Chapter 262

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Twelve formal security expert teams and twenty-seven reserve expert teams of the Ministry of Foreign Affairs International Intelligence Service were entangled with the Endless Defense at the core server of the Dongjing Self-Defense Force. They had the ambition to capture Mr. M.

But they didn't know that this was a trap set by Shi Lei!

The defense mechanism of the Endless Defense was very simple. It only knew the two most basic things, rejection and deletion.

Intruding through the port or pretending to be normal access would be directly rejected; Trojans, viruses, malicious data packets, and garbage data packets would be directly deleted.

Although this defense method was simple, it was very applicable.

Simplicity was the truth. The simpler the method, the less computer resources it took, the faster the reaction speed, and the higher the load pressure ability!

For a simple example, there were three main ways to determine whether an unknown file was a virus in the current mainstream antivirus software on the market.

The first was the most common and all antivirus software had the characteristic code structure judgment. Major security manufacturers, from a large number of honeypot systems, captured virus samples, analyzed the virus characteristic code, and then built a huge database of virus characteristic codes. When a suspicious file was found, the structure of the unknown file was first analyzed, including a series of shelling techniques, etc., to obtain the characteristic code of the unknown file, and compared it with the virus characteristic code of the virus library to confirm whether it was a virus file.

This method, there was a very popular cloud security in the future. In fact, the antivirus software uploaded the characteristic code of the unknown file in the virus characteristic library on the server side to compare whether it was a virus or not. It was still just the most basic and common characteristic code comparison, hyped up as some cloud security, bragging about something to fool people!

The second method was the genetic code, which was the upgrade system of the characteristic code. In fact, it was also a characteristic code. Each characteristic code could only correspond to one virus, but a genetic code could correspond to a genetic series of viruses.

Although it was the nature of the characteristic code, the genetic code effectively reduced the amount of data in the virus characteristic library.

The third method was called inspiration, and the principle of this method was related to the Endless Defense. It judged whether a file was a virus program by comparing the difference between an unknown file and a normal program.

There were two methods of inspiration, one was dynamic inspiration, and the other was static inspiration. Static inspiration was through decompiling the static code instruction sequence, thus understanding the true motive of an unknown program to determine whether it was a virus.

Dynamic inspiration was the sandbox technology. Through anti-virus software, a sandbox environment was built and unknown files were run in the sandbox to see what the unknown program would do and determine whether it was a virus.

Dynamic inspiration had a huge drawback. Creating a sandbox environment would consume a lot of system resources, causing the computer system to lack resources, causing the normal operation to be sluggish and stuck.

Kaspersky was the best in this field. Its antivirus effect was the best, but just like its name, it was also known as' crashing to death '!

From the above three methods, it showed that no matter which method it was, a lot of work was needed to determine whether an unknown file was a virus or not. Doing a lot of work would take up a lot of system resources, whether it was CPU computing resources, memory storage resources, or other system resources.

It would take up a lot of system resources and cause the computer equipment to be under load. If it was slightly more serious, it would cause the computer equipment to lag or even crash!

As for Infinite Defense, there was only one step to determine whether the unknown file was a virus or not!

He just needed to make sure that it was a protected document!

If it wasn't, he could directly delete it. There was no need to do anything more, and the pressure on the system would be reduced by a lot.

So, facing Group 84, the security experts of the Ministry of Foreign Affairs International Intelligence Service, Infinite Defense was able to withstand it!

Shi Lei checked the official website of the Ministry of Foreign Affairs International Intelligence Service. Using server No. 6 as the base, he joined forces with supercomputers Yan and server No. 8 to form a cluster of servers to attack the official website's web server together.

As the official website of the Ministry of Foreign Affairs International Intelligence Service used Microsoft's IIS server and was built using asp.net technology, Shi Lei had a deep understanding of Microsoft's system!

Controlling the supercomputer Yan, Shi Lei did not trigger any alarms and obtained the low-level access to the web server. Then, he slowly increased the access level from the low-level access level.

Obtaining the low-level access level first and then increasing the access level was safer than obtaining the high-level access level directly. Especially the web server of the Ministry of Foreign Affairs International Intelligence Service. When Shi Lei scanned it just now, he found an alarm mechanism that was connected to the internal LAN. It was controlled by an individual, and it was very difficult to remove it.

The Ministry of Foreign Affairs International Intelligence Service was the biggest intelligence agency in Voisin. They were part of the internal LAN, and only a few nodes were connected to the external LAN.

The web server was connected to one of the nodes.

But when Shi Lei obtained the high-level access level, he found a big problem!

"Damn it! It's one-way data!" Shi Lei snorted in his heart.

The so-called one-way data was a derivative of the one-way link to the web server. If the Ministry of Foreign Affairs International Intelligence Service's web server was A, and the internal data server of the Ministry of Foreign Affairs International Intelligence Service was B.

