Villain’s Programming - Chapter 209



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Episode 209: Mistaken Expectations

The reason Dojun created a hacking program in his past life, a program that caused DDoS to be exact, was simple.

‘Chinese guys hacked so much that they created security logic and ended up creating a hacking program.’

Programmers, especially server programmers, always do something called ‘stress testing.’

It was a test that created an overload by connecting many virtual clients to the server in a very short period of time.

The test was to create over a thousand virtual client connections to a single server in a few seconds to see whether the server would hold up and what functions would fail.

It was the same with Dojun. Now that he had created the security logic to prevent Chinese hacking, he had to test it.

Since we couldn’t ask Chinese hackers to hack us, we created a program to cause DDoS ourselves.

‘After I first created it, I was testing it without knowing anything and there was a time when the company’s computer network was paralyzed. Fortunately, Team Leader Yang stopped me, so it ended with just one letter of apology, but if I had done something wrong, I could have been fired.’

That’s how Dojun created the DDoS program, DT-01. The meaning of DT was also simple. It was an abbreviation for DDoS Test.

DT-01 was not used by anyone except Dojun. If used incorrectly, a big problem could occur, and the code was written so that only Dojun could read it, so even if anyone looked at it, they couldn’t understand it.

Just like that, Dojun’s DT-01 disappeared from people’s memories. But one day, DT-01 spread throughout Korea.

‘It was because of Team Leader Yang. ‘I asked to be able to use it for the Battle of Gyeongin.’

A war began between Japanese and Korean netizens, but Dojun did not pay much attention. However, it was not team leader Yang Ha-seong.

He actively participated in the preparations for the Battle of Gyeongin, and later asked Dojun to allow him to use ‘DT-01’.

– You need this? hmm… All right.

It took less than 5 seconds for Dojun to give permission. It was a roughly created program for testing purposes anyway, and I received a lot of help from team leader Yang Ha-seong, so it wasn’t difficult to hand over the program.

‘But a problem arose. While distributing and testing DT-01 to those participating in the Battle of Gyeongin, a request for a feature update came in.’

In the end, Dojun accepted their request and even created the DT-03 version. At that time, Dojun’s name began to spread among programmers.

After that, March 1, 2010. The Battle of Gyeongin began.

Dojun, who had suddenly become the leader of Japanese hacking, hacked the name server of Japan’s 2CH, and 100,000 netizens across the country followed suit and began attacking.

‘In less than an hour, Japan’s 2CH was paralyzed. Japan’s damage was enormous. Almost the entire server was paralyzed, and one physical server was permanently in an unrecoverable state.’

That wasn’t all. Five servers lost all their data.

‘The highlight of all this was hacking so that the Korean flag was visible when connected to Japan’s 2CH. Well, I don’t know if he’s doing well.’

Dojun later found out who the person who hacked into the Japanese server and planted the Korean flag was through an article.

‘I was dumbfounded when I found out that he was a middle school student. Then that guy… He’s still a middle school student, so is he going to plant the Taegeukgi again?’

The Battle of Gyeongin ended in a great victory for Korea.

Afterwards, Japan was devastated and went on a rampage to seek revenge on Korea, but Korea had already completed all preparations for Japan’s attack.

“ha.”

Do-jun smiled faintly as he recalled what had happened in his past life, and then sighed.

‘Should this cadet make a hacking tool like in my previous life?’

In order not to change history, he had to create his own hacking tool like in his previous life.

‘But if I intervened until now, history would have changed significantly.’

That wasn’t the only worry.

“The real problem is something else.”

Dojun typed ‘GUARD CAT’ into the internet search box. When the address appeared, he clicked to enter the homepage.

GUARD CAT was a computer security company created by Dojun and Annie. The company’s main page appeared and the products for sale appeared.

[Are you worried about DDoS? By using the ‘scrubbing’ system created by our GUARD CAT, you can be free from DDoS problems.]

