Despite all the volatility, fickleness, and doublespeak around blockchain, this technology continues to demonstrate an unfading rise.
According to Statista, decentralized technology is projected to grow to roughly $1 trillion by 2032. The numbers do not cover decentralized applications such as blockchain gaming, which, if taken into account, will add even more to the final amount.
Undoubtedly, blockchain offers a promising future, but it also draws a lot of saboteurs looking to exploit gaps within the decentralized ecosystem.
Recently, there have been more and more complaints regarding cases of scams targeting blockchain developers—deceitful job offers and test tasks made to infiltrate codebases.
This web3 scam often goes unseen until it’s too late, as assaulters plant harmful code meant to swipe private keys, wallets, and project details.
In this article, we’ll investigate the emerging threat, analyze how to recognize the episodes, and learn how to protect yourself from falling victim to such plots.
Why Are Crypto and Blockchain Developers Prime Targets for Scammers?
It’s simple—crypto and blockchain developers often have access to a bunch of sensitive records. Just one compromised key can induce massive losses, and recovery is hardly possible.
Scammers exploit developers’ habit of downloading code from various sources by implanting malware in presumably legitimate repositories.
In the blockchain field, where startups and projects emerge with remarkable frequency, it’s easier for attackers to disguise themselves as honest enterprises offering lovely options that feel too good to pass up.
How Hackers Target Blockchain Software Developers: General Overview
The reason hackers often target blockchain developers is evident. However, here it is more important to understand not why, but how they do it.
Such scammers often reach out to developers directly through social media, such as LinkedIn or job search websites like Upwork, under the guise of employers or clients, presenting their supposed test tasks and requesting software developers incorporate new code into projects.
Here comes the major red flag: the code they give contains backdoors or functionality designed to pull out funds from wallets, steal development keys, or just put the whole project at risk.
The most popular way to lull one’s guard down is social engineering—convincing developers that completing a task is a step toward a permanent position or a rewarding freelance opportunity. However, their intention is just to make developers run their malicious code in a local environment.
Attackers rely on the mental conviction of the truth developers place in these “job offers” that appear to come from credible sources.
The Hook, the Liner, the Sinker: Anatomy of a Blockchain Scam
Like any other dishonest ploy aimed at extorting funds from an unsuspecting victim, a blockchain attack consists of several parts: the hook to tempt people into downloading code, the line, and the sinker.
The Hook
Picture this: you’re a blockchain developer, excitedly researching new job opportunities. An HR manager or a CEO reaches out, inviting you to try yourself in a tempting position.
Everything looks impeccable at first sight—a trusted team, a credible source of communication, and active social media pages. It looks so good that it would be ridiculous to decline an offer.
But beware! Scammers often go to great lengths to appear legitimate, creating convincing backstories, profiles, and even websites. They hook you with enticing roles and then ask for a “test task” to slip malware into your system.
The following points may be indicators of possible fraud:
- Extremely lucrative job posts
- Unverified clients
- Job offers even if blockchain isn’t your expertise
- The customer does not want to have a preliminary call, but if they do—they refuse to use a web camera
- Many logical inconsistencies during the entire hiring process
Once you see this scam, you can effortlessly spot it in the future, as all of these schemes follow the same pattern. Stay cautious, and don’t fall for too-good-to-be-true promises.
The Line
When you’re hooked, the scammers move to phase two: the “Line.” This is where they reel you in deeper by using persuasive communication, fake contracts, and urgent requests.
The story usually goes one of two paths: either their previous developer mysteriously vanished, or they need you to prep by reviewing some code and adding simple features before an interview.
The catch? You’ll have to download their codebase, which is polluted with malware. They’ll push you with urgency—just a quick fix, nothing complicated. And all this is to make you make a mistake, while they avoid direct calls or more profound interaction.
The Sinker
The “sinker” is where the trap closes. When you download and run the codebase, you unknowingly activate a hidden Remote Access Trojan (RAT).
This elaborate malware penetrates your system and stealthily scans for sensitive data, such as browser profiles, autosaved passwords, seed phrases, or login credentials. Worse, it’s platform-agnostic—it relies on tools like npm to gain access.
As long as you’re trying to inspect the code, the malware is working noiselessly in the background, logging keystrokes and clipboards, accessing files, and targeting your crypto assets. The endgame? Empty wallets and compromised accounts.
How Malicious Code Targets Blockchain Developers: The Technical Side of Web3 Scam
At first glance, malicious code embedded in test tasks can seem harmless. Hackers use obfuscation techniques to hide harmful elements within seemingly benign code.
They might hide backdoors or Trojans within functions that appear normal but are secretly designed to exfiltrate data when the code is executed.
Example: Sentry library that is imported not from the npm repository but locally from the file. Another example is lots of malicious outdated dependencies. The code is incoherent and confusing.
