Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Adversaries may establish persistence by executing malicious content triggered by user inactivity.
Screensavers are programs that execute after a configurable time of user inactivity and consist of Portable Executable (PE) files with a .scr file extension
Screensavers are programs that execute after a configurable time of user inactivity and consist of Portable Executable (PE) files with a .scr file extension
Adversaries may establish persistence by executing malicious content triggered by user inactivity.
Screensavers are programs that execute after a configurable time of user inactivity and consist of Portable Executable (PE) files with a .scr file extension
Screensavers are programs that execute after a configurable time of user inactivity and consist of Portable Executable (PE) files with a .scr file extension
This analytic detects modifications to the `SCRNSAVE.EXE` registry entry, which can indicate event-triggered execution via screensaver settings. This technique is often used for persistence or privilege escalation by adversaries. The rule specifically looks for changes to the registry path `*\Control Panel\Desktop\SCRNSAVE.EXE*` within the Endpoint data model. Such modifications are significant because they are a known method employed by APT groups and malware to maintain persistence or escalate privileges. If confirmed malicious, this activity could allow an attacker to execute arbitrary code with elevated privileges, leading to further system compromise and persistent access.
Detects modification of the registry key that specifies the path to the screensaver binary. This can be abused by adversaries to establish persistence or elevate privileges by executing malicious code when the screensaver activates.
Detects value modification of registry key containing path to binary used as screensaver.
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