6: Chapter 6 The Redemption of the Skull and the Apple

The computer screen emitted a pale, sickly light in the dim room, illuminating Mark Dubois's pallid face. His expression was a mix of the oily sheen from staying up all night, the grayness of despair, and a final, desperate glimmer of hope, like a drowning man clutching at a straw. In the center of the screen, beneath a grinning red skull, a line of blood-red text counted down like a curse: "Your files have been encrypted! Pay 0.5 Bitcoin to the address below within 48 hours, or the key will be permanently deleted!"

0.5 Bitcoin. In the summer of 2010, this thing was more foreign to most people than alien currency. Mark didn't even know where to get this damn thing. Worse, the encrypted folder contained their marketing group project—《Analysis of Potential Opportunities in the 2010 Smartphone App Market》—which they had pulled three all-nighters to prepare for a presentation tomorrow afternoon. Their entire group's hard work, along with his notes accumulated over half a semester, draft papers, and... some private photos he didn't want anyone to see, had all turned into gibberish that looked like an alien language.

"Alex, do... do you really have a way?" Mark's voice was dry, his fingers unconsciously tugging at his curly hair. Standing next to him was Raj, the roommate who had asked for help in the group chat, currently rubbing his hands together nervously. They had met Alex at his doorstep—Alex had simply sent an address and said he needed physical contact with the possessed laptop (an old Dell Inspiron). Mark had carried it over as if it were a bomb.

"I can't guarantee anything, Mark." Alex sat cross-legged on the carpet, placing the computer on the coffee table, his tone calm enough to be unsettling. "But we can try. First, unplug the network cable." He reached out and deftly pulled the cable from the port. "A lot of this stuff validates over the internet; disconnecting is the first step. Raj, do you mind turning on your phone's hotspot, but setting it to 'No Internet Sharing' mode? I only need local area network functionality."

"Huh? Oh, okay!" Raj hurriedly complied. Alex instructed Mark to use a USB drive to boot into a lightweight, Linux-based rescue system he had hastily created on his own computer. The skull on the screen disappeared, replaced by a clean command-line interface.

Mark and Raj held their breath, watching Alex's long fingers tap rapidly on the keyboard, lines of command characters they couldn't understand scrolling across the black screen. lsp, mount, cd, grep... Alex's eyes were focused, his brows slightly furrowed, occasionally pausing to close his eyes and think for a few seconds—he didn't look like he was recalling operating steps, but rather... accessing some deep-seated "intuition."

【Basic Computer Security and Data Recovery Principles】 were running efficiently, but the key that truly pointed to victory was that vague "impression" belonging to the future. He remembered an early ransomware family that started becoming active around 2010. Its first few variants had a fatal flaw in the encryption algorithm they used: the "seed" used to generate the encryption key was partially derived from a simple combination of the infected computer's system timestamp and a certain hardware serial number. If one could get an encrypted sample and reverse-engineer this pattern, it would be possible to reconstruct the decryption key. He vaguely remembered a cybersecurity blog reviewing this history a few years later, which seemed to have posted the key generation formula for one of the variants...

It was like knowing who the final killer in a suspense movie was, but having to work backward to figure out the process of how the detective found the clues. The system knowledge gave him the "detective skills," while the future memory gave him the "killer's identity." Now, he needed to combine the two and complete a precise "spacetime surgery" within this command-line world.

Time ticked by. The room was filled only with the click-clack of the keyboard and the low hum of the air conditioner. Beads of cold sweat broke out on Mark's forehead, and Raj couldn't help but bite his nails.

Alex tried three different approaches. The first two failed, and the command line returned frustrating errors. Mark's heart sank. But Alex didn't seem discouraged; he wiped his face, took a sip of water, and his eyes grew even sharper.

"Third possibility..." he muttered, his fingers typing even faster. This time the command was longer and more complex. He mounted Mark's hard drive partition in the rescue system, located the directory of the encrypted files, checked the specific bytes at the beginning of the files with a hex editor, and then compared and calculated them against the vague formula in his mind.

