Chapter 63: Incredible Genius
Du Jin turned around and pointed at the huge display screen on the wall behind him. Looking at the satellite detection photos occupied by the huge halo on the screen, he said:
"Since we cannot use our satellites for reconnaissance and communication, nor can we crack the specific signal frequency band in this area, then I can solve the problem from the root cause, that is, by directly and covertly invading the air force command system of country M. You can use the opponent's signal to get in touch with the "reef", and you can also get the distribution and number of its search forces from the existing intelligence of the M Army, so as to prepare for the evacuation after the "reef"."
Everyone present was still silent. The solution Du Jin mentioned was indeed that they had not considered it. As the saying goes, "catch the thief first, capture the king". If successful, the results would undoubtedly be amazing, let alone rescuing the "reef". , and even some other military information can be obtained, which is undoubtedly very valuable for Xia State, which is at a certain disadvantage in terms of anti-air power.
However, the premise of all this is that the invasion can be successful and can avoid inspection by the information operations department of Country M. Otherwise, it is all empty talk. After all, no matter how good the dream is, what is the use if it cannot be realized in reality? ?
Si Qing also noticed the 'difficulty' of Du Jin's plan. If anyone else had spoken out about this idea, she would have immediately refuted this "whimsical" behavior. But for Du Jin, she could only do her best. Use trust to suppress the confusion in your heart. As one of the actual controllers of the military, Elder Ji is involved in invasion and counter-invasion. He naturally understands the difficulty of invading the M Army Air Force command system.
At present, the military system of M country mainly uses the intrusion detection system, that is, "IDS" and security firewall to form a defense system, among which "IDS" plays a very important role. It is a kind of real-time monitoring of network transmission. When suspicious transmission is found, A network security device that issues alerts or takes proactive response measures. The difference between it and other network security devices is that IDS is a proactive security protection technology.
It monitors the system in real time and issues warnings if anomalies are detected. It is divided into several categories based on different sources of information and differences in detection methods: According to the information source, it can be divided into host-based IDS and network-based IDS. According to the detection method, it can be divided into anomaly intrusion detection and misuse intrusion detection. Unlike a firewall, an IDS intrusion detection system is a listening device that is not connected to any link and does not require network traffic to flow through it to work.
Analyzing various events and discovering violations of security policies is the core function of the intrusion detection system. Technically, intrusion detection is divided into two categories: one based on signs and the other based on anomalies.
For flag-based detection technology, the characteristics of events that violate security policies must first be defined, such as certain header information of network data packets. Detection mainly determines whether such features appear in the collected data. This method is very similar to antivirus software.
Anomaly-based detection technology first defines a set of values for "normal" conditions of the system, such as CPU utilization, memory utilization, file checksums, etc., and then compares the values during system operation with the defined "normal" conditions. Compare to see if there are any signs of attack. Central to this approach is how to define what is considered “normal.”
The methods and conclusions drawn by the two detection technologies are very different. The core of signature-based detection technology is to maintain a knowledge base. For known attacks, it can report attack types in detail and accurately, but its effect on unknown attacks is limited, and the knowledge base must be constantly updated. Anomaly-based detection technology cannot accurately identify attack methods, but it can identify a wider range of even undetected attacks.
Of course, 'IDS' also has a shortcoming. Due to the rapid development of contemporary networks, the network transmission rate has been greatly accelerated, which has caused a great burden on the IDS work and also means that the reliability of IDS detection of attack activities is not high. When IDS responds to its own attacks, the detection of other transmissions will also be suppressed, which means that IDS will give false alarms to some high-rate control signals. But now, whether it is M country, Xia country, or Other countries that adopt this kind of security protection method have basically improved IDS to adapt to the current network attack and defense situation.
In short, neither Xia State nor M State has given up cracking and invading the other party's military system, but neither side has made breakthrough progress. However, Du Jin now stands up and says that he has a way to deal with Elder Ji. Part of him was shocked, and the other part felt unbelievable. He looked at Du Jin and said:
"If this method can be implemented, it can indeed solve the current dilemma. However, our world is very urgent now. If we arrange information experts and related equipment, we will miss the opportunity to rescue... ............”
