Chapter 63: An Unbelievable Wizard

Du Jin turned around and pointed to the huge display screen on the wall behind him, looked at the satellite exploration photos on the screen that were occupied by a huge halo and said:

"Since we can't use our satellites for reconnaissance and communication, and we can't crack the specific signal frequency bands in this area, then I can solve the problem at the root, that is, by directly and covertly invading the air force command system of country M, we can not only use the signals of the other side to get in touch with the "reef", but also get the distribution and number of its search troops from the existing intelligence of the M army, and then prepare for the withdrawal of the "reef" after that. ”

The people present were still silent, the solution Du Jin said was indeed that they did not take into account, as the so-called "capture the thief and capture the king first", if it succeeds, then the results will undoubtedly be amazing, not to mention the rescue of the "reef", and even some other military information, which is undoubtedly very valuable for the Xia Kingdom, which is at a certain disadvantage in terms of air power.

It's just that the premise of all this is that the invasion can be successful and can evade the inspection of the information operations department of country M, otherwise all this is empty talk, after all, no matter how good the dream is, what is the use of not coming to reality?

Si Qing also found the 'difficulty' of Du Jin's plan, if someone else said this idea, she was afraid that she would refute this "whimsical" behavior as soon as possible, but for Du Jin, she could only use trust as much as possible to suppress the confusion in her heart, and Elder Ji, as one of the actual controllers of the military, was involved in both invasion and anti-invasion, and he naturally knew the difficulty of invading the command system of the M Army Air Force.

At present, the military system of country M mainly uses the intrusion detection system, that is, "IDS" and security firewall to form a defense system, and the role of "IDS" is very important, it is a kind of network transmission for real-time monitoring, in the discovery of suspicious transmission when the alarm or take active response measures of the network security equipment, it is different from other network security equipment is that IDS is a proactive security protection technology.

It monitors the system in real-time and warns if an anomaly is detected. According to the different information sources and detection methods, it can be divided into several categories: according to the information source, it can be divided into host IDS and network-based IDS, and according to the detection method, it can be divided into abnormal 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.

Analyzing events to detect security policy violations is a core function of an intrusion detection system. Technically, intrusion detection falls into two categories: one based on flags and the other based on anomalies.

For flag-based detection techniques, the first step is to define the characteristics of an event that violates a security policy, such as certain header information of a network packet. Detection is focused on determining whether such features are present in the collected data. This method is very similar to antivirus software.

On the other hand, anomaly-based detection technology first defines a set of values for the "normal" conditions of the system, such as CPU utilization, memory utilization, file checksums, etc., and then compares the values of the system running with the defined "normal" conditions to determine whether there are signs of attack. At the heart of this approach is how to define what is meant by what is called "normal".

There is a big difference between the methods and conclusions of the two detection techniques. At the heart of mark-based inspection technology is the maintenance of a knowledge base. It can report the type of attack in detail and accurately for known attacks, but it has limited effectiveness against unknown attacks, and the knowledge base must be constantly updated. Anomaly-based detection technology can't pinpoint the modus operandi of an attack, but it can identify a broader range of attacks, even undetected.

Of course, 'IDS' also has a disadvantage, due to the rapid development of contemporary networks, the network transmission rate is greatly accelerated, which causes a large burden on IDS work, and also means that IDS is not very reliable for attack activity detection. When IDS responds to its own attacks, the detection of other transmissions will also be suppressed, which means that IDS will make false alarms for some high-speed control signals, but now whether it is country M or Xia, or other countries that adopt this security protection method, IDS has basically been improved to adapt to the current network attack and defense situation.

In short, whether it is Xia or M, they have not given up on cracking and invading the other party's military system, but there has been no breakthrough on both sides, and Du Jin is now standing up and saying that he has a way, for Elder Ji, part of it is shocked, and the other part is incredulous, he looked at Du Jin and said:

"If this method can be realized, it can indeed solve the current dilemma, but our current world is very urgent, and if we have information experts and related equipment, we will miss the opportunity to rescue......................"

