Twenty-nine, the task of ghosts

In the conference room of the logistics office, Lieutenant Li and Team Leader Yan are discussing this new plan.
"In this penetration test, the two of us will act together. One of them will find a way to 'infiltrate' the company, and the other will be on guard outside. If the deeds are accidentally revealed, quickly ask for the other party's support. And we must quickly show the military's Identity proof, to show that it is because the test is required for this project, that we secretly entered the company for the test, so as to avoid unnecessary disputes.”

Team Leader Yan looked at Lieutenant Li with a puzzled expression, and asked, "'Infiltrating'? Do you need to dress up in the middle of the night, and then sneak over the wall to get in?"

Lieutenant Li imagined the scene, but fortunately he couldn't hold back his laughter. He said, "The team leader's imagination is indeed very rich. If it can be done like this, of course it is very good. But if we want to invade the Internet, it is not necessary to When we come in the middle of the night, we can use our working hours to sneak in when there are many people. According to some actual information security cases, even in a company with strict access control, when employees return to the company after eating out at noon, because It is the most relaxed moment of the day, but it is the easiest to sneak in and succeed. However, that is just a statistical data, we will have to look at the situation on the spot and act accordingly.” Lieutenant Li explained.

"No problem! This sounds interesting. It's a pity that it wasn't made into a movie!" Team Leader Yan finally returned to his usual relaxed expression.

Lieutenant Li gave a wry smile and said, "Team leader, you are thinking too much! I will also prepare the relevant equipment needed to access their intranet, as well as the operation process. Please cooperate with the team leader at that time. Can."

Faced with these two companies, Lieutenant Li had some scruples in his heart, and then said, "Because I have met Mr. Yuan of Dake Technology several times, he should also recognize me, so it may not be suitable for me to infiltrate their company, Just ask Team Leader Yan to help carry out the infiltration plan, and I will be ready to respond outside.”

"That's no problem!" Team Leader Yan responded cheerfully.

"The other company, let me sneak in, and Team Leader Yan is ready to respond." Lieutenant Li said.

Seeing Lieutenant Li devoted so much to the project, Team Leader Yan seemed to see himself who was so devoted to his work a few years ago, but now he can only feel annoyed in his heart: "If that thing doesn't happen, that thing will let you down. It's okay to regret something."
(For details, see Attachment 1. Team Leader Yan's Nightmare)

On the morning of the penetration test, Lieutenant Li and Team Leader Yan came to the vicinity of one of the companies and parked on the side of the road. Lieutenant Li said, "Just ask the team leader to be on guard in the car first. We will keep in touch with our mobile phones. I will hurry up. Hurry back, there's still some work to do when we get back to the car."

Before Lieutenant Li got out of the car, Team Leader Yan said to him, "Okay, let me know as soon as possible if there is any situation."

After getting out of the car, Lieutenant Li put on the baseball cap on his head and lowered the brim of the hat on purpose. He was wearing an orange short-sleeved top, and he held a package in his hand.

This company is one of the units in a commercial building. It seems that the building's access control is not particularly strict. It only requires security personnel to do routine access control management. The security personnel are also a little old.

"I don't know, where do they connect to their intranet?"

Lieutenant Li turned on his mobile phone, first of all, he wanted to search to see if there was a wireless Internet hotspot of this company nearby. "Unfortunately, there is no wireless network similar to their company. It seems that we have to get closer to that company."

Someone happened to be entering the building from outside. Lieutenant Li held the package in his hand. When he passed the security guard at the door, he compared the package to him. The security guard just glanced at it and didn't ask any more questions, so Lieutenant Li followed the person in elevator.

At this time, I encountered the first problem. It turns out that each floor of the elevator in the building has its own access control. You have to swipe your card to make the elevator stop on a certain floor. The person in front presses the fourth floor, but the company you want to sneak in is on the second floor. !

"You can't go down to the first floor to find security help, but you will be able to help!" Lieutenant Li thought to himself, "Let's go out to the fourth floor first!" After turning around in the public area on the fourth floor, Lieutenant Li found Emergency escape door.

Generally speaking, for the sake of fire safety, commercial buildings must have emergency escape doors. You can use stairs to go up or down from a certain floor, but the escape door is usually one-way and can only be accessed from a certain floor. Go out to the stairwell, and the opposite direction is set as a no-go by the latch on the door. Lieutenant Li went down the stairs on the fourth floor with an uneasy heart. When he went down to the second floor, he found that the emergency escape door on the second floor was completely open.

"Oh! It's luck, maybe because it's on the second floor, many people don't want to wait for the elevator and go straight up the stairs to the second floor, so the emergency escape door on the second floor is always open!"

After walking a few steps forward, I finally arrived at the door of the company. There are switchboard staff at the reception counter inside the door, and they are also responsible for the access control management of the company. Lieutenant Li pointed to the package in his hand and signaled to the switchboard that he was a delivery person. Then, the switchboard staff pressed the reed switch of the gate, and the gate opened.

After Lieutenant Lee entered the door, the switchboard said, "A package? To whom?"

Lieutenant Li picked up the package and said, "This package is going to be given to Manager Zhang, please sign for it here."

The switchboard staff looked at the signed document and said, "Strange, there is no such person in our company!"

"No way! You should look at this address again!"

"That's right! But we don't have Manager Zhang with that name!"

"No! I'm sorry! I have to call the company first and ask."

Lieutenant Li pretended to call the phone to confirm, and after casually pressing a few times on the phone, he said to himself, "Yes! It's the right address! You have to check it out! I'm older. He came all the way here." He said a little in a bad tone, "Why do you have to wait, how long do you have to wait!"

The switchboard staff heard Lieutenant Li's slightly upward tone and signaled him to be quiet.

Lieutenant Li nodded and apologized frequently, but his mouth was still complaining to the mobile phone, and he walked backwards to the reception room while talking on the phone by himself. "Is this acting okay?" Lieutenant Li thought proudly.

The next step is to quickly find a usable network plug. Lieutenant Li quickly swept through every empty reception room, and finally saw an inconspicuous network jack in a remote corner, so he took out the prepared wireless memory. Take the point (WAP) device and a short piece of network cable and plug it in quickly. This small box looks very ordinary. At first glance, it looks like an ordinary telephone junction box. Lieutenant Li quickly completed the decoration and fixed it to the wall with tape.

So, while he was talking on the phone again, he walked towards the switchboard. And said, "What! It's wrong, it's not this company, it's true!", so he nodded and said sorry to the switchboard staff. Lieutenant Li quickly left the company, stopped by the road, and joined Team Leader Yan.