. In the power grid system of Shuangqing City, the worm virus was eradicated by Shi Lei twice, but it appeared tenaciously twice.

For such a situation, Shi Lei couldn't understand it at first, because Yi Shuer had obviously completely killed the internal network of the power grid system, especially during the second investigation, the relevant personnel of the General Administration of Cyber Security West and the Cyber Security Intelligence Department carried out a special investigation and killing worms.

With such a thorough killing, how could worms make a comeback?

Ling Yuguo reminded Shi Lei that the worm virus is not hidden in the network cable, the network cable has no way to store the worm, and the worm virus is hidden at the other end of the network cable - the switch!

That's right!

Worms, hidden inside the switch!

The power grid system of Shuangqing City is indeed separated from the environment of the Internet, and Shi Lei has also dealt with all the corners of the power grid system, but the springboard between the power grid system and the Internet, the security of the switch, Shi Lei did not think of it for a while.

"Damn it!" Shi Lei cursed in a low voice, hiding the worm in the switch is not a superb technology, or even a more common practice, Shi Lei just ignored it for a while.

"Huh?" Ling Yuguo heard Shi Lei's low curse and asked, "Boy Shi Lei, have you found anything wrong?" ”

"Hmmm! Uncle Ling, the worm is hidden inside the switch, I'll fix it right away! Shi Lei told Ling Yuguo of his speculation.

Subsequently, Shi Lei entered the switch of the internal network of the power grid system and inquired about the simple text of the switch. Sure enough, it was not unexpected by Shi Lei. Shi Lei found a worm in the exchange.

Shi Lei and Yi Zuer again analyzed the general signature code of the worm, and used the special killing tool written by Shi Lei. Worms in switches are being detected and killed.

Detect and kill worms on the switch, and proceed quickly. This time, Shi Lei didn't encounter any trouble, but Shi Lei didn't know that another trouble was approaching.

After a few minutes, all the switches connected to the grid system. All the killings are complete. Shi Lei has established a solid defense strategy for the switch to prevent the switch from being reinfected with worms.

Take care of the security of the switch. Shi Lei returned to the power grid system. Having lost the source of worm infection, this time, only Shi Lei needs to finish killing the worms in the power grid system again, and the power grid system can really recover to normal.

However. Forecasts are always rosy. The reality is always changing.

When Shi Lei was about to kill the worms in the power grid system, he found a helpless fact, that is, the general signature code of the worm disappeared.

Hundreds of thousands of worms, permeating the power grid system of Shuangqing City, constantly mutating and self-replicating, want to find worms one by one, and manually delete, that is almost impossible to complete.

Unless a generic signature code is found again. Or the rules of variation!

"Shi Lei, have you found a general feature code?" Ling Yuguo asked Shi Lei. The first two eradications and killing worms were too smooth, so that Ling Yuguo was full of hope for Shi Lei, or Ling Yuguo had too high hopes for Shi Lei's fictitious two security experts of Mirui Technology Group.

As the saying goes, the greater the hope, the greater the disappointment.

Shi Lei gave an answer that disappointed Ling Yuguo, "Uncle Ling, we are in trouble, and the general signature code of the worm has disappeared. We suspect that the common signature of the worm in the previous two times was just a deliberately arranged trap to delay our layout. The worm virus that broke out this time is a complete worm and does not have a universal signature code. Unless a variant rule is found, it is difficult to remove all worms at once. ”

Ling Yuguo frowned, "How long will it take to solve this time?" ”

Shi Lei sighed, "Our experts said that they don't know for the time being, and it is difficult to analyze and discover the mutation rules of the worm, and it will take more time." ”

"Alright! You try to deal with it, and our side and the Cyber Security Intelligence Division will do their best. Ling Yuguo also sighed secretly, he knew that he couldn't pin all his hopes on Shi Lei's side, they also needed to work hard.

Shi Lei nodded, responded, and then hung up the phone.

"Yishuer, analyze the source code of the worm!" Shi Lei instructed that the huge computing resources of Yizhu Ertong Guò would first parse the source code of the worm, and then Shi Lei would further analyze the mutation rules.

Nearly an hour passed in a hurry, and the time came to 10 o'clock in the evening of February 13, and at this moment, it was more than two hours before the power outage in Shuangqing City.

Shi Lei analyzed the source code of more than 100 worms, but still did not find the mutation rules of worms. However, Shi Lei has already found some clues, and there are some guesses in his heart.

But before Shi Lei had time to analyze further, Yi Shuer suddenly issued a warning.

"Sir, the monitoring system of the Emerald Building found an unknown person, and the system cannot judge the identity information of the relevant person." Although there was a power outage in the entire Shuangqing City, the security monitoring system of the Jade Building and the surrounding area, with the support of Mirui Technology Group, received the supply of electricity.

