If you’re a crypto holder, as the cryptocurrency market value grows, you should be increasingly concerned about the security of your funds.
If you’re still unaware of the security risks, you are at a higher chance of becoming a victim of hacking attacks.
That’s why it’s crucial to understand some of the common attack methods used by hackers to steal cryptocurrencies.
Below, we explore some of the most dangerous viruses designed by cybercriminals to target crypto holders.
WannaMine is one of the most infamous cryptojacking viruses, gaining prominence after the WannaCry attack in 2017.
How It Works
This malware is designed to mine Monero (XMR) by secretly infecting a victim’s computer. Once the attacker manages to insert the WannaMine script into the system, the malware operates silently, using the victim’s CPU power to mine Monero coins. The mined cryptocurrency is then transferred to the hacker’s digital wallet.
Why Is WannaMine So Dangerous?
- This virus affected more than 500,000 systems between September 2017 and February 2018
- It consumes nearly 100% of CPU power, severely impacting system performance and increasing power consumption
- Victims experience slow system performance and higher electricity bills
How to Protect Yourself
Fortunately, a security patch is available. To stay safe, ensure you:
- Regularly update your system
- Use reliable and up-to-date antivirus software
- Monitor your system performance to detect unusual CPU usage
The Razy Trojan became widely known in early 2019 and primarily spreads through infected software and browser extensions.
How It Works
This malware is typically distributed via deceptive websites, fake advertising banners, and free file hosting services. Once installed, it can:
- Modify Google Chrome, Mozilla Firefox, and Yandex browser extensions
- Disable automatic updates and bypass integrity checks
- Display fake messages encouraging users to sell cryptocurrency at inflated prices or donate funds for fake causes
- Manipulate search engine results to redirect users to malicious sites
How to Protect Yourself
- Avoid downloading software from untrusted sources
- Be cautious of pop-up messages promising unrealistic crypto earnings
- Install browser extensions only from reputable sources
- Use a reliable antivirus program to scan for malware
Coinhive is a malicious JavaScript code that operates within infected websites and browser extensions to mine Monero.
How It Works
When a user visits a website containing Coinhive code, the script starts mining Monero using the visitor’s CPU power. The mining process continues until the browser is closed, leading to increased CPU usage and system slowdowns.
Signs of Coinhive Infection
- A noticeable increase in CPU usage
- Overheating or loud computer fan noise
- Browser performance issues
How to Protect Yourself
- Regularly check your task manager for abnormal CPU usage
- Reset your browser if you suspect an infection
- Use browser extensions that block cryptojacking scripts
Cryptocurrency-related viruses are becoming more sophisticated as the crypto market grows. Initially, these threats primarily targeted desktop computers, but now, mobile users are also at risk.
For example, in early 2019, a fake MetaMask app was found on the Google Play Store, capable of replacing copied wallet addresses with those belonging to an attacker. The malware, known as ‘Clipper,’ demonstrated how easily hackers can exploit mobile users.
As the crypto community, we must stay informed and take proactive measures to secure our digital assets. Spreading awareness and educating others is crucial in preventing cyber threats.
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