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The worst malware of 2021

The following article provides you with a breakdown of the worst malware of 2021.

What is Malware?

Malware, short for malicious software, is an intrusive software that is designed and created by cybercriminals to steal, damage and destroy computers and computer systems. The common terms you see and hear often such as, worms, Trojan viruses, spyware, adware and ransomware, are examples of different types of malware.

What have we seen in 2021?

Over the last year, malware has disrupted many organizations. A malware attack on small and mid-sized businesses is a scary thought. Private data is stolen and locked away with the intent to leak the data in the most damaging way if a ransom settlement cannot be met.

With the help of Webroot, and AgileBlue we have compiled a list of the worst malware of 2021 that CommuniCloud is monitoring for.


  • Russian-based private Ransomware-as-a-Service (RaaS) operation offered to other cybercriminals
  • Known for some of the largest supply chain attacks


  • Longstanding Ransomware-as-a-Service (RaaS) group also known as Ryuk
  • Known to leak or auction off data if victims don’t pay the ransom


  • A persistent botnet with cryptomining payload
  • Known to remove competing malware to ensure they are the only infection
  • Infects through email, brute force, and exploits


  • A banking credential theft Trojan virus, however, has evolved into a modular malware enterprise
  • Proliferated through spam emails and using fake Adobe Flash Player updates


  • Specializes in stealing bank credentials via a system that utilizes macros from MS Word
  • Hides malicious coding within seemingly harmless data

Cobalt Strike

  • White hat designed penetration testing tool that has been corrupted
  • Allows an attacker to deploy an agent named ‘Beacon’ on a victim’s machine

It’s important to keep your organisation safe from all types of malwares. The average cost for ransom for small to mid-sized businesses is averaged at $68,000. Cybercriminals are only getting smarter and more sophisticated. You may ask yourself, how do these attacks keep happening? Phishing is the number cause for these attacks to be successful. This highlights the importance of cyber education within any organisation.

The key to staying safe is layering your approach to cybersecurity while implementing a cyber strategy. Additionally, you should lock down your Remote Desktop Protocols (RDP). If you haven’t done so already, your organisation should have a remediation plan in place.

Lastly and most importantly, you should partner with a reputable cybersecurity organisation. CommuniCloud is a 24/7 Security Operations Center as a Service (SOCaaS) platform that is proven to detect and monitor for all malware.

Ready to protect your company? Contact CommuniCloud sales for questions or a live product demo.



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