Adversaries have always relied on legitimate tools to carry out their attacks. These tools are already trusted by security solutions, which allows them to blend in with normal activity, maintain a low footprint, and make detection much harder for defenders. By using these legitimate tools, adversaries can carry out a wide range of actions, such as moving laterally across networks, establishing C2 channels, or maintaining persistence, all without triggering any alerts.
Category: Incident Response
Ivanti EPMM ‘Sleeper Shells’ not so sleepy?
In late January 2026, an advisory covering two remote code execution vulnerabilities (CVE-2026-1281 & CVE-2026-1340) in Ivanti Endpoint Manager Mobile (EPMM) was published. Shortly after, reports (in example by tenable) mentioned publicly available proof-of-concept exploits. On February 9th 2026, Defused published a blog post describing a specific webshell being deployed on EPMM devices via this … Continue reading Ivanti EPMM ‘Sleeper Shells’ not so sleepy?


