RansomHub Ransomware: What Businesses Need to Know About This Rising Threat
- Neil Hare-Brown
- Apr 11
- 2 min read
RansomHub is an emerging ransomware group that has quickly gained attention for its high-impact attacks and aggressive extortion model.
Thought to have taken over infrastructure or affiliates from now-defunct groups like ALPHV/BlackCat, RansomHub represents the evolving nature of the ransomware ecosystem—where tools, tactics, and even entire affiliate networks can quickly shift from one brand to another.
At STORM Guidance, we help businesses navigate complex ransomware threats by responding swiftly, recovering securely, and strengthening long-term cyber resilience.
Who Is RansomHub and How Do They Operate?
While still relatively new, RansomHub appears to be a ransomware-as-a-service (RaaS) operation, offering its platform to cybercriminal affiliates.
These affiliates conduct attacks using RansomHub’s malware and infrastructure, splitting any ransom payments with the group.
Common tactics include:
Gaining initial access through phishing campaigns or credential theft
Exfiltrating sensitive data for double extortion
Encrypting systems across networks, often using custom-built or repurposed ransomware tools
Publishing victim names and data leaks on their dark web leak site to increase pressure
Their leak site and extortion tactics strongly resemble those of ALPHV/BlackCat, leading many researchers to believe the group is either a rebrand or a takeover of existing criminal assets.
Who Does RansomHub Target?
RansomHub appears to be opportunistic but increasingly strategic, focusing on:
Mid-size to large enterprises
Sectors with valuable data such as healthcare, law, retail, and tech
Businesses with exposed or vulnerable infrastructure, such as open RDP or VPN access
As with other RaaS groups, affiliate behaviour can vary—so attack techniques may evolve quickly.
How to Protect Your Business from RansomHub Ransomware
✅ Patch vulnerabilities across VPNs, firewalls, and third-party software
✅ Enforce least-privilege access and use strong authentication across systems
✅ Monitor outbound traffic to detect data exfiltration attempts
✅ Back up critical systems regularly—and test your recovery plans
✅ Run phishing simulations and staff awareness training frequently
What to Do If You’ve Been Targeted by RansomHub
If you believe RansomHub is behind a ransomware incident in your organisation:
Disconnect affected systems from the network immediately
Preserve evidence, including ransom notes and network logs
Contact a professional ransomware response team without delay
STORM Guidance supports businesses by:
✔ Containing the threat and assessing the full impact
✔ Managing data recovery, legal obligations, and communications
✔ Supporting informed decisions on ransom negotiation, if needed
✔ Strengthening defences to prevent future attacks
RansomHub: A Case Study in the Changing Ransomware Landscape
As legacy ransomware groups disband or rebrand, new players like RansomHub are quick to fill the gap—often with enhanced capabilities and broader reach.
Businesses must remain proactive, monitor evolving threats, and ensure their incident response plans are tested and ready.
STORM Guidance is here to support you through every stage of defence, response, and recovery.