The screen began to scroll through massive amounts of calculations. Suddenly, the scrolling stopped.

A line of green text popped up: Potential Key Fragment Detected: 0x7A3F...

Alex's eyes lit up. "This is it," he whispered, his fingers flying as he substituted this fragment into the subsequent commands. Another round of calculations.

A few minutes later, a concise prompt appeared on the screen: Decryption Key Reconstructed Successfully. Apply to selected directory? (Y/N)

"Should... should I press Y?" Mark's voice was trembling.

Alex glanced at him, nodded, and then pressed the Y key.

The progress bar began to move slowly but steadily forward. 1%... 5%... 20%... The hard drive light flickered frantically. Mark and Raj clenched their fists tightly, their eyes wide.

When the progress bar reached 100% and the prompt "Decryption Completed" popped up, Mark nearly dove at the computer. With trembling hands, he used the mouse to click open the folder that had once been ruled by the skull.

The familiar file icons appeared! He double-clicked to open the file named "Marketing_Project_Final.ppt."

PowerPoint started, the familiar cover page, the familiar charts, the familiar text... everything was intact!

"Oh my god... Oh my god!!!" Mark jumped up from the carpet, waving his arms, letting out a strange cry mixed with ecstasy and choked sobs. "It's back! It's all back! Alex! You're a wizard! You're absolutely a wizard!!!"

Raj also yelled in excitement, slapping Alex on the shoulder: "Dude! You saved our lives! No, more than that! That damn skull is gone!"

Alex breathed a sigh of relief and leaned back, feeling mentally exhausted, but a strange sense of accomplishment surged in his chest. He hadn't just "fixed a computer"; he had, for the first time in this real world, concretely and directly applied the combined power of the "future" and the "system" to solve a real problem. This feeling was more real and... powerful than getting ten thousand clicks on a video.

After the ecstasy faded, Mark calmed down, looking at Alex with eyes full of unbelievable gratitude and lingering fear. "Alex, I... I don't know how to thank you. Really. This isn't something money can measure..." he rambled.

"It's fine, we're classmates, we help each other," Alex said with a smile, downplaying it.

"No, it can't just end like this!" Mark insisted. He was a business school student from a well-off family and understood some basic principles of "exchange." "You spent your time and used your... professional knowledge. Here, I'll pay you! Five hundred dollars? No, a thousand!" He reached for his wallet.

Alex raised a hand to stop him. "Mark, really, don't. I'm not a professional, and I'm not planning on making money from this." He paused, his gaze sweeping over the old Dell with cookie crumbs in the keyboard, then glanced at his own MacBook Pro in the corner, which was decent but starting to struggle, and an idea struck him.

"However," he changed the subject, his tone casual, "if you really feel bad about it... I am working on some video projects, and the performance requirements for the computer are getting higher and higher. I'm afraid this old buddy of yours..." He gave the Dell a meaningful look.

Mark understood immediately. He slapped his thigh: "The computer! Yes! Alex, wait here!" He rushed out the door like the wind, and a few minutes later, ran back holding an unopened dark gray box, breathless. "This... this! My uncle gave it to me as a birthday gift last month, the latest MacBook Pro 15-inch (Mid-2010), top configuration, i7 processor, 8G RAM, high-resolution screen! I was planning to replace that old Dell myself, but I never got around to unboxing it! Take it! You must take it! This is a much better deal than giving you money, and I don't really know how to use the Mac system anyway!"

Alex looked at the box with the glowing Apple logo, his heart skipping a beat. This was exactly the workstation upgrade he desperately needed. He hadn't expected the return to be so direct and so generous.

"This... this is too expensive, Mark."

"Expensive my ass!" Mark shoved the box into his arms without letting him argue. "Compared to the project you saved (and my private photos!), this isn't even a fraction of the value! If you don't take it, I won't be able to sleep tonight! Take it!"

