Chapter 43: ARP Trojans

After a brief inquiry and transcripts, the police learned the details of the incident, and Huang Mao and his party were identified as picking quarrels and provoking trouble. Just when Yang Feng, Liuye and Xiaolong were just about to leave the police station, the policeman in charge of this public security case stopped Xiaolong, his brows furrowed, and his eyes were quite stern: "Wait, it's obvious that these people are going to you to pick quarrels and provoke trouble, look at ......", and then pointed to a few gangsters led by Huang Mao sitting on a plastic bench, only to see those people drooping their heads, all covered with colors, and two people holding their stomachs and only shouting pain, all embarrassed, " Look at you, you can't beat people to death, if you focus on it, it will be considered excessive defense, and this will rise to a criminal case. ”

Xiaolong smiled: "I'm a practitioner, I have a serious start, comrade police, please rest assured." ”

The policeman waved his hand: "It's not an example." After hearing this, Huang Mao felt bad in his heart, and shouted: "Then our brothers have to go to the hospital for examination, there is something wrong with this, you have to compensate me!"

"Whether or not there is compensation is not my responsibility. I can take you for an examination in a while, and you can't contact the victims anymore!", the policeman said to the yellow-haired them solemnly.

Walking out of the police station, Yang Feng was always thinking about a question in his mind: why was Xiaolong at the scene at that time, and would this matter have anything to do with Xiaolong?

The streets have gradually deserted, and from a distance, the continuous neon lights stretch to the end of the horizon, but the streets are less bustling. Yang Feng took out his mobile phone and looked at the time, and before he knew it, it was already 23 o'clock in the evening. The cacophony of music and shouting was gone, and looking up at the starry sky, all you could see was some bright stars still twinkling, but most of them had been obscured by the neon lights of the city.

【Sea Ear Coast】

On this silent night, in the quiet campus of Hai'er BC District, more than 30 kilometers away, Wang Ziling couldn't sleep at night. This girl with a weak heart, is thinking about Yang Feng, who she never forgets, has been looking at the ceiling with her eyes open, thinking about what she has experienced these days, tears continue to flow from the corners of her eyes, her heart seems to be a heavy palace gate, she can't push it, she knows that the prince is behind the gate, but she can only slump at the door, hoping that the personable prince can push open the door, stretch out his hand, and greet him.

During this time, Yang Feng has been busy with his technical research and has no time to spend with his friends. It's in this emotional vacuum. Girls always wonder if the boy doesn't like her at all, whether he already has a girlfriend but doesn't know about it, or if he doesn't like him at all?

Thinking of this, Wang Ziling had already fallen into an emotional breakdown, and the more she thought about it, the more irritated she became. "Alas, I really want to be with him for a long time, it's good to just walk around the campus", Wang Ziling hugged her quilt tightly, imagining that it was Yang Feng's body temperature, so kind, so warm ....... The more I miss, the more sad I feel, and the more sad I feel, the more I cry.

When I closed my eyes, all I thought of was Yang Feng's smile, Yang Feng's ambition and oath to be admitted to Tsinghua University, and all the figures sweating on the field. Thinking of the rain that day, Yang Feng sang the song "Happy Rain on a Spring Night" with coffee, everything was so beautiful. But whether that beauty belongs to you is still unknown. Does youth hurt? It really hurts.

I reached for my phone and opened my contacts. Under the dazzling light, he chose "Yang Feng", and his thumb hesitated on the call button, but finally closed it.

【Wenjiang Provincial Network Supervision Brigade】

"Recently, there have been frequent unexplained network attacks in Haierbin City and Jiangbei Special Economic Zone in our province, which exploited the vulnerabilities of Microsoft's MS06067 and infiltrated ARP spoofing attack tools through the WAN to the LAN, resulting in attackers who can manipulate a large number of broilers, sniff LAN packet propagation, and control LAN disconnection.

Team Captain Sha Ou looked at the projection on the screen and said resolutely: "We must bring to justice the manipulators behind these events and use 0Day to attack, this method is extremely despicable, organized, and premeditated." Moreover, the ability to use ARP attack technology shows that the technical backbone of this organization is at least a bachelor's degree or above in computer science, and the portrait of this criminal must correspond to the existing clues in a timely manner."

Everyone in the audience nodded their heads in agreement with Sha Ou's opinion.

"Our department analyzed the attack vectors, first of all, the attacker made a phishing website, and everyone who opened the website automatically downloaded and executed a Trojan horse because of the vulnerability of Microsoft's system. This Trojan is not the original attack program, and after reverse analysis, it is found that the code style of this Trojan is not the same technician compared with the ARP virus that was subsequently transmitted to the user's computer through the local area network, and it is obvious that the latter's code should have a lot of experience in writing in terms of code completion and sophistication", added the member of the Technical Analysis Section.

After hearing this, Sha Ou was silent for a while. Everyone is waiting for the sand gull to give instructions on the next step.

But Sha Ou just knocked lightly on the table, thought about it carefully and said: "No, it is possible that anyone can launch the attack, and we can't use traditional methods to profile hackers." At present, the risk of international Internet security has risen sharply, for example: according to the data obtained by the International Internet Monitoring Organization, the hackers who have been caught in recent years have become younger and younger, so it is ...... It is possible that the attack was carried out by a child. On the one hand, the Technical Analysis Section must hurry up to obtain the real information of the attackers, and on the other hand, it must collect evidence and form a complete chain of evidence to prove the criminal process and motives of the criminals."

"We found that there is a point worth scrutinizing through big data analysis and comparison," and then the technical analyst showed a map of Haierbin City on the projection. We can see that through the heat map, we can see that the occasional orange place is the monitored broiler that has been attacked, the red part is the area where we received the alarm of disconnection, coincidentally, the probability of the orange part is in a standard normal distribution (completely random event distribution) in the city, and the spread trend is Brownian motion, and the red part is in an aggregate state, surrounding the vicinity of the city's No. 1 Middle School", a member of the technical analysis section explained the overall situation of the attack.

Sha Ou asked eagerly: "Are there any actual property losses among the masses at present?"

Intelligence Section: "At present, the direct economic loss is about 6 million yuan, which is mainly manifested in the phenomenon of Internet cafes being cut off from the Internet, and seven Internet cafes have taken the initiative to cancel their licenses and terminate their operations. There should also be some illegal business establishments that have not obtained a license to operate Internet cafes have also been forced to close, and this part of the data cannot be counted for the time being."

Sha Ou stood up: "We must crack down on this new type of cybercrime, which may also have extortion and extortion, Xiao Wang, you contact the technical investigation department to control the backbone network of our city, and closely monitor the variants and attacks of Trojan horses!"

"Yes!"