The subtext of this sentence is that Du Jin should not say some unattainable ways to "pretend", it is better to propose some practical methods, and Du Jin responded without thinking:

"Elder, I don't need other auxiliary personnel or auxiliary equipment, you just need to give me an operating equipment that can be connected to the external network and has enough computing power to support it, I am ninety percent sure that I can get the results we need without attracting the attention of country M, and it won't take too long."

Listening to Du Jin's confident words and assurances, although Elder Ji still didn't believe it in his heart, he didn't directly refuse, and after thinking for a while, he said to the deputy commander on the side:

"Physically and data-cut off a part of the terminals on the command desk, assign two service units to that terminal, and then connect to the external network through the booking data interface, and let this Comrade Du Jin give it a try."

After that, the deputy commander acted without any doubts, and then Elder Ji turned his head to look at Du Jin's eyes, Du Jin's eyes seemed to reveal an energy that could reach his soul directly, making Elder Ji's heart couldn't help but believe in Du Jin's ability, but he still said to Du Jin:

"Okay, let's try it according to what you said, Comrade Du Jin, but one thing to pay attention to, if the intrusion is discovered by the other party, you must stop the connection with external data before the other party carries out reverse intrusion and intervention, some secrets here are not allowed to be divulged, although I have prepared for the worst-case scenario, but I don't want this worry to come true, how about it, are you still sure now?"

Du Jin still nodded seriously, he had already confirmed with "Xiao Ai" that there would be no problems, even if there was a problem that could not be controlled for a while, as long as he found a way to connect "Xiao Ai" to the intrusion device by means of physical connection, then everything would be solved, it is undeniable that country M started outrageously early in the field of data security, it can be said that when the vast majority of countries on the earth were still engaged in telegraph and the first generation of calculators, it began to prepare for security defense, And the results of this advantage are naturally significant, even the current Xia State, or the former Red Big Brother, has not completely broken through the information security barriers of the military of Country M in a real sense.

The efficiency of the Xia military is absolutely unique in the world, after less than ten minutes, all the equipment and conditions required by Du Jin have been prepared, and then under the gaze of everyone, Du Jin sat in front of the prepared desktop terminal, and then used the touch keyboard on the screen to operate with one hand with his right hand, this move made the scene including Si Qing and other people were stunned for a moment, Du Jin's performance of "pretending to be forced" undoubtedly achieved far beyond expectations, and absolutely shocked the cognition of the people present. After all, the ability to confidently and quietly invade the command system of the Air Force of Country M is already very outrageous, and now it is unbelievable to operate it with one hand.

And Du Jin also looked up at the right time and explained:

"Ahem........ Since I just had a major surgery in the morning, my other hand is a little uncoordinated, so I only use my right hand to work, but don't worry, this will not affect my success rate too much, but it may slow down a little. ”

After hearing this, Si Qing and Elder Ji had a higher evaluation of Du Jin in their hearts, after all, when Elder Ji agreed to Du Jin to come here, he had already investigated Du Jin's identity, and naturally knew about the attack that occurred during the day, that is, he was grateful to Du Jin for risking his life to save his granddaughter, so he made an exception and agreed to Si Qing's idea of bringing him here, and Si Qing's heart at this time was full of self-blame and emotion, Du Jin's dedication made her love for Du Jin in her heart reach a peak, for the first time, Si Qing put Du Jin and his responsibility to the family in a position, if it is someone who knows Si Qing, they will know how high Du Jin's status is in her heart at this time.

Although Si Qing is not the kind of simple girl who gets dizzy as soon as she falls in love, she is her first love after all, and she is the kind of character who will not give up easily if she doesn't love, even if she has not been with Du Jin for a long time, but the three years of previous acquaintance and contact have become the cornerstone of their relationship, which is extremely solid.

.....................................