The subtext of this sentence is to ask Du Jin not to "pretend" by talking about some unachievable methods, but to come up with some practical methods, and Du Jin responded without thinking:
"Elder, I don't need other auxiliary personnel or auxiliary equipment. You only need to give me an operating device that can connect to the external network and has enough computing power to support it. I am 90% sure that it can be done without causing M With the country’s attention, we can get the results we need, and it won’t take too long.”
Listening to Du Jin's confident words and assurances, Elder Ji still didn't believe it in his heart, but he didn't refuse directly. After thinking for a while, he said to the deputy commander on the side:
"Isolate some terminals on the command table physically and data-wise, assign them to two service units, and then connect them to the external network through the reservation data interface. Let Comrade Du Jin give it a try."
After saying that, the deputy commander acted without any doubts. Then Elder Ji turned his head and looked at Du Jin's eyes. Du Jin's eyes seemed to reveal an energy that could go straight to the soul, which made Elder Ji's heart involuntarily Although he believed in Du Jin's ability, he still said to Du Jin:
"Well, let's give it a try as you said, Comrade Du Jin, but one thing should be noted. If the intrusion is discovered by the other party, the connection with external data must be stopped before the other party carries out reverse intrusion and intervention. Here's Some secrets cannot be revealed. Although I have prepared for the worst case scenario, I don’t want this worry to become a reality. How about it, are you still sure about it now? "
Du Jin still nodded seriously. He seemed to have confirmed with "Xiao Ai" that there would be no problems. Even if there were problems that were beyond his control for a while, he would just find a way to connect "Xiao Ai" with physical connection means. into intruding devices, then everything will be easily solved. It is undeniable that Country M started ridiculously early in the field of data security. It can be said that it started when most countries on the earth were still developing telegraphs and first-generation calculators. Preparations have been made in terms of security defense, and the results of this advantage are naturally significant. Even the current Xia State, or the former Red Big Brother, have not completely broken through the information security of the M military in a true sense. barrier.
The efficiency of the Xia Kingdom's military is absolutely unparalleled in the world. Less than ten minutes later, all the equipment and conditions required by Du Jin were ready. Then under the gaze of everyone, Du Jin sat in front of the prepared desktop terminal, and then He used the touch keyboard on the screen to perform one-handed operation with his right hand. This move made everyone at the scene, including Si Qing, stunned for a moment. Du Jin's "pretending" performance undoubtedly exceeded expectations. The effect absolutely shocked the cognition of those present. After all, the ability to confidently invade the command system of the Air Force of Country M was already outrageous, and now it was unbelievable to operate it with one hand.
Du Jin also raised his head at the right time and explained:
"Ahem...because I just had a relatively big operation this morning and my other hand is a bit uncoordinated, so I only use my right hand to work, but please don't worry, this will not affect my success. The rate has a big impact, but time may slow down a little."
After Si Qing and Elder Ji heard this, their inner evaluation of Du Jin increased. After all, Elder Ji had already investigated Du Jin's identity when he agreed to Du Jin coming here. Naturally, he knew something about the attack that happened during the day, and It was out of gratitude to Du Jin for risking his life to save his granddaughter that he made an exception and agreed to Si Qing's idea of bringing him here. At this time, Si Qing's heart was filled with self-blame and emotion. Du Jin's dedication made her heart His love for Du Jin reached a peak. For the first time, Si Qing put Du Jin in the same position as his responsibility to the family. Those who know Si Qing will know that Du Jin is in the same position at this time. How high her status is in her heart.
Although Si Qing is not the kind of innocent girl who gets carried away when she falls in love, she is her first love after all, and she has the kind of character that doesn't give up easily once she falls in love, even if she is really with Du Jin. It hasn't been long, but the three years of previous acquaintance and contact have become the cornerstone of their relationship, which is extremely strong.
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At the same time, at the North-M Air Force Command Center, several information monitoring personnel were sitting leisurely in front of the information terminal as usual, drinking coffee and talking about daily gossip. Radar, satellite status, airspace identification and other equipment were displayed In a very calm state, one of the technicians named Maire smiled and said to their colleagues:
"I don't know who the Army guys are going to arrest this time, so we have the Air Force to be so cooperative."
