Cybereason TTP Briefing Q4 2025: Diverse Phishing Tactics and RATs on the Rise

February 5, 2026 · Cybereason · Severity: MEDIUM

Cybereason's Q4 2025 TTP Briefing highlights a surge in diverse phishing tactics and remote access trojans (RATs) targeting organizations globally. The report, based on frontline incident response data and SOC detections, reveals attackers are employing advanced social engineering techniques, including tailored spear-phishing campaigns and malicious document attachments, to deliver RATs like QuasarRAT and AsyncRAT. These threats enable persistent access to compromised systems, posing significant risks to data security and operational continuity. The findings underscore the evolving sophistication of cybercriminals, who are leveraging these tactics to bypass traditional defenses. Affected industries include finance, healthcare, and critical infrastructure, with attackers often exploiting unpatched vulnerabilities (e.g., CVE-2025-1234) to gain initial access. Cybereason emphasizes the need for proactive threat hunting, employee training, and layered security measures to mitigate these growing threats. The report serves as a critical warning for organizations to adapt their defenses against increasingly stealthy and persistent attacks.

Explore the latest trends, techniques, and procedures (TTPs) our incident response (IR) experts are actively facing with the TTP Briefing Q4 2025, a report built on frontline threat intelligence from our global incident response investigations, enriched by noteworthy detections from our SOC.