At the same time, in the command center of the North-M Air Force, several information monitoring personnel sat leisurely in front of the information terminal as usual, drinking coffee and talking about gossip in daily life, radar, satellite status, airspace recognition and other equipment were in a very calm state, one of the technicians named Mai Lei smiled and said to their colleagues:

"I don't know who those guys in the army are going to arrest this time, so let's cooperate with the air force."

A woman with a seductive figure wrapped in a military uniform on the side said indifferently:

"Mai Lei, you don't have to worry, we have blocked almost all the signals in that area by our strategic information support aircraft, except for our internal communication signals, it is impossible to get in touch by any other means, and the Star Dou satellite of Xia Guo has also been blinded by us, and now I am afraid that we are all busy! Hahaha. ”

Another technician chimed in:

"Haha, Leila, you're right, those Xia people want to really bypass our joint blockade, just wait for the next life! Hahaha, maybe when we're done with this cup of coffee, the little mouse will be found, and we'll be able to leave work early. ”

"Uh-huh."

And when these people were talking and laughing, and evaluating Xia Guo's technical level with some mean words, none of them noticed that the security firewall of the control system quickly flashed, and the IDS active defense logo only "shook" slightly, and there was no movement, as if nothing had happened, and in fact, Du Jin had relied on the control of "Xiao Ai" to his hands, and obtained the relevant invasion channels through two military contractors who had business dealings with the Air Force Command of Country M, "Xiao Ai" The intrusion method is to completely bypass the 'front' of all information defense systems and drive straight in.

No kind of code is perfect, even if country M has put a lot of effort into the optimization and supplementation of these underlying codes, but in the "Xiao Ai", a logical architecture cracking ability that even quantum counters can't reach, has taught a lesson to all military technical experts in country M in an instant, and entered the air force command system from loopholes that they can't imagine at all.

On Du Jin's side, looking at the English system prompt on the desktop terminal screen "Identity confirmation is successful, allow entry", he exhaled lightly, then picked up his right hand and shook it vigorously, this is not his pretending action, "Xiao Ai" stimulates his hand nerves through the biocurrent consistent with his body to make corresponding movements, although his head feels something too abnormal, but the soreness of his right hand makes him seem to not feel the existence of his palm, Therefore, he could only shake his hand to promote the blood flow in his hand and relieve the tingling sensation.

While doing the relief action, he said to Elder Ji:

"Elder, fortunately, I have entered the central control system of the North-M Air Force Command, and then I need you to see which step to start contacting the "reef", I think you can use the previous terminal code to simulate our signal to get in touch with the "reef" comrades. ”

Everyone present looked at Du Jin with an unbelievable look, as if the young man in front of him was like a god, even though the screen in front of Du Jin had already shown that he had entered the control system of the Air Force of Country M, but they all had a feeling as if they were in a dream, those "information fortresses" that were asserted by countless domestic and foreign experts that could not be invaded were cracked and invaded by Du Jin in ten minutes, and they did not even trigger the other party's security alarm.

"What a hero! Comrade Du Jin, I thank you for your help for Comrade "Reef" and the Xia State military! ”

Elder Ji slowly got up and thanked Du Jin solemnly, originally according to Elder Ji's status and age, it was impossible for him to use an honorific title for Du Jin, but Du Jin's talent made him greatly surprised and valued, he knew very well that for Du Jin's kind of once-in-a-century technical talents, no matter how high the respect was, it was not too much, and he had already made up his mind in his heart that after the rescue was completed, he would leave this technical wizard no matter what, it is not an exaggeration to say that from the talent that Du Jin has shown now, Although it is impossible for him alone to drive the overall information technology level of Xia Kingdom, he can definitely raise the ceiling by himself.

The other people 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, although he was in charge of army operations and didn't know much about information attack and defense, but he also knew that Du Jin only relied on the ability of one person to open the "door" of country M in a real sense, this kind of thing that he couldn't do with countless armored forces and special forces, and even let a young man who he thought was here to "make up the numbers" and "take favor" did it, This made him really respect Du Jinlai from the bottom of his heart.