The real trouble lies in the fact that this code may work as expected in a test environment, which makes it hard for software developers to notice any abnormal behavior at first.
The assailants count on developers being dedicated to completing the assignment, rather than inspecting every line of code. By the time the malicious actions occur—stealing private keys, data, or wallet credentials—it’s too late.
The Financial Risks of Blockchain Scams for Developers and Companies
Falling for these scams can lead to severe financial and operational consequences. Developers who unknowingly run contaminated code can disclose wallet credentials, intellectual property, and other personal attributes.
For companies, however, it could be even worse: loss of clients’ trust, subpoenas, and, in the worst case, funds or the whole project compromised.
The aftermath often involves costly recovery efforts, including rebuilding the compromised codebase and notifying clients about the breach. Reputational damage, in turn, can have long-lasting effects on a blockchain company’s ability to take up new clients or investors.
Real Cases of Fraud Reported in the Blockchain Space
The DEV#POPPER Campaign is one of the most notable examples wherein attackers, posing as recruiters for legit crypto projects, asked developers to perform test tasks that actually contained malicious code to steal private keys and wallet data.
This case was probably related to North Korean cyber groups using social engineering in order to hit blockchain users.
Another example was the fake Plexus blockchain job offers. Scammers identified themselves as famous crypto corporations (using malicious similar domain names) and sent developers tasks with malware inside. After completing some of those tasks, some developers found their wallets had been drained.
Other tactics involved GitHub/Bitbucket repository bait, in which scammers invited developers to clone a project and contribute to it. However, the project hid spyware inside the repository.
The software targeted password managers and crypto wallets and stole credentials and seed phrases. Several developers indeliberately shared their private information by simply interacting with the project.
How We Detect and Protect Ourselves from Such Threats
At SCAND, we recognize the threat and have done our best to prepare and integrate all possible measures to detect and protect against malicious invasions:
- Potential Customers KYC Process: To verify potential customers, we conduct a thorough KYC process that includes video calls, checking communication channels, verifying identities, and using red flag checklists.
- Detailed Code Inspections: Every customer codebase is examined by our experienced developers to spot anomalies or hidden ill-natured parts.
- Hostile Code Isolation: We run provided code (after inspections) only within isolated environments, so no harm could be applied.
- Advanced Security Tools: We use complex tools to review codebases for flaws and gaps, obfuscated malware, or backdoors. These tools provide instant signals and prevent threats from progressing unnoticed.
- Team Awareness and Training: Our team is constantly engaged in regular security workshops that keep everybody updated on all the latest scams and hacking techniques. They help our team identify red flags, for instance, suspicious test tasks or exaggerated job offers, and sidestep further engagement. Plus, we follow ISO27001-certified security practices to keep data locked down.
- Controlled Access and Segmentation: We hold sensitive systems and data on lockdown and do not give Production access to any team members. This way, we minimize the chances of breaches induced by compromised accounts. Developers do have access only to development and staging systems without access to wallets with real customer funds. Layered security architecture helps isolate sensitive credentials and keys. We use security groups, KMS and strong encryption at rest and in transit, automated CI/CD, security monitoring tools, regular dependencies, and code scanning.
- Penetration Testing and Simulation: We regularly run simulated attacks to test our defenses and find defects before bad actors can manipulate them. This farsighted approach enables us to stay ahead of probable hazards and maintain the protection of our systems.
- Collaboration and Reporting: By sharing scam patterns with the broader developer community, we aim to protect not only ourselves but everybody. Besides, we register any doubtful activity to platforms or authorities to make the ecosystem safer for all.
Best Practices for Blockchain Developers and Companies
To steer clear of blockchain fraud, it’s important to follow some rules. First of all, always verify job offers by doing your homework—research the client and check their connections. If you doubt, ask ChatGPT to analyze the company for you.
When it comes to code, don’t take anything for granted. Run thorough examinations and double-check through layers of verification to catch shady indicators.
Also, limit access to confidential records—only technical system accounts should have access to the keys to critical components.
And, of course: inform your team. Frequent training in current trends in security can make all the difference in identifying and resisting scams.
For protection, you must always scrutinize the potential collaborator and work with verified partners only. Clearly defined project guidelines and secure communication will go a long way in protecting your work from such miscreants.
Closing Thought: How to Stay Ahead of Blockchain Threats
While blockchain technology expands, the methods of cybercriminals grow accordingly.
Both developers and companies they work for must be aware of the risks and take precautionary measures to provide 100% security in their projects.
By and large, it means being able to recognize the signs of malicious intent, conducting thorough code inspections, and following industry-standard practices that will minimize the risk of falling victim to attacks.
Be on your toes when looking at new blockchain opportunities and keep your guard up!
Our team will get in touch with you really fast to protect your assets from cyber threats. For any consultation or more details on what we can do for you, please don’t hesitate to reach out to us!
