Executive Summary
Since August 2024, the SafePay ransomware group has compromised at least 600 victims across critical infrastructure sectors in North America, South America, Europe, and Australia. Threat actors gain initial access by exploiting unpatched VPN and edge-device vulnerabilities—including CVE-2020-3259, CVE-2023-20269, CVE-2023-27532, CVE-2024-40711, and CVE-2024-40766—and through brute-force credential attacks using Mullvad VPN exit nodes. Once inside, actors employ living-off-the-land binaries (PsExec, WinRM, RDP), disable security tooling, escalate privileges via UAC bypass and token impersonation, and exfiltrate data with FileZilla, RClone, WinSCP, and Backblaze B2 before encrypting files with a hybrid ChaCha20/RSA scheme and demanding cryptocurrency ransoms.
SafePay ranked among the most active ransomware groups in 2026, demonstrating that double-extortion operations targeting unpatched edge devices and flat, under-segmented networks remain highly effective. The group's systematic abuse of legitimate administrative tools underscores a growing industry-wide challenge: distinguishing malicious LOTL activity from routine IT operations without robust east-west visibility and zero-trust segmentation controls.
Why This Matters Now
SafePay is actively targeting critical infrastructure in 2026, exploiting CVEs that have had patches available for years. With 600+ confirmed victims and double-extortion tactics, organizations lacking network segmentation, MFA on VPNs, and egress controls face immediate, material ransomware risk—regulators and cyber insurers are intensifying scrutiny of exactly these gaps.
Attack Path Analysis
SafePay threat actors gained initial access by exploiting unpatched VPN and edge device vulnerabilities (CVE-2020-3259, CVE-2023-20269, CVE-2023-27532, CVE-2024-40711, CVE-2024-40766) and using stolen credentials via Mullvad VPN IPs, bypassing perimeter controls. They then escalated privileges via UAC bypass and token impersonation, established persistence through account manipulation, used LOLBins (PsExec, WinRM, RDP) for lateral movement across the network, employed AnyDesk and TOR-based C2 channels for command and control, exfiltrated staged data using FileZilla, RClone, WinSCP, and cloud services such as OneDrive and Backblaze, and finally encrypted victim files using a ChaCha20-RSA hybrid scheme while deleting backups to maximize impact.
Kill Chain Progression
This analysis maps confirmed threat intelligence to the full cloud kill chain to show where defensive gaps would emerge as an attack progresses.
Initial Compromise
Description
SafePay actors exploited known CVEs in internet-facing VPN and edge devices (CVE-2020-3259, CVE-2023-20269, CVE-2023-27532, CVE-2024-40711, CVE-2024-40766) and used phished credentials tunneled through Mullvad VPN to gain authenticated access to victim networks. Automated scripts were also used to exploit public-facing applications at scale. CNSF Cloud Firewall (ACF) with URL/FQDN filtering and Inline IPS (Suricata) with CVE signature coverage could have detected and blocked exploit traffic and unauthorized inbound sessions at the network edge. CNSF Cloud Native Security Fabric inline enforcement would have provided real-time inspection to identify known-bad payloads and exploit patterns before they reached internal systems.
Related CVEs
CVE-2020-3259
CVSS 7.5A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to retrieve memory contents, which could lead to the disclosure of confidential information including credentials.
Affected Products:
Cisco Adaptive Security Appliance (ASA) Software – < 9.6.4.45, < 9.8.4.20, < 9.9.2.74, < 9.10.1.44, < 9.12.2.9, < 9.13.1.2
Cisco Firepower Threat Defense (FTD) Software – < 6.3.0.6, < 6.4.0.9, < 6.5.0.5
Exploit Status:
exploited in the wildCVE-2023-20269
CVSS 9.1A vulnerability in the remote access VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct a brute force attack in an attempt to identify valid username and password combinations or establish a clientless SSL VPN session with an unauthorized user, enabling authentication bypass via an alternate path.
