Rule department scholar

Open the monitoring record.

There were dozens of Penguin accounts and passwords on it. He logged into one to check, found a group related to police affairs, and then sent a group email of a Trojan horse file.

Log in the second.

"Logistics director, Zhou Hongwen?" Zhao Yi looked at it in surprise, and realized that there was no need to log in again.

This one Penguin is worth ten!

……

Li Jiandong worked the night shift that day.

Compared with other departments of the police, the logistics department is relatively relaxed, and logistics is rarely used in emergencies, and the night shift of logistics is relatively relaxed.

Li Jiandong couldn't relax at all. He was worried that the police website would be hacked again, so he checked and opened the website connection over and over again, carefully paying attention to whether it had been modified.

He kept staring until after eleven o'clock.

"It seems to be fine. After hiding the management entrance, the other party can't do anything."

Li Jiandong breathed a sigh of relief, and found a group email notification in the lower right corner. There are new emails in the Penguin mailbox. He usually doesn't care about them. Most of them are advertisements and scammers, but this email is completely different.

That was the email from Director Zhou.

Li Jiandong quickly clicked on it, and found that there was only one sentence in the email——

Everyone, take a look at the documents below!

"Documents?"

Li Jiandong discovered that the email was accompanied by a document, and he clicked on it without thinking too much. The document was opened in the browser, and there was indeed a lot of garbled characters in it.

"What? Something went wrong?"

Li Jiandong fiddled with it for a long time and didn't understand it. He downloaded it and opened it again. There were still a lot of garbled characters in the document, "Maybe it was sent by mistake?"

Li Jiandong didn't care.

He graduated with a bachelor's degree in computer science, and has continued to do computer-related work after entering the police force. He is still confident in his computer skills.

For example, the firewall on his computer has always been the highest protection, and the anti-virus software on the computer is always on.

As long as there is no prompt from the firewall and anti-virus software, there is no need to pay special attention to it.

Zhao Yi had just washed up and was about to go to bed. After scanning the computer screen, he found that the program had received a message?

Someone opened the email so soon?

He opened the document record, and there were hundreds of link records in it. The function of the Trojan horse program was to copy the last [-] historical link records once it was executed.

It's a bit like casting a net for fishing.

In fact, this is the case with throwing Trojan horses. How many fish can be caught by casting the net is really a bit of luck.

Zhao Yi used the Penguin to launch at a fixed point, and his luck was also very good. He found a few links related to police affairs, opened them and found the management entrance.

After reading the suffix of the entrance, he felt a sudden realization.

No wonder I couldn't find it!

This guy modified the connection entry to almost garbled characters.

Zhao Yi tried a few recorded IDs and passwords, and then directly entered the management page, and then put a flash animation of an eagle flying, a link, and hidden a super difficult math competition question.

There are also special reminders--

(The answer to the question multiplied by π is the password, come on!)

And then……

"Yup!"

"This guy hides the management entrance. It's really not easy to find it. Just embed a functional program directly in the source code of the website!"

Zhao Yi began to write in high spirits.

It's easy.

He hides the program in calling the database, loading pictures, and file codes. The function is to display the connection of the management entrance, the account number and password of the management on the third-level interface of a long news.

of course.

The displayed information is disrupted, and other people must not be able to understand it.

If you are an experienced programmer who is good at website design, you will probably find that something is wrong when you see a program that calls the database in the website code.

That also needs to be looked at carefully.

The garbled codes on the third-level news interface are not easy to see. One is that there are too few people visiting, and the other is that the news is very official and basically has nothing to say. It is a bit of a headache to watch. I guess It is difficult for anyone inside the police to click in.

"I'm not afraid that the other party will change again this time!"

Zhao Yi went to sleep satisfied, but he kept thinking about programming issues in his mind.

'Copy monitoring' could not be done, and I always feel very unwilling. It is not good enough to find the management entrance by putting Trojan horses.

but……

The framework of the Bomberman Trojan horse is not bad, with high concealment and easy deployment. There are many things that can be improved, and it is also very usable and promising.

This is also a harvest.

Chapter 1 My Heart Really Hurts

One o'clock.

Li Jiandong opened his eyes dimly. He was half asleep and half awake. He felt uneasy no matter what, so he quickly got up and went to the computer to take a look.

The website has been changed again!

Another eagle!

Another DJ soundtrack!

"How did this Yiying do it!" Li Jiandong felt like he was going crazy, his face was so dark that he couldn't find the sleepiness at all, he hurriedly opened the source code file, and found that the database could not be overwritten and could not be directly modified at all. .

He simply stared at the math problem.

Look carefully!

Look again!

High school Olympiad level and difficult math problems are definitely not something ordinary people can solve.

Li Jiandong couldn't even understand the question, let alone solve the answer. He immediately thought of Sun Liang at the gate of No. [-] Middle School.

He wrote down Sun Liang's cell phone number.

"Fortunately, I'm smart!" Li Jiandong took a deep breath, thinking it was too late, wouldn't it be a good idea to call?

Can't manage so much, we must solve it quickly!

