Desperate Hacker

Chapter 56 Turns out to be Lua
"You're back, how's it going?"

When Chen Qingfeng opened the door and came back, Zhao Changan was frightened.It is estimated that this kid has not recovered from the dream-like crisis last night.

Chen Qingfeng looked around the room. All the curtains were closed.

He thought again that keeping the curtains open in broad daylight might arouse suspicion.

So he slowly opened the curtains by the window.

"How is it?"

"Those people are still following us, they know our every move!"

"Ah? What did you say?"

"Don't get excited!"

Chen Qingfeng said, first walked to the kitchen and poured himself a glass of water.

Then he drank it all in one gulp, then took out the USB flash drive from his pocket and placed it in front of Zhao Changan.

"What is this?"

"Those people gave it to me when I came back. They said they wanted me to get this thing done! There should be a copy of the computer virus in it!"

"Virus? Can you handle this thing?"

"Let me try it first! After all, computer viruses are also programs, just programs that are deliberately destroyed. As long as it is a program written by humans, there must be a way to solve it!"

Chen Qingfeng sat on the sofa and stared at the USB drive calmly.

Based on the circumstances in which those people drove Tomdin to death last night.

At least he knew one thing, those people were being polite to him now.Just because they want something from themselves.

If you can't handle the virus in the USB flash drive, those people may turn against you.

How do you think they would treat someone who knew their secret but was of no use to them?

Chen Qingfeng picked up the USB flash drive and walked into the room. First, he had to set up an environment on his computer to prevent viruses from infecting his own equipment.

Zhao Changan was also very curious about how Chen Qingfeng dealt with computer viruses?

Chen Qingfeng thought for a while, suddenly opened the cabinet, and took out a host that was as big as a TV box.

"what is this?"

Zhao Changan asked curiously.

"This is an industrial computer. You can think of it as a small computer. It's relatively cheap. I'll buy it and use it as a router myself!"

Chen Qingfeng connected the industrial computer to the computer screen, and then began to build the environment inside.

First, he has to isolate the virus file!Secondly, he needs to download some decompilation tools.

What is decompilation?

In principle, any program written in a high-level language can obtain the original code from the program through decompilation.

This work is called reverse engineering.

Of course, some people study reverse engineering, and some people study anti-reverse engineering.

This is a complex job that requires many tools.

And Chen Qingfeng hasn't done this kind of thing for a long time.

To analyze computer viruses, you must first establish a virtual isolation environment to prevent viruses from infecting the main computer system.

Secondly, he needed to prepare some anti-malware tools, but Chen Qingfeng estimated that the virus stored in the USB flash drive given to him by the Middle Easterners would not be that simple, so he had to block the virus.Then there are network monitoring and some packet capture tools.

See which networks this virus is accessing and what information is being sent out?
In addition to decompilation technology, Chen Qingfeng has not touched it for a long time.

Yixi remembered that when he was a graduate student, Chen Qingfeng had put a lot of effort into this aspect.This reminded him of the interesting story Ding Jiancheng mentioned when we had dinner together today.

……

13 years ago...

"Oh! Who designed this software? It's too perverted! Isn't it just an English listening and reading program? Just let him leave it alone. He can't even listen to some songs in class or read novels!"

"That's right! Look who's in front of you?"

"Isn't that Chen Qingfeng?" "Chen Qingfeng? The software in our English class is too perverted. Is there any way to speed up the listening and reading time?"

Chen Qingfeng heard someone calling him from behind, so he quickly turned around.But they saw that it was Liu Yiyue, the flower of their department.

"Chen Qingfeng? If you get it done, our beautiful lady Liu wants to treat you to dinner!"

"I hate it, who said that?"

Listening to the two girls joking with him, Chen Qingfeng silently took out the USB flash drive from his pocket.Then he put his finger in front of his lips and made a silent gesture.

"No, do you really have a way?"

"Of course, only fools keep moving the mouse! I just set the time forward, so I don't have to attend the next class!"

Chen Qingfeng proudly held the USB flash drive in his hand and walked into the classroom.

After class, everyone sat in front of the computer and put on headphones. The teacher asked everyone to log in and then left.

Then the sound of everyone learning English came from the classroom.

Now that I have reached the postgraduate stage, my English classes are still very tight.

After Chen Qingfeng saw the teacher leaving, he silently inserted the USB flash drive into the computer.

Then his fingers jumped on the keyboard, and after a while the time progress displayed in the lower right corner began to gradually increase according to his thoughts.

But he didn't dare to add too much, after playing forward for an hour.It stopped immediately.

However, at this moment, Chen Qingfeng suddenly felt someone tapping his shoulder gently from behind.

He turned around and saw Liu Yiyue's beautiful face.

"Can you use it for us? Has it been successful?"

"nailed it!"

"Great!"

So Chen Qingfeng pulled out the USB flash drive and handed it to Liu Yiyue behind him.

Then he took off his headphones and listened to the compliments coming from behind.

"As expected of Chen Qingfeng, he can even change the school's English teaching software!"

"We are both majoring in computer science. Why are we so different? Who knows how he did it?"

Chen Qingfeng responded silently in his heart.

"You fool, you don't understand reverse engineering and decompilation? How did you get into graduate school?"

……

The progress bar on the monitor shows that the virtual machine has been loaded.

Chen Qingfeng shook his head, as if to clear out all the unpleasant memories from his mind.

When the USB flash drive was inserted into the data reading port, there were several files lying quietly inside.

However, Chen Qingfeng knew that things would not be as simple as they seemed.

Soon packaging tools and network monitoring tools both experienced abnormal fluctuations.

But it doesn't matter, everything is under Chen Qingfeng's control.

He first used a packet capture tool to analyze it, and then unexpectedly discovered that the virus actually tried to access a darknet address.

Fortunately, Chen Qingfeng was not connected to the Internet, so he started to analyze the virus files through the imitation compilation program, and soon found several LUA scripts in them.

"LUA, isn't this the scripting language used to make games?"

Zhao Changan looked at the script file in the folder in surprise. Based on his knowledge, he always felt that making viruses would not use game tools.

Chen Qingfeng was actually surprised. He didn't expect that the virus in the USB flash drive used such a simple thing.

However, Chen Qingfeng knew that the simpler something looks, the more complex its inner structure is.

　The collection has indeed been affected, and I feel like the negative reviews are organized!

　　
　
(End of this chapter)