ResolverRAT Infection Mechanism: How Hackers Infiltrate Enterprise Networks

The infection mechanism of ResolverRAT involves a multi-stage process designed to evade detection and establish long-term access within a target system. Typically delivered via phishing emails or malicious Microsoft Office attachments, ResolverRAT uses macro-based scripts or exploit kits to gain an initial foothold. Once executed, it contacts a remote command-and-control (C2) server to download additional payloads and establish persistence. It may disable antivirus tools, escalate privileges, and inject code into legitimate processes to remain hidden. This stealthy behavior enables attackers to collect sensitive data, monitor activities, and manipulate system resources. Understanding ResolverRAT’s infection chain is critical to deploying effective cybersecurity defenses.

ResolverRAT Attacking Healthcare and Pharmaceutical Via Sophisticated Phishing Attacks

Shocking Rise: ResolverRAT Attacking Healthcare and Pharmaceutical Via Sophisticated Phishing Attacks

Ravi Jain
The source describes ResolverRAT, a sophisticated new remote access trojan identified in 2025 that primarily targets the healthcare and pharmaceutical industries. This malware is particularly dangerous because it executes solely in memory, employs advanced encryption, and utilizes unique loader architecture to evade detection by traditional security measures. ResolverRAT is disseminated through highly tailored, region-specific phishing emails containing fear-inducing narratives to trick recipients into downloading disguised executable files. The impact on healthcare is severe, potentially leading to data breaches, financial losses, and reputational damage due to the sensitive nature of patient data and research. The text suggests that combating this threat requires a multi-layered cybersecurity approach, including advanced monitoring, threat hunting, employee training, and robust endpoint detection and response tools. ... Read More