It was a ‘shield’ that could block even the DDoS program created by Dojun in his past life, and was the main product of ‘GUARD CAT’.

In other words, it was a product that should never be breached.

* * *

Kim Dong-jin was very satisfied with his life these days.

Dong-jin was the team leader of the Pluto server team at Raonzena until a few months ago, but moved to Black Cat Studio at Do-jun’s suggestion.

‘I finally got to do a new project! Coming out of Pluto after 8 years!’

When Dongjin joined Raonzena, he planned to stay for three years and then move to another company.

‘At that time, I thought I should play in bigger water, not Laonzena. But that was just my delusion.’

Kim Dong-jin put the coffee mix in a paper cup and poured hot water. He stirred the paper cup with the coffee mix bag and took a sip.

‘Of course this taste is the best.’

Others say it’s a special place and iced Americano is the best, but for Dongjin, this was the best.

“uh! Hello Dongjin. “You came early?”

Just then, Dojun entered the company and said hello to Dongjin. Dongjin also hurriedly said hello.

“Hello, CEO.”

“I told you to be as comfortable as before when we’re alone, right?”

Dongjin chuckled at Dojun’s words. Because it reminded me of old times.

‘One day, Dojun’s rank was higher than mine. Was he a part leader at that time? Yes, I did. When it was just the two of us, we kept quiet, and when other people were around, we used honorifics.’

“But how can that be, since then and now are different?”

“Eight. “What can’t you do?”

Dongjin said.

“Okay, then.”

“haha. “Yes, you can do it, right?”

Dongjin shook his head.

“It’s done. “I’ve said it once, so that’s enough.”

Dojun looked at Dongjin with strange eyes.

“Has it changed a lot?”

“Eight years have passed. And I haven’t changed. “Did I tell you last time why I’ve been on the Pluto server for eight years?”

Do-jun recalled the time when he brought Dong-jin.

‘I said I would come after I completely digested the Pluto online server source code.’

Fortunately, it didn’t take long.

‘The conditions for joining the company were absurd. I was wondering if the server technology produced by Black Cat Studio is higher than Pluto… … . ‘If you don’t have anything to learn, there’s no reason to change jobs.’

Dojun looked at Dongjin. Unlike other people, his eyes were looking straight at him.

‘Dongjin, you think of me as a wall to overcome, not a representative.’

Dojun was so glad to see Dongjin like that.

“I remember everything. As for the employment conditions you mentioned. I asked for a chance to see a server program with higher technology than Pluto Online. He also asked for permission to view all sources within the company. Do you want to start a company later?”

Dongjin said after taking a look at the black cat.

“The CEO is so talented in business that he was able to start and grow a company like this in just 8 years. Not only here, but there is also a Gold Circle, right? After seeing that, I gave up trying to beat the CEO with my entire business. but… It’s not a program. I will learn all of the CEO’s techniques and someday I will definitely win. “That is my goal.”

Dojun felt really good.

‘Dongjin, this guy seems to have changed, but he hasn’t.’

“Yes, definitely do that. “If you need my help, please let me know anytime.”

“All right.”

Dongjin looked at Dojun’s back as he entered the representative office.

‘Time flies so fast. When CEO Hwang Do-jun first joined the company, he tried to be treated as a senior because he joined the company a week earlier. ‘Now it’s between the CEO and the employees.’

At first glance, it seemed like Dongjin wasn’t enough, but that wasn’t the case.

Dongjin, who has digested all of Dojun’s sources for eight years on Pluto Online, has created his own program style by mixing his own know-how.

Dongjin has quickly become one of Korea’s leading server programmers. Last year, he went to ‘GDC’ and gave a lecture.

‘It was after GDC that I accepted CEO Hwang Do-jun’s proposal. And I became the server team leader for the Goguryeo project.’

Goguryeo Project was a console game. Originally, there wouldn’t have been much need for a server, but Dojun was planning to introduce ‘multi’ content. So a server was definitely needed.