The security surveillance system of the Emerald Mansion discovered an unknown person and entered the small square where the Emerald Building was located. So, he immediately reported to Shi Lei.

Shi Lei's face changed slightly, "It's finally here!" ”

For these unknown people, who have only appeared now, Shi Lei almost guessed the reason for their tardiness, and this reason is also the power outage in Shuangqing City.

The power outage is a double-edged sword, when there is no power outage, these unknown people, because they can't find the relevant information in the Population Information and Statistics Bureau of Xia Kingdom, once they enter Shuangqing City, they will definitely be targeted by Yi Zuer.

So, when there is no power outage, they must stay outside the surveillance cameras and wait for the power outage to enter Shuangqing City. It's just a pity that after the power outage in Shuangqing City, there was a major paralysis of traffic. These guys who are ambushed outside the area covered by the surveillance cameras in Shuangqing City may have to walk or use bicycles to enter Shuangqing City.

It was precisely because of the power outage that these unknown personnel appeared in the Emerald Building more than two hours after the power outage.

"Yishuer, start killing!" After Shi Lei gave the order to Yi Shuer, he continued to devote his energy to analyzing the worm mutation rules.

In the small square where the Emerald Mansion was located, more than a dozen unknown personnel wearing black combat uniforms rushed towards the Emerald Building. If you have night vision, you can see that they are holding a pistol with a muffler in their hands. And, around their necks, there were assault rifles with mufflers.

Yi Shuer had already laid out automated warfare weapons in the Emerald Mansion. Five improved second-generation steel horns and five improved first-generation shadow dragons are ambushed on the roof of the Emerald Building.

When the monitoring system of the Emerald Mansion discovered an unknown person and stepped into the small square of the Emerald Building, Yi Shuer reported to Shi Lei at the same time that the automated war weapon had been activated.

Whether it is the second-generation Steel or the first-generation Shadow Dragon, due to the electrification design and silent design, their flight noise is very small.

Ten ferocious unmanned aerial vehicles, equipped with fourth-generation electromagnetic cannons, aimed at unknown people on the ground in the air.

'Failed to confirm the target's identity for the second time, and is automatically determined to be an unknown person...'

'Image recognition engine information confirms that unknown personnel are equipped with thermal weapons and are classified as dangerous...'

'Kill clearance confirmed, confirmed complete, system administrator authorized to do so...'

'Count down to three seconds, turn on kill mode, and expect the battle to end in seventeen seconds...'

Inside the advanced pseudo-artificial intelligence system, the system makes logical judgments, and then turns on the killing mode. Ten automated warfare weapons suspended in the also control zhì, firing almost at the same time.

The fourth-generation electromagnetic gun is comparable to the power of a medium sniper rifle, and it also has an advantage in terms of the initial velocity of the projectile.

A flurry of compressed air sounds rang out, not attracting anyone's attention at all. But on the ground, ten unknown personnel wearing black combat uniforms suddenly fell to the ground.

'The number of targets killed is confirmed, a total of ten targets are killed, and the kill rate is 100%...'

'Lock on target complete, ready to start the second round of kill targets...'

Although it may seem like it takes a long time to describe it, in fact, this time is at the level of milliseconds, when the first round of fire from the fourth-generation electromagnetic gun is followed by the second round.

Of the nine remaining targets on the ground, only one escaped when they withstood the second round of attacks.

'Kill target count confirmed, kill a total of eight targets, escape one target, send EBI-03 and EBI-04 in pursuit...'

EBI is the first generation of the improved Shadow Dragon, and the code name in the internal system of Eater is only used by Eater. With Yi Zuer's logical judgment, it was completed in less than 10 milliseconds, that is, one hundredth of a second, and the two shadow dragons tracked down the unknown person who had escaped.

When the two shadow dragons and the fleeing unknown personnel had a suitable shooting angle, Yi Shuer did not hesitate to use the fourth-generation electromagnetic cannon.

When the last unknown individual fell to the ground, the logical judgment information appeared again in the internal system of Yishuer.

'The battle is over, destroy 19 unknown personnel, consume 17 seconds, predict correctly, report to the system administrator...'

"Sir, the intrusion crisis of the Emerald Mansion has been resolved, and the system has killed a total of nineteen unknown personnel, the following is the location where nineteen unknown personnel were killed, please provide a handling plan." The location of the bodies of nineteen unidentified individuals was revealed in the LIP lens information processor.

Shi Lei shook his head and said nonchalantly: "Don't deal with it for the time being." ”

The invasion of the Jade Mansion was easily solved by Yi Zuer, but Shi Lei analyzed the mutation rules of the worm virus, but encountered big trouble!.

(To be continued......)

PS: The day after Christmas, how many people were eaten bananas in the name of eating apples