Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects the creation of scheduled tasks using schtasks.exe or at.exe where the command line contains suspicious indicators such as execution from AppData/Temp directories, use of LOLBins (rundll32, regsvr32, powershell), encoded commands, or suspicious command-line patterns, specifically when the initiating process is not signed by Microsoft.
Detects the creation of scheduled tasks using schtasks.exe or at.exe by processes not signed by Microsoft. This behavior is often associated with adversary attempts to establish persistence by running code on a recurring basis or at specific times using native Windows utilities.
Detects the creation of scheduled tasks using schtasks.exe or at.exe by processes not signed by Microsoft. This behavior is often associated with adversary attempts to establish persistence by running code on a recurring basis or at specific times using native Windows utilities.
Detects AT job creation via SMB for remote scheduled execution
This rule detects the creation of scheduled tasks using `schtasks.exe` or `at.exe` with specific command-line arguments (`/create`, `/tn`, and either `/ru` or `/tr`). It then correlates these process events with registry events related to Task Scheduler keys or values containing "Task" to identify potential persistence mechanisms.
This rule detects the creation of scheduled tasks using `schtasks.exe` or `at.exe` with specific command-line arguments (`/create`, `/tn`, and either `/ru` or `/tr`). It then correlates these process events with registry events related to Task Scheduler keys or values containing "Task" to identify potential persistence mechanisms.
Detects the creation of remote scheduled tasks by monitoring access to the 'atsvc' named pipe over SMB. This activity is indicative of using tools like 'at.exe' or direct API calls to schedule tasks on a remote system, which can be leveraged for privilege escalation, execution, lateral movement, or persistence.
This rule detects the remote creation of scheduled tasks by monitoring access to the 'ATSVC' named pipe within the IPC$ share. Specifically, it looks for Event ID 5145, indicating a detailed file share access, where the ShareName is '\\*\IPC$', the RelativeTargetName is 'atsvc', and the AccessList contains 'WriteData'. This activity is characteristic of tools like 'at.exe' or direct API calls used to schedule tasks remotely.
Detects the creation of an interactive AT job, which can be used for privilege escalation or persistence. The rule specifically looks for the execution of 'at.exe' with the 'interactive' command-line argument.
The following analytic detects the creation of scheduled tasks on remote Windows endpoints using the at.exe command. This detection leverages Endpoint Detection and Response (EDR) telemetry, focusing on process creation events involving at.exe with remote command-line arguments. Identifying this activity is significant for a SOC as it may indicate lateral movement or remote code execution attempts by an attacker. If confirmed malicious, this activity could lead to unauthorized access, persistence, or execution of malicious code, potentially resulting in data theft or further compromise of the network.
Use this query to locate injected processes launching discovery activity. Qakbot has been observed leading to ransomware in numerous instances.
The following analytic detects the creation of a new DWORD value named "EnableAt" in the registry path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\Configuration". This modification enables the use of the at.exe or wmi Win32_ScheduledJob commands to add scheduled tasks on a Windows endpoint. The detection leverages registry event data from the Endpoint datamodel. This activity is significant because it may indicate that an attacker is enabling the ability to schedule tasks, potentially to execute malicious code at specific times or intervals. If confirmed malicious, this could allow persistent code execution on the system.