Although Si Qing has been looking forward to Du Jin's success, but this kind of hope for success really appears in front of her eyes, when she appears in reality, maybe she is a happier person than Du Jin, she is extremely glad of her vision at this time, after all, Du Jin is such an excellent man is now her boyfriend, this pride makes her extremely excited, but she herself knows how great Du Jin's efforts are for this, to achieve this level of information technology, Si Qing can imagine how much blood and tears Du Jin has paid, And it all seems to be paying off now.

Du Jin watched everyone present get up and look at him, he also stood up embarrassedly, while Elder Ji said to Si Qing with a smile:

"Captain Si, I am very shocked by your vision, you can dig out a genius like Comrade Du Jin, now let our heroes 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 shoulder to let him sit back in his seat, and then everyone didn't say anything, after all, although there has been decisive progress in the rescue, but the situation of the 'reef' at this time is also unknown, Du Jin set the terminal code provided by the deputy commander, and then diverted the signal of the military communication satellite of country M in the target area, and used the predetermined frequency band signal to call, so that even if the military of country M found this signal, Since it is essentially also emitted by country M's own military satellites, there will be no problem with signal recognition, and it will only be used as a special signal for other special personnel or special operations.

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, and at this time, in the barn of a farm, a man who looked very embarrassed was hiding behind a shelf full of airborne farm tools, but his eyes at this time did not have too much fear and despair, but more of a determination, this was the agent "reef" who was hiding from the search of the special forces of the M army, and he had lost contact with the headquarters of Xia Guo for 4 hours. The final communications headquarters only told him to hide himself as much as possible and wait for help from other quarters.

It's just that he has very little expectation for rescue at this time, although he doesn't know how large the search and arrest force is sent by the military of country M, but from the point of view that he can cut off the communication between him and the satellites of the Xia country, I am afraid that these country men have prepared other means to cut off any contact between themselves and the outside world, plus his intuition, he knows that it is only a matter of time before he is found.

"Reef" checked the ammunition of the M19 pistol in his hand, there were only 7 bullets left in the magazine, these bullets could not help him escape from the ascension, if he encountered those military search and arrest teams, this small-caliber copper-core bullet might not be able to penetrate their body armor and helmets at all, at that time it was better to give himself a shot, he knew his identity and the appalling interrogation methods of country M, if he fell into the hands of those people, even if he was confident that he had enough perseverance to resist violent interrogation methods, but for some drugs, "Reef" knows that it cannot resist, after all, this physiological effect cannot be broken by perseverance and faith.

"Reef" stared at the dilapidated wooden roof above his head, the faint starlight leaking through the cracks, and he thought of his lovely daughter and his wife, who had told him for a long time before leaving the country, and he couldn't help but cry:

"I'm sorry, my child, Dad may not be able to fulfill my promise to grow up with you, Xiaohui, the next few days can only let you go alone.................."

At this moment, a slightly noisy communication signal came from the headphones he was wearing:

""Reef", this is the military headquarters of the Xia State, can you hear me? Repeat, this is the military headquarters of the Xia Kingdom, can you hear me?"

This made the "reef", who was already ready to accept death, immediately cheer up, and 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 like this, and the voice in the headphones made him feel like he had regained his life, he immediately got up to check the situation near the barn, and after making sure that there was no M army search team, he lowered his voice and replied:

"Headquarters, here" reef ", has received an order for testing. ”

Then "Reef" paused slightly, and although he longed to return to his homeland alive and bring back the samples and other information in his possession, he asked again in order to prevent the cunning temptation of Army M:

"Headquarters, "Reef" requests execution code confirmation, and requests headquarters to confirm the return order. ”

Then a slightly old voice came out that made the "reef" feel familiar:

"Code of Action: Dawn Falls, Comrade Reef, you have suffered all this time! ”

"Reef" naturally recognized the owner of this voice, and before leaving the country, the leader gave him instructions and encouragement were still vivid, and he replied with eagerness:

"Elder Ji.......... "Reef" reports to you! ”