A woman with an attractive figure wrapped in a military uniform said nonchalantly:
"Mai Lei, you don't have to worry. Our strategic information support aircraft has blocked almost all signals in that area. Except for our internal communication signals, it is impossible to get in touch by any other means. And what's the star in Xia Kingdom?" The satellites have also been blinded by our "eyes", and they are probably very busy now! Hahaha."
Another technician also echoed:
"Haha Leila, you are right. If those Xia people really want to bypass our joint blockade, they will have to wait until the next life! Hahaha, maybe when we finish this cup of coffee, that little mouse will be found. Then we can get off work early.”
"uh-huh."
While these people were chatting and laughing, commenting on Xia Guo's technical level with some harsh words, none of them noticed that the security firewall of the control system quickly flashed, and the active defense logo of the IDS only "wobbled" slightly. , there was no movement, as if nothing had happened. In fact, Du Jin had relied on "Xiao Ai" to control his hands, through two military contractors who had business dealings with the Air Force Command of the country M. , obtained the relevant intrusion channels, "Xiao Ai's" intrusion method completely bypassed the 'front' of all information defense systems, and drove straight in.
No code is perfect. Even though Country M has put a lot of effort into optimizing and supplementing these underlying codes, "Xiao Ai" has a logical structure cracking ability that even a quantum counter cannot match. It taught a lesson to all the military technical experts in country M, and entered the air force command system through loopholes that they could not even imagine.
On Du Jin's side, looking at the English system prompt "Identity confirmed successfully, entry allowed" on the desktop terminal screen, he breathed out gently, then picked up his right hand and shook it vigorously. This was not a pretentious action on his part, " "Xiao Ai" stimulated the nerves in his hand to make corresponding movements through the bioelectric current consistent with his body. Although he felt something too abnormal in his head, the soreness and numbness in his right hand made him seem to be unable to feel it. Because of the existence of his palm, he could only shake his hand to promote blood circulation in his hand and relieve the numbness.
While doing the relieving movements, he said to Elder Ji:
"Elder, fortunately I have fulfilled my duty. I have entered the central control system of the North-M Air Force Command. Next, I need you to figure out which step to take to contact the "reef". I think you can use the previous receiving terminal code. , simulate our signal to get in touch with Comrade "Reef"."
Everyone present looked at Du Jin with disbelief, as if the young man in front of them was like a god. Even though the screen in front of Du Jin showed that he had entered the M country's air force control system, they all had a feeling. As if in a dream, Du Jin cracked and invaded those "information fortresses" that had been declared impossible to invade by countless domestic and foreign experts in ten minutes, without even triggering a security alarm from the other party.
"Heroes are born in youth! Comrade Du Jin, I would like to thank you for your help for Comrade "Reef" and the Xia Kingdom's military!"
Elder Ji slowly stood up and solemnly thanked Du Jin. Originally, according to Elder Ji's status and age, it was impossible for him to address Du Jin with an honorific title, but Du Jin's talents surprised and valued him. He knew very well No matter how high the respect is for Du Jin, a once-in-a-century technical talent like Du Jin, he has made up his mind that after the rescue is completed, he will keep this technical wizard no matter what. It is an exaggeration to say that judging from Du Jin's current talents, although he alone cannot drive the overall information technology level of Xia State, he can definitely raise the upper limit by himself.
Others present, including the "scarface" officer who had a great prejudice against Du Jin before, couldn't help but stand up with Elder Ji to show respect to Du Jin, even though he was in charge of army operations and was responsible for information attack and defense. He didn't know much about this, but he also knew that Du Jin had truly opened the "door" to country M with just one person's ability. This was something that he could not do even if he commanded countless armored units and special forces. This made him truly respect Du Jinlai from the bottom of his heart.
Although Si Qing had been hoping that Du Jin could succeed, when this slim hope of success really appeared in front of her eyes, when it appeared in reality, she might be a happier person than Du Jin. At this time, she was disappointed with herself Her eyes were extremely happy. After all, such an outstanding man as Du Jin was now her boyfriend. This kind of pride made her extremely excited, but she also knew how much effort Du Jin had put in to achieve this. With this level of information technology, Si Qing can imagine how much blood and tears Du Jin has paid, and all of this seems to have paid off now.