After a few rounds of declining, Alex "reluctantly" accepted this generous gift. He knew this wasn't just a computer; it was the first substantial recognition and remuneration for his status as a "campus tech expert," and the source was absolutely clean and reasonable.

Mark and Raj left, thanking him profusely while holding the "recovered" old Dell, saying they would definitely treat him to a big meal tomorrow. The door closed, and the room returned to silence.

Alex opened the box, and the sleek, textured silver laptop appeared before his eyes. He pressed the power button, the familiar startup sound played, and the screen lit up with a soft glow. He stroked the cold aluminum casing, feeling the powerful performance within. This was much more effective than the "cash flow" channel he had imagined.

【Ding.】

The system prompt sounded.

【Host successfully applied cross-disciplinary knowledge to solve a real-world dilemma and obtained high-value material rewards.】

【Behavior assessment: Efficient, low-risk, consistent with identity cover.】

【Popularity slightly increased (from the amazement and word-of-mouth of Mark, Raj, and their social circle).】

【Current Popularity: 221 points.】

【Unlocked hidden achievement: 'The First Leverage of the Real World'. Reward: Enjoy a 10% discount on the next 'Information Retrieval' skill redemption.】

Popularity had risen, and a discount was unlocked. More importantly, Alex looked at this new computer, and his thoughts were completely opened up. Solving ransomware was just an extreme case. On the eve of the explosion of mobile internet and digital devices, how many similar, not-so-fatal but annoying "digital troubles" would ordinary students and even ordinary users encounter? Forgotten passwords, data recovery, system optimization, device purchase advice, or even simple programming or web design needs...

He didn't need to be an all-powerful super hacker. He just needed to know a little bit more about the "future" trends and solutions than the people around him, combined with the "basic principles" that the system could redeem, to form a unique and difficult-to-replicate advantage. This could absolutely develop into a covert and efficient "small business" or "relationship network builder."

Of course, he had to be cautious and not be too high-profile. Like today, using "happened to study it" and "luck" as a cover to solve specific problems and obtain reasonable returns (whether favors, information, or physical goods) was the most ideal model.

He set up the new computer and began migrating his work environment. The performance improvement was immediate; the complex special effects that had stuttered when editing "The Singing Signboard" were now incredibly smooth.

Outside the window, night had deeply fallen. His phone vibrated; it was a message from Mark: "Alex, I can't thank you enough! Also, I told my group members that you saved the day, and they all said they want to meet you, the low-key master. Also, about that Bitcoin address, I took a screenshot and showed it to my cousin who studies computer science. He said the address looks a bit familiar, and it might be related to several similar attacks on the campus network recently... Be careful, don't get targeted."

Alex looked at the last reminder, his brows furrowing slightly, then relaxing. Caution was necessary, but there was no need for excessive panic. He now had a faster computer, new ideas, and his popularity had just increased.

He looked out at the calm sea outside the window, his eyes brighter and more determined than ever.

The door to the real world was being pried open wider by his knowledge and information gap. And in the light leaking from behind the gap, there was the reflection of the Apple logo, and more possibilities waiting for him to define. Campus life at USC seemed to be more than just class schedules and coupons.

He created a new encrypted note titled: "Possible Service Directions (Cautious)." Then, on the back of the "Campus Pizza King" coupon on the coffee table, he casually wrote down a few keywords: Data Recovery, System Optimization, Device Consultation, Simple Code.

After writing, he crumpled the coupon into a ball and threw it accurately into the trash can in the corner.

"Ding," a soft sound. The pizza coupon landed at the bottom of the bin.

And on the screen of his new MacBook Pro, the data on the "Alex's Wonderland" channel backend was quietly and continuously jumping upward. Online and offline, the Gear of the two worlds had once again quietly adjusted their depth of engagement because of his actions tonight.