Affected Products:
Cisco Adaptive Security Appliance (ASA) Software – < 9.16.4.42, < 9.17.1.43, < 9.18.3.39, < 9.19.1.12
Cisco Firepower Threat Defense (FTD) Software – < 7.0.6.1, < 7.2.5.1, < 7.3.1.1, < 7.4.1
Exploit Status:
exploited in the wildCVE-2023-27532
CVSS 7.5A vulnerability in Veeam Backup & Replication component allows unauthenticated users to request encrypted credentials and other sensitive data stored in the configuration database, potentially enabling remote code execution due to missing authentication for a critical function.
Affected Products:
Veeam Backup & Replication – < 12.0.0.1420, < 11.0.1.1261
Exploit Status:
exploited in the wildCVE-2024-40711
CVSS 9.8A deserialization of untrusted data vulnerability in Veeam Backup & Replication allows an unauthenticated attacker to achieve remote code execution on the backup server by sending a specially crafted request, exploiting the insecure deserialization of .NET objects.
Affected Products:
Veeam Backup & Replication – < 12.2.0.334
Exploit Status:
exploited in the wildCVE-2024-40766
CVSS 9.8An improper access control vulnerability in SonicWall SonicOS management access and SSLVPN could allow unauthorized remote users to gain access to resources or cause the firewall to crash, enabling privilege escalation and potential unauthorized access to sensitive network segments.
Affected Products:
SonicWall SonicOS – < 7.0.1-5035, < 7.1.1-7058, < 5.9.2.14-82sv
Exploit Status:
exploited in the wild
MITRE ATT&CK® Techniques
Exploit Public-Facing Application
External Remote Services
Brute Force
Valid Accounts
Account Manipulation
Create Account
Abuse Elevation Control Mechanism: Bypass User Account Control
Access Token Manipulation: Token Impersonation/Theft
Command and Scripting Interpreter: PowerShell
Command and Scripting Interpreter: Windows Command Shell
System Services: Service Execution
System Binary Proxy Execution
Obfuscated Files or Information: Software Packing
Indicator Removal: File Deletion
Disable or Modify Tools
Remote Services: Remote Desktop Protocol
Remote Services: SMB/Windows Admin Shares
Remote Services: Windows Remote Management
Use Alternate Authentication Material: Pass the Hash
OS Credential Dumping
Archive Collected Data: Archive via Utility
Archive Collected Data: Archive via Library
Network Share Discovery
Remote System Discovery
Network Service Discovery
Exfiltration Over Alternative Protocol
Exfiltration Over Web Service
Data Encrypted for Impact
Inhibit System Recovery
Service Stop
Potential Compliance Exposure
Mapping incident impact across multiple compliance frameworks.
NIST SP 800-53 Rev. 5 – Flaw Remediation, Vulnerability Scanning, and Information System Component Inventory
Control ID: SI-2 / RA-5 / CM-8
PCI DSS v4.0 – Vulnerability Management, Multi-Factor Authentication, and Automated Audit Log Anomaly Detection
Control ID: Requirement 6.3 / 8.4 / 10.7
NYDFS 23 NYCRR 500 – Penetration Testing, Access Privileges, Multi-Factor Authentication, and Training
Control ID: 500.5 / 500.7 / 500.12 / 500.14
DORA (Digital Operational Resilience Act) - EU Regulation 2022/2554 – ICT Security Policies, Backup and Recovery, and ICT-Related Incident Management
Control ID: Article 9 / Article 11 / Article 17
NIS2 Directive (EU) 2022/2555 – Risk Analysis, Incident Handling, Business Continuity, and Supply Chain Security
Control ID: Article 21(2)(a) / 21(2)(b) / 21(2)(c) / 21(2)(e)
CISA Zero Trust Maturity Model (ZTMM) 2.0 – Identity Verification, Micro-Segmentation, and Data Access Governance
Control ID: Identity Pillar - Advanced / Network Pillar - Initial / Data Pillar - Traditional
ISO/IEC 27001:2022 – Protection Against Malware, Data Leakage Prevention, Logging, and Monitoring Activities
Control ID: A.8.7 / A.8.12 / A.8.15 / A.8.16
Sector Implications
Industry-specific impact of the vulnerabilities, including operational, regulatory, and cloud security risks.
