Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects potential C2Agent parent-spoofing behavior characterized by short-lived scheduled tasks (created and deleted within a 10-minute window with names matching c2a_<n>) or process relaunches carrying specific -fork2 command-line markers.
Detects when the same initiating process stops or deletes Windows services and subsequently deletes scheduled tasks or WMI event subscriptions within a 15-minute window on a single device, potentially indicating defense evasion or clean-up actions.
The following analytic detects the creation or deletion of scheduled tasks via schtasks.exe when invoked with create or delete flags, specifically focusing on those executions where the process includes additional parameters such as /tr, /sc, or /ru. The detection uses Endpoint Detection and Response (EDR) telemetry mapped to the Endpoint data model, and filters out events originating from trusted system paths like C:\Windows\System32 or C:\Program Files. It further narrows results to cases where schtasks.exe is launched by potentially suspicious parent processes such as cmd.exe, wscript.exe, or cscript.exe, and excludes service accounts. This behavior may indicate adversary efforts to gain persistence or evade detection by manipulating scheduled tasks using scripts or command shells. If confirmed malicious, such activity could lead to unauthorized code execution or the removal of monitoring mechanisms on endpoints.
Detects the removal of persistence mechanisms related to the 'ComponentTask33Agent' task, specifically the deletion of a scheduled task or registry Run key, followed by the deletion of associated files within specific Microsoft-themed AppData subdirectories within a 30-minute window.
Detects the use of the Windows schtasks utility to delete a scheduled task named 'Windows Update'. This pattern is associated with OpnKey ransomware, which attempts to remove legitimate or potentially competing tasks to maintain persistence or avoid detection.
This rule detects activities associated with the 'clean.sh' script often used by cryptocurrency miners to remove competing miner processes, terminate services, clear persistence mechanisms (cron jobs), and delete artifacts from temporary directories like /tmp, /var/tmp, or /dev/shm.
This rule detects activities associated with the 'clean.sh' script often used by cryptocurrency miners to remove competing miner processes, terminate services, clear persistence mechanisms (cron jobs), and delete artifacts from temporary directories like /tmp, /var/tmp, or /dev/shm.
This rule detects activities associated with the 'clean.sh' script often used by cryptocurrency miners to remove competing miner processes, terminate services, clear persistence mechanisms (cron jobs), and delete artifacts from temporary directories like /tmp, /var/tmp, or /dev/shm.
This rule detects activities associated with the 'clean.sh' script often used by cryptocurrency miners to remove competing miner processes, terminate services, clear persistence mechanisms (cron jobs), and delete artifacts from temporary directories like /tmp, /var/tmp, or /dev/shm.
This rule detects activities associated with the 'clean.sh' script often used by cryptocurrency miners to remove competing miner processes, terminate services, clear persistence mechanisms (cron jobs), and delete artifacts from temporary directories like /tmp, /var/tmp, or /dev/shm.
Detects instances where a Windows Scheduled Task is created (Event ID 4698) and subsequently deleted (Event ID 4699) within a very short timeframe (less than 120 seconds). This behavior is often indicative of an adversary creating a temporary task for execution and immediately cleaning up evidence to avoid detection.
Detects instances where a Windows Scheduled Task is created (Event ID 4698) and subsequently deleted (Event ID 4699) within a very short timeframe (less than 120 seconds). This behavior is often indicative of an adversary creating a temporary task for execution and immediately cleaning up evidence to avoid detection.
Detects process self-deletion (executable, scheduled task, or install directory) correlated within 60 minutes to a matching prior creation event, indicating post-execution cleanup behavior consistent with loader/RAT install-then-delete patterns such as those used by DOUBLECUP-delivered payloads.
Detects self-deleting process artifacts or deletion of a scheduled task named MicroUpdaterV1 shortly after its creation, indicative of loader cleanup behavior used by DOUBLECUP-related payloads.
Detects remote scheduled task creation, execution, or deletion via schtasks.exe with a suspicious task action.
Detects the Payouts King malware creating, running, or deleting specific scheduled tasks named \Mozilla\UpdateTask or \Mozilla\ElevateTask, as well as indirect execution of these tasks via cmd.exe redirection.
Detects malicious scheduled task activity attributed to the Payouts King threat actor. The rule monitors for the creation, execution, and deletion of tasks using specific naming conventions ('Mozilla\UpdateTask', 'Mozilla\ElevateTask') or patterns (e.g., /ru SYSTEM, /sc ONSTART) executed by non-standard parent processes.
Detects the creation, execution, or deletion of Windows scheduled tasks using 'Mozilla' task names (specifically '\Mozilla\UpdateTask' or '\Mozilla\ElevateTask'). The rule identifies tasks created with SYSTEM privileges and 'ONSTART' triggers via schtasks.exe, as well as associated administrative commands to run or delete these tasks, and correlates these with Security Event ID 4698.
Detects the creation and subsequent deletion of a scheduled task within a short timeframe (5 minutes), which can indicate an attacker attempting to cover their tracks after executing a malicious task.
Detects when adversaries try to stop system services or processes by deleting or disabling their respective scheduled tasks in order to conduct data destructive activities
Detects when adversaries stop services or processes by deleting or disabling their respective scheduled tasks in order to conduct data destructive activities
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