Chapter 53: Handshake
Chen Yan didn't know that he was already famous in the xx group.
What he also didn't know was that Elon had found information about the intruder in the server of the "Beauty List". After cracking the two-layer springboard, he also successfully found the real IP of the intruder, and without the other party's knowledge, he entered the intruder's computer and found out his real identity.
"Name: Yu Wen"
"Student ID: 201900199904031"
"Department: Computer and Communication Engineering"
"Major: Computer Science and Technology"
Elon has never been a peaceful person, since you dare to hack my boss, then I will definitely you, how can you be comfortable if you don't?
So at the same time as sending the above information to Chen Yan, he also sent it to the "Beauty List", as long as you refresh the "Beauty List", you can see the center of the page, a photo of a boy occupying half a page size, and the animated pictures that are frantically chased and bitten by various Erha are scrolling in turn, and at the same time, there are also his text messages scrolling and floating under the GIF.
At this time, the people of Hunan University seem to have found a unified outlet, and the BBS of the county institute of technology is full of posts of "hand over the residual warmth" and "the residual temperature comes to die", and the situation is developing in a larger and more uncontrollable direction.
After Elon did all this, he threw Chen Yan a toolkit, and then waved his sleeves without taking away a single cloud, and quietly disappeared into invisibility.
When Chen Yan found out about what Elon had done, it was already five minutes later.
He didn't have much turmoil in his heart, he solved the problem if he had a problem, and if the situation was uncontrollable, he would make the situation controllable, or eliminate the impact in the future, anyway, he couldn't make much waves.
So at this time, there is no need to rush forward first, after all, the students of Hunan University need to vent, and the reason is on their own side.
At the same time, Chen Yan knew very well in his heart that he would definitely not be able to get out of this matter, and it would be impossible for him to hand it over, and he would probably have to carry all this on his back.
After unzipping the toolkit, it was found that this was a set of hacking tools running in the "Plague Death" system, all of which were practical tools developed by Elon himself. There are IP scanning, vulnerability detection, data interception, password cracking, sql injection and database management, etc., Chen Yan took the computer on the podium and did the next test, and within a few seconds of filling in the IP, a bunch of system vulnerabilities were displayed, and then after choosing to obtain permissions, the computer was easily breached. At this point, as long as the computer is turned on, Chen Yan can occupy the tower and use it as if he were entering his own computer.
In fact, this set of tools is far from so magical, but it is to exploit known vulnerabilities to attack, which depends on whether the opponent's "plague is dead" system has installed the latest and most complete vulnerability patches, or whether it uses some weak passwords, or opens some very important ports, which are the main reasons why it is easy to cause the computer to be breached.
The second more advanced one is to use social work. After all, the strongest fortresses are often breached from within, and wherever there are people involved, there will be mistakes, and the knowledge of social work can be used to break through from within.
It didn't take long for Chen Yan to become proficient in the use of these tools, and he also had a certain understanding of network security and computer security.
First of all, the network protocol, Chen Yan found a very interesting place, in the TPC/IP protocol, no matter who he comes from, as long as someone comes to shake hands with you, you will unconditionally agree, even if you give you a few slaps, green your girlfriend, he will stretch out his hand, you will still shake hands with him, like "100% empty-handed white blade"! 」
This is the three-way handshake, or four-way handshake, in the TPC agreement. Four handshakes, that is, he is green to you, in addition to shaking hands with him, you have to wave goodbye to him when he leaves.
No matter who comes from the "house number" (i.e. IP address), the first thing to do is to shake hands first, even if the person who comes is serious and has a purpose, you can't talk directly without shaking hands with him first. Because you have to shake hands before you can talk, that's the rule.
If the person who comes is not with a serious purpose, just to shake his hand, slap him and leave.
This is playing hooligans, and there are many hooligans, which is an attack, commonly known as a DDOS attack. It's like a person, his personal ability is a CPU, a 100 megabit network terminal, he can shake hands with 10,000 people at the same time, and when it reaches 20,000, he can't respond, if it reaches 100,000 people, then he will be down and unable to handle normal requests.
There were also some other places that Chen Yan found very interesting, and more than half an hour of research passed.
The battle between the BBS on the two campuses of Hunan University and County Institute of Technology has reached a white-hot stage, and students on both sides feel that they are on the side of one, and demand that the other side delete the post and apologize.
After Chen Yan looked at it, he edited a post and posted it once on both forums.
Probably the content is to say that technology has never been a weapon for bad people, there is technology, when it is for the country and the people, even if it is not, it should be righteous and upward, in order to create value and benefit one party, and work hard to achieve the individual, so that there is no technology in vain, and it is prudent, cherished, and self-loved.
Originally, this post was posted in the surging BBS like a tide, and it didn't make a little wave.
But when Chen Yan posted the links of the two posts in the "Beauty List", and Yu Wen was chased by Erha under the animated picture, the moderators of both sides pinned the post, and countless people posted at once, praising the height of the position where the post stood.
For no other reason, this guy is a bull.
It was he who restored the beauty list.
It was he who dug up the information about the "intruder".
It's just as immobile as a stone, locked on to the target, ready to go, swift as the wind, ah, click, and it's done.
It was also he who said such profound words that were convincing.
makes this group of young people who are only about twenty years old seem to have found an idol.
After seeing his posts on the top of the two BBS, Chen Yan deleted the residual temperature information posted on the "Beauty List" and restored it to its original appearance.
After that, another post was made.
"Welcome to all students, use the beauty list to hone their skills, as long as you break it once, you will be rewarded with 10,000 RMB, unlimited times, limited to students between the two schools, and this reward will eventually be donated to the Hope Project in the name of the attacker. 」
After this post was issued, another wave of discussion was set off, and praise hit Chen Yan like a tide.
For Chen Yan, it doesn't matter if the money is not money, anyway, there is money.
In addition, others attack, he defends, and he can also enhance his skills.
Of course, the most important thing now is to replace that junk PC server first.