"This seems to be the network address of our Jiangzhou Telecom!"

Gu Wolf was very familiar with Jiangzhou's IP address segment, and the moment this address was tracked back, he recognized that the address was from Jiangzhou.

"Can you find out where this address is coming from?" Xiao Yuan asked.

"The geographical location is easy to check, and when it comes to the specific unit, I am afraid that telecommunications will not be disclosed." Gu Wolf said.

"Leave it to me, I'll check." Tang Xinyu said, as he said he took a pen and paper to write down the address and went out.

"Prepare me a computer with a programming environment, and I will prepare a big gift for this friend." Xiao Yuan said to Gu Wolf.

"I'll take you."

Gu Wolf brought Xiao Yuan to the company's development department and asked, "What development environment do you want?" ”

"VC will do the trick." Xiao Yuan said that the most flexible and powerful development under Windows is VC, and the current Xuanne Firewall is Xiao Yuan's original use of the VC6.0 development environment, using C++ and assembly to jointly develop.

"Come on, this machine has it." Gu Wolf led Xiao Yuan to a computer, helped him open the computer and said.

"Okay, I'll just stay here, you go back to the network department to keep an eye on it, at this time the characteristic analysis of the firewall should come out, if those IPs are too arrogant, should you force people to kick people, you just have to decide." Xiao Yuan said.

After Gu Wolf left, Xiao Yuan first copied Spyadre to the computer, and then opened VC6.0 and created a new win32 project, because what he wanted to write was just a temporary gadget, and he didn't need any prior system design, and directly typed the code.

In the middle of his writing code, Jiang Hua came over, because Xiao Yuan didn't have time to pay attention to him, watching Xiao Yuan knock on the code, he left again, and then Tang Xinyu came again and brought Xiao Yuan a message, that IP is the IP of Tianlong Company.

This news made Xiao Yuan a little surprised, and then he thought about it, but it was easy to figure it out, Xuanne Company and Tianlong Company are both newly opened network security companies, and coincidentally, the core products promoted by the two companies are network firewalls, so invisibly, the two companies have become commercial competitors, and it is reasonable for the other party to deliberately attack Xuanne.

"I just don't know how much Zhang Dalong paid for inviting sardines?" Xiao Yuan secretly thought, with his understanding of sardines, this guy is extremely persistent in his love of money, if he wants to make a personal move, without a hundred thousand dollars, I am afraid that he will not move, of course, it is not ruled out that the sardines only provided technical support, and did not directly shoot the possibility of it, in that case, Zhang Dalong may have to pay a smaller price.

"The Blackjack who invited Gu Wolf to join Blackskull last time. Is it also in Zhang Dalong's company? Did he find the sardines? ”

"No matter what the situation, since you have met me, then prepare for the gift."

Almost instantly, the code in Xiao Yuan's hand did not stop, but his mind turned several times.

It took more than an hour for the coding work to be completed, and Xiao Yuan compiled the program he had debugged into an executable file, copied it to a floppy disk, and returned to the network department.

"What's going on now?" Xiao Yuan asked.

"It's still the same attack method as before.,But this time these IPs seem to have intelligence.,And it seems to have found the law of the trap automatically set by the second layer of protection.,Although the IP that enters the second layer of protection is not as much as last time.,But the cracking efficiency is much higher than the last time.,If it weren't for the fact that you opened the kicking function,This time it's really hard to resist.,You have to think of a long-term plan.,It's too annoying to come over in batches like this.。 Gu Wolf said.

"To get the other party to stop attacking, the conventional way is to block all the opponent's broilers, and then cut off the main control end of the attack, give me the computer, I will send a big gift to Tianlong Company, they accepted this big gift, they should not take care of us." Xiao Yuan said.

Gu Wolf gave up the computer to Xiao Yuan, and Xiao Yuan copied the program he wrote to the computer, and then configured the spyadre integrated into the Xuanne Firewall, and integrated his newly written program into the firewall as well.

In this way, SPYADRE was used to establish a virtual channel from the Xuanne server to the host of the IP address just detected, and then the software written by Xiao Yuan became a cannonball, which could be put on the opponent's computer by the firewall through this channel.

In order to ensure that his code can be put into the other party's computer, Xiao Yuan needs a very clever data package, which can use that vulnerability to open a backdoor on the other party's computer, so that Xiao Yuan can quietly put the software he wrote on the other party's computer, of course, this premise is to require the other party to use a Windows system, if the other party is using a non-Windows system such as Linux, Xiao Yuan's efforts may have been done in vain.

After all the configurations are done, Xiao Yuan used the packet capture function of the firewall to capture a few HTTP packets, and then selected one of them to transform the packet, which has the advantage of not having Xiao Yuan design this packet from scratch, which can save a lot of time.

It took Xiao Yuan more than 20 minutes to design this data packet, and at this time, there are more and more IP connections with a certain intelligence that break into the firewall, if it weren't for the second defense of the firewall has been kicking people out, I'm afraid the firewall will really be broken by the other party's endless wisdom sardines.

After Xiao Yuan had done all the configuration work, he opened the control window of the firewall, where he executed a send command to send his pre-designed packets through the channel established by Spyadre.

Soon, the data packet sent in the past returned a message, Xiao Yuan was overjoyed, because the other party was using a Windows system, and the vulnerability he knew still existed, and the code contained in the previous data packet had used that vulnerability to open a backdoor on the other party's computer.

Xiao Yuan typed a few lines of commands in the firewall control window again, sent the program he had written earlier, and placed it on the other party's computer.

The first step of this software into the other party's computer is to generate a service process in the system, and then delete itself, and the next work is left to this service to solve itself.

The first step of this service is to generate a list of the processes running on the other party's computer and send it to Xiao Yuan's computer.

Xiao Yuan carefully observed the list and found that there was a very familiar process in it, so his face showed a look of understanding, and he said secretly: "Sure enough, it's him!" ”

After getting the information of the other party's running program, Xiao Yuan sent a command to the service in the other party's computer, and sent the other party's IP address by the way.

"That's it, it won't be long before these pesky sardines will be gone." Xiao Yuan said with an indifferent smile.

"What the hell are you doing on the other person's computer?" Gu Wolf had been carefully watching Xiao Yuan's every move, and did not ask, knowing that Xiao Yuan had stopped, he opened his mouth to ask.

"It's nothing, just let those sardines collectively turn against the water, so we can stop." Xiao Yuan smiled indifferently.