N-Able

Threat actors are actively exploiting a patch bypass vulnerability (CVE-2026-18577) in N-able N-central to gain administrative control and establish persistent remote access via Cloudflare tunnels.

This brief details the detection of DNS queries targeting commonly abused Remote Monitoring and Management (RMM) or remote access software domains, originating from non-browser processes, which is a common tactic for command and control, persistence, and lateral movement by threat actors.

Attackers may disable PowerShell Script Block Logging by modifying the registry to conceal their activities on the host and evade detection by setting the `EnableScriptBlockLogging` registry value to 0, impacting security monitoring and incident response capabilities.

Detection of DNS queries to remote monitoring and management (RMM) domains from non-browser processes indicating potential misuse of legitimate remote access tools for command and control.

Detects process creation events indicative of remote management tools, potentially signifying legitimate use or malicious exploitation by threat actors abusing RMM software.