One-way data meant that B could access A, transmit data to A, and view all of A's information. But A could not transmit data to B, and could not view B's information.

Even A's data service request could only be stored in A, and B could only access A's data and read it, and then reply to the corresponding data request.

If it was an ordinary hacker, they would not be able to do anything when faced with such one-way data. After all, the web server A could not send any data to the internal server B, and only the server B could investigate.

But Shi Lei was the world's top hacker. Even if one-way data could block many people, Shi Lei was not one of them!

Shi Lei directly entered more than 655 lines of code into the web server, and then chose to execute the code.

These 655 lines of code were a total of more than 65 data requests. These data requests would cause memory overflow, and the internal data server of the Ministry of Foreign Affairs International Intelligence Service would be suspended in an instant.

The moment the service was suspended, the one-way data restriction was naturally lifted, and two-way data communication was restored.

This process was very short, because the memory of the data server was different from that of ordinary personal computers. It was ECC memory, and it had error checking and correction functions.

After the memory overflow, the ECC memory would automatically correct the errors. Shi Lei had to enter the internal LAN of the Ministry of Foreign Affairs International Intelligence Service before the ECC memory was restored.

Shi Lei had the supercomputer Yan, and it was also connected to Pukong's server No. 8. Through the special cluster system of server No. 6, he combined the two supercomputing resources and quickly invaded the internal LAN of the Ministry of Foreign Affairs International Intelligence Service.

After entering the Ministry of Foreign Affairs International Intelligence Service, Shi Lei did not act rashly, nor did he attempt to tamper with the data. Instead, he implanted the backdoor program he had written in advance into the system of the Ministry of Foreign Affairs International Intelligence Service.

Because last time, for the authorization of Project Robot, Shi Lei had entered the Ministry of Foreign Affairs International Intelligence Service, and clearly knew the server situation of the Ministry of Foreign Affairs International Intelligence Service.

Therefore, the backdoor program Shi Lei had written this time used assembly language to directly sink into the system's bottom layer. It was very hidden and inconspicuous, so that it would be convenient for him to enter the Ministry of Foreign Affairs International Intelligence Service next time.

After dealing with the backdoor program, Shi Lei prepared to check the top-secret database of the Ministry of Foreign Affairs International Intelligence Service's intelligence department to see if there was any information they needed.

However, just as Shi Lei was about to check the top-secret database, the web server of the Ministry of Foreign Affairs International Intelligence Service was attacked again!

If it was just an attack, it would have been fine, but the idiot hacker actually forced his way into the web server without any concealment.

Not only that, the new hacker, after obtaining low-level access, actually directly tampered with the official website of the Ministry of Foreign Affairs International Intelligence Service and left a public provocation message!

"Mr. M, aren't you so awesome? Why are you besieged by the Ministry of Foreign Affairs International Intelligence Service? The great Raphael is waiting for you here. Do you dare to come? "— Raphael

When Shi Lei saw this message, he was so angry that he almost vomited blood!

What did it mean to be enemies on a narrow road? What did it mean to make a fool of oneself? This was it!

Raphael thought that Shi Lei's Mr. M alias was besieged by the Ministry of Foreign Affairs International Intelligence Service in Dongjing Self-Defense Force. Taking advantage of this opportunity, Raphael flaunted his power and hacked the official website of the Ministry of Foreign Affairs International Intelligence Service, leaving behind words to humiliate Mr. M.

Who knew that this self-defeating act would cause an alarm in the web server of the Ministry of Foreign Affairs International Intelligence Service, alerting the experts of the Ministry of Foreign Affairs International Intelligence Service. They would definitely return to their nest to defend it.

As a result, Shi Lei's intrusion into the internal local network of the Ministry of Foreign Affairs International Intelligence Service would definitely be exposed.

Furious, Shi Lei quickly returned to the web server and found Raphael's connection IP address record. He planned to save this record and leave it in the web server so that the Ministry of Foreign Affairs International Intelligence Service could deal with Raphael.

However, Raphael, that b * tch, was indeed worthy of being the world's top hacker. He actually had the same idea as Shi Lei and was already copying Shi Lei's connection IP address record!

"F * ck Raphael, you forced me to do this!" Shi Lei was furious. He did not alarm Raphael. Instead, he found the top-secret information of the intelligence department in the internal local network of the Ministry of Foreign Affairs International Intelligence Service. He selected a file called "SO Plan" and pretended to be an attempt to view and copy the operation.

Then, he changed the connection IP address to Raphael's connection IP address!

On the web server, Shi Lei pretended not to notice Raphael's actions and asked Raphael to reserve his temporary connection IP address in the system record.

Raphael thought that he had done it flawlessly and was not discovered by Shi Lei.

However, Raphael had made a fatal mistake!

(To be continued. If you like this work, you are welcome to come to qidian.com to vote for me. Your support is my biggest motivation.)