister Qian doesn't know about computers, but she has never eaten pork and seen pig runs, and she still knows a little about the legendary hacker, she widened her eyes and said, "Brother, are you a hacker?" ”

Liu Busy nodded helplessly, in fact, his behavior had violated the spirit of hacking to a certain extent.

Sister Qian was very excited when she saw it: "Brother, you are too powerful, you are playing alone, and their whole company is going around?" Can you sell that program for 150,000? ”

Liu Xian just a series of high-intensity mental work was a bit exhausting, leaning on the back of the chair and saying weakly, "Actually, that program is cheap if it costs 1 million!" They took my program to press Symantec's price, and as soon as my program came out, the other party immediately agreed to reconsider the offer! ”

Suddenly, Liu Xian's mind flashed, since they used their own virtual machine program to press the price of Symantec, and Symantec immediately re-quoted when they saw the virtual machine, indicating that Symantec should know the goods, why not contact them directly? After thinking about it, Liu hurriedly immediately sent an email to Symantec to explain the situation. And modified the program, changing the prompt of the virtual result to "The author of this software is 'Mango', and a suspected virus was found." Mango is Liu Xian's English screen name. Use this to prove yourself as the author of the software.

As soon as the email was sent, Yinshan Company sent a reply, saying that they did not know about Lin Tian's behavior, but they were still willing to apologize for it, and now they have called 30,000 yuan, asking Liu to stop the intrusion.

Let's play with eggs, say one thing and do another, Liu Xian pouted disdainfully, who can be deceived by such a simple planting? Lao Tzu and you agreed on 20,000 yuan, you give Lao Tzu 30,000 yuan, the 10,000 is not clear! Do you want to convict Lao Tzu of extortion? You are still tender, the real hooligan fabricated charges do not need to be planted at all!

Liu Busy replied to the email to the effect that "Lin Tian is the technical vice president of your company, and he uses your company's email to talk to me about cooperation, which is an act of duty and should be responsible for your company." According to our agreement, I provide a virtual machine program, your company gives a deposit of 20,000 yuan, and I have fulfilled my obligations, and you are blatantly in breach of contract and refuse to pay liquidated damages. I just used some technical means in the process of asking for 20,000 yuan in liquidated damages, and it is not a threat of technology, your company is wealthy, and I sent 30,000 yuan at once, I don't know what it means, I should have sent it wrong, and I will remit it to your company after a while, but the handling fee should be deducted from your money, if your company really doesn't care about this 10,000 yuan, you can also donate it to charity on my behalf. ”

Bai Qian stared at the screen, feeling a little dizzy, the little brother she just met seemed to be more than just a martial arts master in bed, he really picked up a treasure. Therefore, when Liu Busy asked her to help go to the bank to transfer money, she did not hesitate at all, and it was good to be able to help the hero.

There are 30,000 yuan in the card, and 10,000 yuan will be sent back to Yinshan Company, and the handling fee of a few yuan will also be paid by the other party, and then 3,000 cash will be withdrawn back.

Not long after Sister Qian left, the mailbox prompted that there was a new email, Liu Hurriedly opened it and saw that Yinshan and Symantec had replied. Symantec's email was in English, which probably meant that they were willing to pay $200,000 to buy the source code of the virtual machine, but they had to ensure the copyright, that is, to prove that Liu was the original author of the software, and if the copyright could be guaranteed, the foreign party could pay immediately, and even said that if they were not satisfied with the price, they could negotiate again, so impatience would obviously put themselves at a disadvantage in the negotiations, which shows that Symantec is afraid of being preempted by others, and will not hesitate to do so. Yinshan's reply was that 30,000 yuan was an advance payment, and he hoped that Liu would think about it again, and they were willing to continue the transaction and double the price to 300,000 yuan.

At that time, the U.S. dollar exchange rate was 1:8.7, and $200,000 was more than 1.7 million yuan, so, Yinshan Company, you can play eggs.

1.74 million yuan, which has exceeded Liu Busy's psychological expectations, although there is an opportunity to rip off the bamboo, but Liu Busy did not do it. It is easy to prove that you are the original author, and it can be said that the original technical documents are sent over, plus the correspondence with Yinshan Company, which can be said to be ironclad. Symantec offered an annual salary of $300,000, hoping that Liu Busy could change jobs, although Liu Busy burst into tears with excitement, but he still reluctantly explained his identity, and he was just a high school student. Finally, the two sides finalized the cooperation matters:

First, the software was sold for $200,000;

Second, Symantec provided Liu with a $1,000 monthly stipend until he graduated from high school.

Third, if Liu is interested in studying in the United States, Symantec can provide a recommendation and provide a full scholarship.

Fourth, after completing his studies, Liu was given priority to work at Symantec.

Fifth, Liu was busy providing technical support to Symantec as much as possible.

Liu Xian felt a little embarrassed about the whole agreement, and the other party recommended and gave him a grant, but the result was just to provide technical support and priority as much as possible. Doesn't this force people to be profiteers? Liu was really upset, and finally said one more sentence, your company had better not hold shares of Microsoft in the past six months, and they may become defendants recently.

Liu Xian didn't know that this unintentional sentence had reduced Symantec and its employees by tens of millions of dollars.

The loss of tens of millions of dollars is illusory, but Carrie's $200,000 is real, at that time a house of about 50 square meters was only 7, 80,000, more than 1.7 million yuan, whether it was to buy a house or buy land, when the time came, it was a local tyrant, Liu Busy did not have a too mature investment plan in his mind, or the ambition to build a business empire, and he didn't want to be dragged down by the so-called career, money was a bastard, and he spent it to earn it, Liu Busy just wanted to be free, and the economic freedom had been initially achieved.

Liu Busy Diary:

1. Leadership thinking, when a problem arises, it is not to solve the problem, but to cover up the problem, or to solve the person who raised the problem, bury the car, intercept the interview, and delete the post, as if the thing is buried and deleted, it does not exist.

2. The real hooligans do not need to be framed at all, you may be rumor-mongered, prostituted, or mentally ill at any time, full of tricks and rich imagination.

This book was first published from 17k, the first time to see the genuine content!

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