After moving from Laonzena to Black Cat, Dongjin worked overtime every day. It had to be that way.

‘This is heaven.’

There were a lot of sources of incredible quality.

‘This is the skills of the current CEO Do-jun Hwang, CTO Ha-seong Yang, and Min-ho Kang.’

I couldn’t help but admire the server created by three of Korea’s best programmers.

Dongjin learned and learned again. And two months after she joined the company, she started coding. She started creating the Goguryeo Project game server.

He created his own server frame on a blank sheet of paper, defined the protocol, and created the server.

‘When this project is completed, it will be able to surprise not only China but the world.’

Dongjin did his best every day.

‘But it looks like the CTO is busy these days?’

I roughly knew what was happening. We had lunch together a few days ago, and I heard it then.

‘You said you were preparing for a cyber war with the Japanese, right? He said we would participate together when the time comes.’

Normally, Dongjin would have participated, but there was no time now. There was still a mountain of server code to learn.

‘Anyway, I don’t know if Team Leader Yang found a programmer. You said you were looking for a programmer to create a special DDoS. Should I ask alumni of Seoul National University’s computer engineering department?’

Dongjin, who thought of DDoS, suddenly thought of a special Pluto online source. It was a program that caused DDoS.

‘It was called DT-01, right? It was a source that no one was interested in. It was not a game server source, nor was it a game-related tool. I wasn’t interested either, but when I found out that CEO Hwang was the one who made the sauce, I became interested.’

Dongjin analyzed the source. And she was shocked to find out that it was a hacking source.

‘It wasn’t made in earnest, it seemed like it was just made for testing purposes, but the level was high. So much so that it took nearly a month just to analyze it.’

Dongjin grinned as he remembered that time.

‘Shall I inform Team Leader Yang of this? Since it was created by the CEO anyway, I don’t think there will be any problem in using it as long as you get permission.’

After pondering for a moment, Dong-jin sent an email to Yang Ha-seong and started coding again.

‘Okay, shall we create a login system today? The DB is set to MYSQL.’

Dongjin was just about to turn on Visual Studio and start coding.

“huh?”

Suddenly the network stopped working.

‘Is the LAN cable missing?’

I lowered my head and looked at the back of the computer, but the LAN cable was plugged in well.

And Kim Dong-jin was not the only person experiencing such symptoms.

“uh! “The computer stopped working?”

“I can’t connect to the server.”

“I am… A blue screen appeared. “I didn’t do anything!”

“what?”

The whole company was buzzing. Kim Dong-jin frowned.

‘What on earth is going on? Did you catch the virus as a group?’

Dongjin immediately tried the vaccine. But the antivirus started working and then stopped.

‘What, a real virus?’

It was then. CTO Yang Ha-seong ran over and shouted at Dong-jin.

“Dongjin, you’re in big trouble!”

“I know. All of the company’s computers stopped working. Still, this can be handled easily… … .”

“no! It can’t be processed! The Japanese… “The Japanese attacked our company!”

“yes?”

Surprised, Dongjin immediately went into an emergency situation. We disconnected from the external network and investigated the servers that had problems.

The condition was serious. The most serious thing among them was the condition of the sauce.

‘My sauce! ‘All the sauce I made 10 days ago is gone!’

Dongjin bit his lip until it bled. Sauce was Dongjin’s pride, life, and purpose for living.

“CTO, the Japanese did this?”

“huh.”

Dong-jin said while looking at Yang Ha-seong.

“Please allow me to participate in that war. I will never, ever let you go.”

* * *

Dojun was surprised to receive CTO Yang Ha-seong’s report.

“yes? “Is Japan attacking our company?”

“Yes, it’s not just our company. “All major gaming companies in Korea were attacked.”

Dojun answered with a serious expression.

“What about the damage?”

“The source server is down.”

Dojun pursed his lips tightly. The assets of not only game companies but all IT companies were ‘sources’.

If the source disappeared, everything literally disappeared.