Government Administration
SafePay ransomware has directly targeted FCEB and SLTT government entities, exploiting VPN CVEs and using lateral movement via RDP and WinRM to encrypt critical administrative infrastructure and exfiltrate sensitive data.
Health Care / Life Sciences
SafePay's hybrid ChaCha20-RSA encryption and backup destruction via NAS reset poses catastrophic risk to healthcare, violating HIPAA.164.312 controls mapped across East-West Traffic Security and Zero Trust Segmentation validated capabilities.
Financial Services
SafePay's credential theft via Mimikatz, brute force attacks, and double-extortion targeting company revenue subsets directly threatens financial institutions subject to PCI 4.0 and capital markets compliance obligations identified in validated_info.
Information Technology/IT
IT sector faces critical exposure through SafePay's exploitation of CVE-2024-40711 deserialization and CVE-2024-40766 access control flaws, with LOTL techniques bypassing endpoint defenses across hybrid and multi-cloud environments requiring ZTMM controls.
Sources
- #StopRansomware: SafePay Ransomwarehttps://www.cisa.gov/news-events/cybersecurity-advisories/aa26-293aVerified
- CVE-2024-40711 Detail - NVD National Vulnerability Databasehttps://nvd.nist.gov/vuln/detail/CVE-2024-40711Verified
- CVE-2024-40766 Detail - NVD National Vulnerability Databasehttps://nvd.nist.gov/vuln/detail/CVE-2024-40766Verified
- CVE-2023-27532 Detail - NVD National Vulnerability Databasehttps://nvd.nist.gov/vuln/detail/CVE-2023-27532Verified
- CVE-2020-3259 Detail - NVD National Vulnerability Databasehttps://nvd.nist.gov/vuln/detail/CVE-2020-3259Verified
- CVE-2023-20269 Detail - NVD National Vulnerability Databasehttps://nvd.nist.gov/vuln/detail/CVE-2023-20269Verified
- Veeam Security Advisory: CVE-2024-40711 Remote Code Execution Vulnerabilityhttps://www.veeam.com/kb4649Verified
- SonicWall PSIRT Advisory: CVE-2024-40766 SonicOS Improper Access Control Vulnerabilityhttps://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0015Verified
- CISA Known Exploited Vulnerabilities Cataloghttps://www.cisa.gov/known-exploited-vulnerabilities-catalogVerified
- StopRansomware.gov - Central Ransomware Resources and Alertshttps://www.cisa.gov/stopransomwareVerified
- SafePay Ransomware Technical Analysis - Huntress Security Researchhttps://www.huntress.com/blog/safepay-ransomwareVerified
Frequently Asked Questions
Cloud Native Security Fabric Mitigations and ControlsCNSF
Based on the attack progression modeled above, these are the defensive controls that would constrain each stage.
Aviatrix Zero Trust CNSF is directly relevant to this SafePay incident because the attack chain relied heavily on unrestricted east-west movement, uncontrolled egress to cloud storage and TOR infrastructure, and the absence of identity-scoped workload boundaries. Had Zero Trust segmentation and inline enforcement been in place across the network fabric, the attacker's ability to pivot freely, exfiltrate at scale, and propagate ransomware across segments would likely have been significantly constrained.
Control: Cloud Native Security Fabric (CNSF)
Mitigation: Inline inspection and URL/FQDN filtering at the network edge would likely have reduced the reachability of exploit traffic targeting known-vulnerable edge devices, and anomalous inbound sessions originating from Mullvad VPN egress IPs could have been flagged or constrained before reaching internal systems.