If it hasn’t been resolved by morning, Director Zhou can’t explain it. It’s just that a few people see it, it doesn’t matter. They can’t be sure whether it has been invaded, and they can have an excuse to the outside world. Maybe it’s a temporary adjustment, modification, or just a display error. Woolen cloth?

Li Jiandong called immediately.

Sun Liang was falling asleep in a daze, when he heard the vibration of the mobile phone, closed his eyes and touched it for a long time, and found an unknown number in front of him, he pressed the answer button out of curiosity, and heard the other side say, "Is it classmate Sun Liang? I am Officer Li who was looking for you at noon yesterday."

"Officer Li... okay?"

Sun Liang regained his spirits immediately.

Li Jiandong was silent for a long time, didn't know what to say, but said seriously, "I'm really sorry to bother you so late, student Sun Liang, I have an urgent matter, I have a math problem, can you help me with it? "

Sun Liang immediately sat up, turned on the desk lamp, and asked, "It's so late, does it count as overtime work? How much?"

"One hundred, okay? Twice."

"No."

Sun Liang remembered Zhao Yi's words, and immediately shook his head and said, "It's fifty during the day, and you interrupted my sleep, and I got up to do the questions again, and I will not be energetic in class tomorrow, which will delay my study all day! Maybe it's because of this day that I won the college entrance examination. Can't get into the ideal university?"

"Let's do this! Five hundred, no second price! If you don't agree, I'll hang up."

Li Jiandong was dumbfounded.

He deducts insurance, gold, and full attendance bonuses for a month, which is about 3000 yuan.Five hundred at the first opening?

It's too dark!

Li Jiandong took a deep breath, suppressed his anger and agreed.

Sun Liang felt that he could still negotiate the price, but he didn't expect the other party to really agree. He still didn't believe it, so he continued, "Well, you can send me a text message and say, 'Sure to pay me five hundred yuan to thank me for helping me. You do the question', otherwise what will you do if you go back on your word and don't give it?"

"Give me the money at the gate of the school tomorrow!"

His character was doubted by a high school student, and Li Jiandong suffered a second blow to his heart. He still humiliated and agreed.

Li Jiandong took a screenshot of the question and sent an MMS to it. Due to the network transmission speed, Sun Liang waited for a long time before successfully opening it. He was also curious about how difficult the math problem worth 500 yuan was.

Open it up and take a look.

"Isn't this the Olympiad problem I did at noon yesterday?"

Sun Liang looked at the topic in surprise, thought about the complicated situation between Zhao Yi and Police Officer Li, and finally shook his head, "It must be related to Zhao Yi, yes, I will give Zhao Yi two hundred and five tomorrow. Maybe next time, this Police Officer Li, You will spend 1000 yuan to buy the answer!"

Sun Liang waited symbolically for 5 minutes before sending the answer to Li Jiandong.

Li Jiandong looked at the message in surprise.

So fast?

If there is no mistake in the memory of going to school, the difficulty of the topic must be very high. How can you do it so quickly?

"It's really the same as what my colleagues said, this Sun Liang is a math genius?" Li Jiandong suddenly found himself unable to understand how powerful Xueba is.

He verified the answer.

correct!

After Li Jiandong put down the phone, he quickly changed the website.

After all the modifications were completed, he was worried that there was something wrong with his computer, so he simply went to a nearby department, found a new computer, and changed the management entrance, ID and password.

"It's definitely going to be fine this time!"

"Even if there is a problem with my computer, it is impossible for other people's computers to have problems!"

This time Li Jiandong slept soundly.

He didn't know where the specific problem was, but no matter how advanced a hacker was, it was impossible to stay in front of the computer all the time, let alone re-crack the login entry, account number and password in a short time.

Li Jiandong was woken up by the phone.

At around six o'clock in the morning, a colleague from the logistics department called, "Jiandong, don't sleep! Our website has been hacked again!"

"It's still Yiying!"

"Go and have a look!"

Li Jiandong thought it was a dream. He changed the website after three o'clock, and it felt like he had just fallen asleep, and someone said that the website was hacked again?

This is too fast!

When he turned on the computer to check again, he found that the news picture was still Eagle Flash, and he clicked on it to connect to the same a cappella dance song. The only difference was...

Math problem changed?

……

Sun Liang came to announce the good news in the morning.

He said energetically and excitedly, "Zhao Yi, that Police Officer Li came to me again, after one o'clock at night. I was sleepy, so he asked me to solve the problem. This time I asked for 500 yuan!"

"When I get the money, I'll give you half of it."

"By the way, you're showing signs." Sun Liang approached obsequiously, "Let that Officer Li look for me again, this matter must have something to do with you, right?"

"You're smart!"

Zhao Yi said comfortingly, "I don't know if there will be a next time, it depends on the situation."

Mathematical Olympiad is approaching.

Zhao Yi and Sun Liang spent a lot of time doing Mathematical Olympiad questions. They had no special training in Mathematical Olympiad and could only improve by doing the questions. They saw more question types and learned more about problem-solving ideas. Definitely helps the competition.

Niu Lianhua paid more attention than them. She not only supervised the two of them to do the questions, but also cared about which questions they had done, and found new question types for them to do.