“Is the sauce okay?”

“The original source is in poor condition. Somehow, the Japanese took down the physical server completely. It even made the data unusable. But the backup source is alive. There’s a bit of a problem… “Experts say that recovery is possible if you give it time.”

Dojun breathed a sigh of relief.

“thank god. First of all, CTO, please do your best to restore the source.”

“All right. but… Are you going to just let this happen?”

Dojun grinned at CTO Yang Ha-seong’s words.

“Do not worry. “I will enter this war.”

Yang Ha-seong’s eyes widened at Do-jun’s words. The best programmer and hacker Yang Ha-seong knew was Do-jun.

“thank you. I already wanted to ask you a favor, but I couldn’t because you seemed busy. I feel relieved now. “Then I will just focus on restoring the source.”

When Yang Ha-seong left, Do-jun looked at the calendar hanging on the wall.

‘February 27th. ‘I’m different from my previous life.’

In a previous life, Japan already knew that Korea was hacking on March 1st.

So they attack Korea on February 28th, one day before March 1st. However, their attempt was defeated very easily.

‘The portal companies blocked all Japanese IPs, so all Japanese attacks were in vain.’

Dojun frowned.

‘That’s why I don’t understand anymore. Japan, which fought against Korea in a previous life without even IP bypass technology, broke through our company’s defense system?’

All companies related to Dojun, including Black Cat, were applying the ‘GUARD CAT’ defense system.

‘Right now, our company’s defense system is the best. It can never be broken through with normal methods. But you broke through this? Japan?’

Dojun shook his head. This could never have been possible with Japan’s technological capabilities of this era.

‘no way… Has history changed something here too?’

When Dojun was thinking that, his cell phone rang. I checked and it was the animation of ‘GUARD CAT’.

– Boss, I’m sorry. Isn’t the damage severe?

“It’s bad, but luckily the backup server seems to be okay. “They say it can be restored.”

– ha. That’s a good thing.

“Annie, what happened? How did you get through this? “Have you checked?”

– I’m checking it now. But it’s not easy to find a way. The technology they use is very high.

The defense system of ‘GUARD CAT’ contained a level of technology that was one step higher than the current technology. It was thanks to Dojun’s technical skills that returned.

‘It’s not just that. GUARD CAT is a defense system that learns the patterns of numerous hackers around the world in addition to the skills of genius hacker Annie. But is there a hacking program that can break through this? ‘Who on earth made that?’

“Annie, please keep checking. “I will look into it personally.”

– Yes, boss.

“By the way, Annie. Let me ask you one thing. “Did you get a call about purchasing the GUARD CAT defense system from Japan?”

– huh. I’ve been here for a long time, but I don’t know how they found out, but they knew that it had been opened this time. I canceled my purchase.

“okay. “Keep up the good work.”

After hanging up the phone, Dojun thought for a moment and then laughed.

“Well, I’ve been worrying about something stupid all along.”

Dojun wondered what to do with the GUARD CAT regarding the Battle of Gyeongin.

Dojun naturally thought that Japan would introduce the GUARD CAT defense system that can prevent DDoS.

‘Then a contradiction arises. ‘The contradiction is that I have to break through the shield I created.’

This was a shield that could be pierced but should not be pierced. However, just like in the previous life, this shield had to be broken through in order for Korea to win the Battle of Gyeongin.

Dojun was in a situation where he couldn’t do either this or that, but this incident happened.

“It was all for naught. “It was a useless worry.”

Dojun turned on Visual Studio, a coding program.

‘Japanese people, they must be happy that they have succeeded by now, right? But that’s your biggest mistake. ‘You destroyed the biggest defense shield.’

The reason Dojun hesitated was not because he lacked skill. This was because he could not break through the GUARD CAT he had made with his own hands. But now Japan has erased that hesitation.

Dojun looked at the clock.

‘There are two days left until March 1st. This time is enough. Look forward to it, because this life will be different from your previous life.’