Du Jin saw everyone present standing up and looking at him, and he stood up embarrassedly, while Elder Ji smiled and said to Si Qing:
"Captain Si, I am very shocked by your vision. You can discover a genius like Comrade Du Jin. Now let our hero sit down and complete this rescue operation!"
Si Qing also smiled and nodded, then came behind Du Jin and stretched out his jade hand, gently pressed Du Jin's shoulders and asked him to sit back in his seat, and then no one said anything else. After all, although the rescue was now decisive, progress, but the situation of the 'reef' at this time is also unknown. After Du Jin set the receiving terminal code provided by the deputy commander, he diverted the signals of the M country's military communication satellites in the target area, using the predetermined Frequency band signals are used to make calls, so that even if the military of Country M discovers this signal, since it is essentially sent by Country M's own military satellites, there will be no problem with signal recognition and will only be regarded as other special personnel or special operations. Dedicated signal used.
After all, those soldiers of country M would never guess that their country's satellites were providing information support and communication channels for the people they were chasing. At this time, in a barn on a farm, a man who looked very embarrassed was hiding in a Behind the shelves full of airborne farm tools, his eyes at this time did not contain much fear and despair, but more of a kind of determination. This was the agent "reef" who was avoiding the search of the M Army's special forces. He had lost contact with the Xia Kingdom headquarters for four hours. The last communications headquarters only ordered him to hide himself as much as possible and wait for rescue from other parties.
It's just that he has very little hope for rescue at this time. Although he doesn't know how large a search force the M country's military has sent, judging from the fact that it can cut off the communication between him and the Xia country's satellites, I'm afraid these Country Guy M also prepared other means to isolate himself from any contact with the outside world. Coupled with his intuition, he knew that it was only a matter of time before he was found.
"Reef" checked the ammunition of the M19 pistol in his hand. There were only 7 bullets left in the magazine. It was impossible for these bullets to help him escape into the sky. If he encountered those military hunting teams, such small caliber copper-core bullets might not be able to penetrate their body armor and helmets. At that time, it would be better to shoot himself. He knew his identity and the appalling interrogation methods of Country M. If he fell into the hands of those people In his hands, even though he is confident that he has enough perseverance to resist violent interrogation methods, "Reef" knows that he cannot resist some drugs. After all, this kind of physiological effect cannot be stopped by perseverance and faith.
"Reef" stared at the dilapidated wooden roof above his head, and the faint starlight leaked from the incomplete gaps. He thought of his lovely daughter and his wife who had warned him for a long time before going abroad. He couldn't help but shed tears:
"I'm sorry, my child. Dad may not be able to fulfill my promise to grow up with you. Xiaohui, I can only let you go on alone in the following days...... ....”
At this moment, a slightly noisy communication signal came from the earphones in his ears:
""Reef", this is the Xia State Military Command, can you hear me? Repeat, this is the Xia State Military Command, can you hear me?"
This made "Reef" who was already ready to accept death immediately cheer up. Endless joy surged in his heart. After all, he was ready to sacrifice for the country, but he still didn't want to give up his life just like that. The voice made him feel as if he had been reborn. He immediately stood up and checked the situation near the barn. After confirming that there was no M Army search team, he lowered his voice and replied:
"Headquarters, this is the Reef, the test order has been received."
Then "Reef" paused for a moment. Although he was eager to return to his motherland alive and bring back the samples and other information in his hands, in order to guard against the M Army's cunning temptation, he asked again:
"Headquarters, "Reef" requested to confirm the execution code, please send a reply from the headquarters for confirmation."
Then a slightly old voice sounded familiar to "Reef":
"Operation Code: Silence at Dawn, Comrade "Reef", you have suffered during this time!"
"Reef" naturally recognized the owner of this voice. Before leaving the country, the leader's instructions and encouragement were still vivid in his mind. He replied with enthusiasm:
"Elder Ji... "Reef" is reporting to you!"
