How To Prevent Cryptocurrency Hackers From Cryptojacking Your Laptop

by Sunny Hoi

How Do Cryptocurrency Hackers Participate In Cryptojacking?

Cryptojacking has emerged as one of the quickest-growing cybercrimes. It can be tough to detect and exceptionally profitable for hackers.

Cryptojacking occurs when a malicious hacker successfully hacks your hardware or website and installs a cryptocurrency mining application clandestinely, utilizing your electricity and resources to mine free coins.

There are a couple of ways cryptojacking may occur. One of the more prevalent methods is to deploy malicious phishing emails that may install cryptomining code on a target’s computer. Hackers typically accomplish this via phishing. The targeted victim is greeted with an ostensibly innocuous email with a link or an attachment.

Once the victim clicks on the link or downloads the malicious attachment, it proceeds to run a code that downloads the cryptomining script on the system. Subsequently, the script operates in the background without the target being aware that such a process is occurring.

Another technique that hackers deploy to infect host systems and websites is through the use of various cryptocurrency mining scripts and targetting of sites powered by Content Management Systems (CMS), since one exploit may be employed to infect thousands of distinct websites.

In other words, hackers can inject cryptomining scripts on different websites or in an advertisement that is established on numerous websites.

Once the target visits the infected site, or in the event that a malicious ad shows up in the target’s browser, the script would automatically execute. With this approach, no code is kept on the target’s machine.

Hackers will frequently utilize botnets, infect a large number of computers, and mine a few cents of cryptocurrency each day on several different systems.

Hence, infected sites and devices frequently infect other devices, expanding the hacker’s botnet and profitability.

In the event that a device belonging to you becomes infected, it could render your hardware to underperform or render your site’s user experience sluggish for visitors since their processor is appropriated by the mining script.

The cryptocurrency that hackers mine unlawfully gets transmitted to a wallet the hacker controls. Monero is generally the most common cryptocurrency mined in cryptojacking attacks since it may be mined without costly ASIC miners, on ordinary consumer-grade electronics, and is practically untraceable by law enforcement agencies since it is a privacy coin.

How To Prevent Cryptojacking

Despite the fact that cryptojacking attacks are prevalent, there are methods you may utilize to protect yourself:

  1. Install ad-blocking or anti-cryptomining extensions on your web browsers.
  2. Patch. Ensure the software you use is the most current version.
  3. Be careful of phishing attacks, unknown email attachments, and questionable links.
  4. In the event that your site uses a Content Management System, ensure it is kept updated since CMS-powered sites have been compromised previously, infecting a huge amount of sites.
  5. Make sure to block cryptocurrency mining pool IP addresses and the IP addresses of infected websites.
  6. Deploy a Web Application Firewall (WAF) to safeguard your web application against security vulnerabilities such as SQL injection (SQLi) attacks and Cross-site Scripting (XSS) attacks.
  7. Be suspicious of free CMS themes and free applications that could have malware preinstalled in the code.
  8. In the event that your cellphone uses a significant amount of battery power very rapidly, or if it gets warmer when not in use, these could serve as possible signs of infection.
  9. Pay attention to backdoors in formerly infected systems. Hackers occasionally leave a backdoor that may be employed to reinstall malware that has been eliminated.

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