Ransomware Landscape Establishes 'New Normal' of High Activity; Qilin and The Gentlemen Emerge as Top Groups in Q1 2026

Executive Summary

The ransomware ecosystem in the first quarter of 2026 has solidified at a sustained, high level of activity, establishing what researchers are calling a "new normal" for baseline risk. According to a Q1 2026 report from GuidePoint Security, overall attack volumes have remained steady when compared to the previous quarter and the same period last year. However, the hierarchy of threat actors is dynamic and evolving. The Qilin ransomware group was the most prolific, with 361 victims, but this marks a decline from their peak. In contrast, a relatively new group named The Gentlemen experienced a massive surge in activity, rising to become the second most active operator. The manufacturing industry continues to be the most heavily targeted sector.

Threat Overview

The key takeaway from Q1 2026 is that the high frequency of ransomware attacks is no longer a spike but a persistent condition. Organizations must now operate under the assumption that this elevated level of threat is constant.

While the overall volume is stable, the players are changing:

• Qilin: This group remains a top threat, known for its speed of execution. Barracuda's SOC reported mitigating a Qilin attack where the time from initial compromise to widespread file encryption was remarkably short, necessitating a rapid network-wide quarantine. Despite being the most active group with 361 victims, their activity has decreased by 25% compared to Q4 2025, which could indicate they are focusing on larger targets or facing disruption.
• The Gentlemen: This group is the quarter's breakout star. First appearing in August 2025, they dramatically increased their operational tempo, claiming 182 victims in Q1 2026, up from just 35 in the previous quarter. This rapid rise suggests they have a successful affiliate program or have found a particularly effective initial access method.
• Akira: A previously prominent group, Akira, saw its activity decline by 22%, indicating a potential loss of affiliates or law enforcement disruption.

Technical Analysis

The report focuses on trends rather than specific TTPs, but we can infer common ransomware attack patterns.

• Initial Access: Ransomware groups continue to rely on a mix of initial access vectors, including exploiting vulnerabilities in public-facing services (e.g., VPNs, RDP), phishing, and purchasing access from initial access brokers.
• Execution (T1059): Once inside, groups like Qilin are noted for their speed. This suggests a high degree of automation in their attack scripts for lateral movement, privilege escalation, and deployment of the ransomware encryptor.
• Impact (T1486 - Data Encrypted for Impact): The primary goal remains the encryption of critical data to force a ransom payment.
• Impact (T1490 - Inhibit System Recovery): Many modern ransomware strains also delete volume shadow copies or other backups on the local machine to hinder recovery efforts.
• Exfiltration (T1041): Double extortion is standard practice. Before encrypting data, groups exfiltrate sensitive files to a leak site, threatening to publish them if the ransom is not paid.

Impact Assessment

The manufacturing sector remains the most heavily impacted industry, likely due to a combination of high-value targets, perceived lower security maturity, and a low tolerance for downtime. The 44% year-over-year increase in attacks targeting the construction industry is notable, suggesting that ransomware groups are expanding their focus and identifying new sectors where operational disruption can be highly leveraged for payment. The 'new normal' of high attack volume means that organizations across all sectors must increase their investment in preventative controls, detection capabilities, and, critically, incident response and recovery planning.

Detection & Response

Detection Strategies:

• Behavioral Monitoring: Focus on detecting the TTPs common to all ransomware: lateral movement (PsExec, RDP), credential dumping (Mimikatz), and disabling security tools. EDR and network monitoring are key.
• Canary Files: Place decoy files (canaries) on file shares. An alert on the modification or encryption of these files can provide an early warning of a ransomware attack in progress.
• D3FEND: File Content Rules (D3-FCR): Monitor for the rapid creation of files with known ransomware extensions (.qilin, etc.) or the appearance of ransom notes on multiple systems.

Response Actions:

• Isolate: The moment ransomware activity is detected, isolate the affected hosts from the network to prevent further spread.
• Invoke IR Plan: Immediately activate the pre-defined incident response plan, which should include engaging legal counsel, incident response retainers, and notifying law enforcement.

Mitigation

Strategic Controls:

• Immutable Backups: Maintain multiple, segmented backups of critical data, with at least one copy being offline or immutable (e.g., in cloud object storage with object lock enabled). Regularly test your ability to restore from these backups.
• D3FEND: Software Update (D3-SU): Aggressively patch internet-facing systems and critical vulnerabilities. Many ransomware attacks still exploit old, known vulnerabilities.
• D3FEND: Multi-factor Authentication (D3-MFA): Enforce MFA on all remote access points (VPNs, RDP), cloud services, and privileged accounts. This is one of the most effective controls against initial access.