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BQTLock & GREENBLOOD Ransomware Attacking Organizations to Encrypt and Exfiltrate Data

Cybersecuritynews •Balaji N • February 11, 2026

Two sophisticated ransomware families, BQTLock and GREENBLOOD, have surfaced in the cybersecurity landscape, utilizing contrasting strategies to disrupt business operations and extort victims. While typical ransomware attacks often follow a predictable pattern of immediate encryption, these new strains demonstrate a dangerous evolution in tactic. BQTLock prioritizes stealth and espionage, effectively turning the initial infection into […]

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BQTLock and GREENBLOOD Ransomware Cause Significant Business Disruption BQTLock and GREENBLOOD are newly identified ransomware threats that have emerged, targeting businesses for rapid disruption. BQTLock employs stealth techniques, including credential theft and screen capture, while GREENBLOOD utilizes Go-based encryption for swift operational impact. Both ransomware types pose risks of data breaches alongside their primary ransomware functions. 4 sources 47

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BQTLock & GREENBLOOD Ransomware Attacking Organizations to Encrypt and Exfiltrate Data

The full story

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Attack Types (1)

MITRE ATT&CK (3)

Ransomware Groups (2)