Control: Zero Trust Segmentation
Mitigation: Identity-aware segmentation policies would likely have constrained the scope of resources reachable by elevated tokens, limiting how far a compromised account with escalated privileges could traverse the network fabric even after local privilege escalation succeeded.
Control: East-West Traffic Security
Mitigation: East-west traffic enforcement at the workload level would likely have reduced the number of internal hosts reachable from any single compromised endpoint, constraining the actors' ability to freely pivot using PsExec, WinRM, and RDP across segments that had no legitimate reason to communicate with one another.
Control: Multicloud Visibility & Control
Mitigation: Centralized traffic observability across the network fabric would likely have surfaced anomalous outbound connection patterns to TOR infrastructure and unexpected remote access tool traffic, enabling earlier detection of C2 activity and giving security teams a window to respond before full attacker control was established.
Control: Egress Security & Policy Enforcement
Mitigation: Outbound FQDN filtering and egress policy enforcement would likely have blocked or constrained unauthorized data transfers to personal cloud storage destinations like Backblaze B2 and OneDrive accounts not sanctioned by policy, reducing the volume of data the actors could successfully move out of the environment.
If prior segmentation and egress controls had constrained lateral movement and C2 channels in earlier stages, ransomware deployment would likely have been limited to a smaller number of reachable segments, reducing the total volume of encrypted assets and preserving isolated workloads from full-environment encryption.
Impact at a Glance
Affected Business Functions
- Critical Infrastructure Operational Technology (OT) Systems
- Enterprise IT Services and Network Operations
- Data Backup and Recovery Systems
- Remote Access and VPN Infrastructure
Estimated downtime: 18 days
Estimated loss: N/A
SafePay threat actors have impacted at least 600 confirmed victims across North America, South America, Europe, and Australia spanning multiple critical infrastructure sectors. Exfiltrated data categories include corporate financial records, proprietary business data, employee and customer personally identifiable information (PII), Active Directory credentials and authentication tokens, network topology and configuration files, and sensitive operational technology data. Double extortion is employed: encrypted data is held for ransom and exfiltrated data is published to a dedicated SafePay leak site if ransom is not paid. Backup data is systematically destroyed via NAS factory resets and Volume Shadow Copy deletion, eliminating recovery options without paying the ransom or restoring from offline backups. The breadth of victims across critical infrastructure sectors including healthcare, energy, and government elevates the regulatory and reputational exposure significantly.
Recommended Actions
Key Takeaways & Next Steps
- • Enforce Zero Trust Segmentation with identity-based microsegmentation policies (CNSF) to restrict lateral movement between workloads and prevent privilege escalation from cascading across the environment, directly countering SafePay's use of PsExec, WinRM, and RDP pivoting.
- • Deploy Egress Security & Policy Enforcement with FQDN filtering and outbound traffic controls (CNSF) to block unauthorized data transfers to personal cloud storage services such as OneDrive, Backblaze, and Mega, and to prevent C2 connectivity to TOR infrastructure used by SafePay actors.
- • Activate Multicloud Visibility & Control (CNSF) with centralized traffic observability and anomaly detection to identify suspicious internal flows, unauthorized remote access tool installations (AnyDesk, TeamViewer), and anomalous outbound connections before exfiltration occurs.
- • Implement Inline IPS with Suricata signature-based detection (CNSF) covering known CVEs exploited by SafePay (CVE-2020-3259, CVE-2023-20269, CVE-2023-27532, CVE-2024-40711, CVE-2024-40766) and exfiltration tool traffic patterns to block initial exploitation and data staging activity at the network layer.
- • Apply East-West Traffic Security controls (CNSF) to enforce workload-to-workload segmentation and monitor internal flows, ensuring that compromised hosts cannot freely communicate across network segments, limiting the blast radius of any successful initial access and containing ransomware propagation before encryption-at-scale occurs.



