Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
39 detections
Filters
Last updated
All Time
Detection languages
14
14
5
4
2
Contributors
13
5
5
5
3
Categories
20,427
11,813
5,871
5,145
4,864
Platforms
33
5
1
Products / Services
15
8
6
5
5
MITRE Techniques
34
33
27
23
14
CVEs
1
IDS Classtypes
2
IDS Protocols
2
This rule detects the presence of the 'Unregister-ScheduledTask' PowerShell cmdlet within the HTTP response body. This could indicate an attacker attempting to remove persistence mechanisms, specifically scheduled tasks, from a compromised system after initial compromise or during cleanup phases. The detection is case-insensitive and looks for the command along with optional parameters like '-taskname' or '-taskpath'.
This rule detects the 'Stop-ScheduledTask' PowerShell cmdlet within the HTTP response body, indicating that a client on the internal network is receiving a command to stop a scheduled task. This could be part of an adversary's attempt to disable persistence mechanisms or disrupt system operations.
Detects scheduled task deletion events. Scheduled tasks are likely to be deleted if not used for persistence. Malicious Software often creates tasks directly under the root node e.g. \TASKNAME
Detects the deactivation or disabling of the Windows Scheduled Defragmentation task, which has been observed as a tactic used by the Slingshot APT group to hinder forensic analysis or system maintenance.
Detects the deactivation and disabling of the Scheduled defragmentation task using 'schtasks.exe /delete' or 'schtasks.exe /change' commands, specifically targeting the '\Microsoft\Windows\Defrag\ScheduledDefrag' task. This activity has been observed in campaigns by the Slingshot APT group.
The following analytic identifies the creation or deletion of scheduled tasks using the schtasks.exe utility with the -create or -delete flags. It leverages data from Endpoint Detection and Response (EDR) agents, focusing on process names and command-line executions. This activity is significant as it can indicate unauthorized system manipulation or malicious intent, often associated with threat actors like Dragonfly and incidents such as the SUNBURST attack. If confirmed malicious, this activity could allow attackers to execute code, escalate privileges, or persist within the environment, posing a significant security risk.
LemonDuck is an actively updated and robust malware primarily known for its botnet and cryptocurrency mining objectives. First discovered in 2019, LemonDuck has since adopted more sophisticated behavior and escalated its operations in 2021. Today, beyond using resources for its traditional bot and mining activities, LemonDuck steals credentials, removes security controls, spreads via emails, moves laterally, and ultimately drops more tools for human-operated activity.
Detects when a Kubernetes CronJob or Job is created, modified, or deleted. A Kubernetes Job creates one or more pods to accomplish a specific task, and a CronJob creates Jobs on a recurring schedule. An adversary can take advantage of this Kubernetes object to schedule Jobs to run containers that execute malicious code within a cluster, allowing them to achieve persistence.
This analytic detects a process attempting to delete or modify a scheduled task's Security Descriptor (SD) from its registry path. This activity is significant as it may indicate an attempt to remove evidence of a scheduled task for defense evasion. If confirmed malicious, it suggests an attacker with privileged access trying to hide their tracks, potentially compromising system integrity and security. Immediate investigation is required.
The analytic identifies the deletion of the Raccine Rules Updater scheduled task using the `schtasks.exe` command. This detection leverages data from Endpoint Detection and Response (EDR) agents, focusing on process names and command-line executions. This activity is significant because adversaries may delete this task to disable Raccine, a tool designed to prevent ransomware attacks. If confirmed malicious, this action could allow ransomware to execute without interference, leading to potential data encryption and loss.
The following analytic detects the creation and deletion of scheduled tasks within a short time frame (less than 30 seconds) using Windows Security EventCodes 4698 and 4699. This behavior is identified by analyzing Windows Security Event Logs. Such activity is significant as it may indicate lateral movement or remote code execution attempts by adversaries. If confirmed malicious, this could lead to unauthorized access, data exfiltration, or execution of malicious payloads, necessitating prompt investigation and response by security analysts.
This rule detects the creation, modification, or deletion of scheduled tasks using specific task names known to be associated with the SVR-attributed GraphicalProton backdoor. The task names are designed to mimic legitimate Windows services to evade detection.
Detects the execution of specific processes and command line combinations associated with the Forest Blizzard APT group. This includes the creation and deletion of scheduled tasks using 'schtasks.exe' and PowerShell commands for file operations, as described by Microsoft.
This rule detects the creation, modification, or deletion of scheduled tasks with specific names known to be used by the SVR-affiliated GraphicalProton backdoor. The rule monitors Windows Security Event IDs 4698 (A scheduled task was created), 4699 (A scheduled task was deleted), and 4702 (A scheduled task was updated) for a predefined list of suspicious task names.
Detects when adversaries delete important scheduled tasks related to system restore, Windows Defender, BitLocker, Windows Backup, Windows Update, Update Orchestrator, or Exploit Guard. This activity could indicate an attempt to disrupt system services or processes, potentially as a precursor to data destructive activities or to hinder defensive capabilities.
Detects when important scheduled tasks are deleted or disabled. Adversaries may delete or disable scheduled tasks to hinder defensive capabilities, stop legitimate services, or prevent forensic analysis. This rule specifically targets tasks related to system restore, Windows Defender, BitLocker, Windows Backup, and Windows Update, which are critical for system integrity and security.
Detects when adversaries delete important scheduled tasks using `schtasks.exe` to disrupt system functionality or security mechanisms. The rule specifically targets the deletion of tasks related to critical Windows components like BitLocker, ExploitGuard, SystemRestore, UpdateOrchestrator, Windows Defender, WindowsBackup, and WindowsUpdate, which can indicate an attempt to disable or interfere with essential system services or security features.
Detects the usage of 'schtasks.exe' with the '/delete' flag and the '/tn *' argument, which is used to delete all scheduled tasks on a local Windows system, including those created by other users. This activity can be indicative of an adversary attempting to disrupt system operations or remove forensic evidence.
Page 2 of 2