The ransomware landscape has shifted. Attackers now treat backup infrastructure as a primary target. This report covers the threats, trends, and techniques defining 2025.
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Key Findings
Elastio threat research telemetry and industry data, covering backup-targeting ransomware trends.
Threat Actor Profiles
Ransomware groups actively targeting backup infrastructure this year.
| Group | Variant | Sectors | First Seen | Severity |
|---|---|---|---|---|
| LockBit 4.0 | LockBit Black, LockBit Green | Healthcare, Financial Services, Manufacturing | Q1 2025 | critical |
| BlackSuit | Royal rebrand | Critical Infrastructure, Government, Education | Q4 2024 | critical |
| Akira | Akira_v2 | Small & Mid-size Enterprises, Professional Services | Major 2025 variant | high |
| Medusa | MedusaLocker 2025 | Healthcare, Legal, Financial Services | Q2 2025 | critical |
| RansomHub | RaaS Collective | Cross-sector, Managed Service Providers | Q1 2025 | high |
2025 Threat Trends
The techniques and patterns that security teams need to address now.
Threat actors are using large language models to rapidly generate polymorphic ransomware variants, reducing the development cycle from months to days and evading signature-based detection.
Over 70% of ransomware attacks in 2025 explicitly target backup systems before encrypting production data, making backup integrity validation an essential security control.
Attackers are compromising backup software vendors and MSP management platforms to gain access to thousands of downstream backup environments simultaneously.
Ransomware increasingly uses dormancy periods of 14 to 45 days, silently corrupting backup snapshots across retention windows before triggering visible encryption.
New attack techniques exploit cloud IAM misconfigurations to modify or delete EBS snapshots, S3 Object Lock policies, and cross-region replication targets.
DORA, SEC disclosure rules, and NYDFS 500 amendments now require organizations to demonstrate provable recovery capability, not just backup existence.
Quarterly Timeline
Key events shaping the ransomware threat landscape, quarter by quarter.
LockBit 4.0 variant emerges with enhanced backup-targeting capabilities
Major healthcare breach via compromised Veeam backup admin credentials
CISA issues advisory on ransomware targeting immutable storage platforms
Medusa triple-extortion campaign hits 200+ organizations globally
First documented attack using AI-generated polymorphic ransomware payload
SEC fines three public companies for inadequate recovery capability disclosure
RansomHub RaaS platform surpasses 1,000 affiliates
Supply chain attack compromises popular MSP backup management tool
NIST releases updated Ransomware Risk Management framework (SP 1800-26 Rev.2)
BlackSuit targets critical infrastructure across 12 countries simultaneously
Cloud-native snapshot manipulation attacks increase 280% QoQ
DORA enforcement begins with first compliance penalties in EU financial sector
Elastio
The Hunt Engine detects ransomware inside your data before you need to recover.