Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects the creation of Windows services immediately following a network logon event (Logon Type 3) using NTLM or Kerberos. The rule monitors for service names or file paths characteristic of PsExec-style remote execution tools, specifically focusing on suspicious paths (e.g., Temp, UNC paths) or file extensions (e.g., .bat, .ps1, .tmp) used by attackers to execute payloads laterally.
This rule performs a hunting activity across multiple telemetry sources (Network, Email, Endpoint) to detect known indicators of compromise (IOCs) associated with Anthropic threat intelligence reporting (September 2026). It looks for specific malware file names, command-line patterns, service installations, phishing email addresses, and C2 communication URLs.
Detects the presence of the known vulnerable GIGABYTE driver (gdrv.sys) used in Bring Your Own Vulnerable Driver (BYOVD) attacks to bypass security controls and facilitate kernel-mode execution, as associated with Settra ransomware campaigns.
This rule detects the presence, installation, or execution attempts of the known vulnerable GIGABYTE driver (gdrv.sys). Monitoring for this specific driver is a common practice to identify attempts to perform 'Bring Your Own Vulnerable Driver' (BYOVD) attacks, which can be used for kernel-mode code execution and privilege escalation.
Detects potential tampering with Windows Event Logs or audit services by correlating manual service stops or log clearing events (EventIDs 1100, 1102, 104, 7036, 7040) with a sudden, significant decrease in total event volume on the same host. The rule accounts for planned maintenance and legitimate event log service restarts to reduce noise.
Detects the use of bcdedit.exe to modify the boot configuration to enable 'safeboot' with 'network' (Safe Mode with Networking). This technique is often used by adversaries to bypass security software that may not load or function correctly in Safe Mode.
Detects the use of vulnerable kernel drivers, specifically TrueSight.sys and rentdrv2.sys, as part of a Bring Your Own Vulnerable Driver (BYOVD) technique. This activity, associated with DragonForce ransomware, involves registering or accessing these drivers and sending specific IOCTL codes (0x22E044 or 0x22E010) to terminate security software processes.
Detects the creation of a Windows scheduled task named 'Google Chrome Update' where the command-line action does not point to the legitimate GoogleUpdate.exe binary. This behavior is indicative of persistence mechanisms used by threat actors, notably the Kimsuky group, to masquerade malicious tasks as legitimate software updaters.
Detects the creation of suspicious scheduled tasks using either schtasks.exe or PowerShell's Register-ScheduledTask cmdlet. The rule specifically looks for masquerading attempts involving names like 'StandAloneOneDriveUpdater-2626', the usage of AtLogOn triggers, and the execution of the binary 'Automata-20.exe'.
Detects the execution of a scheduled task named 'MicrosoftEdgeUpdateTaskUserS-1-5-24' which triggers conhost.exe with the --headless argument or PowerShell with an EncodedCommand. This behavior is indicative of a malicious persistence mechanism masquerading as a legitimate Edge update task, specifically associated with the retrieval of payloads from the malicious domain 'indiatodays.org'.
Detects the creation or modification of scheduled tasks using the 'schtasks.exe' utility, specifically looking for indicators associated with persistence mechanisms such as task names or commands like 'StandAloneOneDriveUpdater-2626' and 'Automata-20.exe'.
This rule detects the installation or modification of ScreenConnect services on Windows endpoints. It monitors for the creation of services using 'sc.exe', process commands related to ScreenConnect setup executables, or registry modifications and service installations associated with specific ScreenConnect identifiers, often indicative of unauthorized remote management software installation.
This rule detects the creation of a scheduled task intended to run an executable named 'wsc_updata.exe' from a temporary directory, or identifies svchost.exe initiating a process from that location. Such behavior is indicative of potential persistence mechanisms where malicious actors attempt to run code from unauthorized or writable directories under the context of system processes or scheduled tasks.
Detects the creation or modification of a Windows service named 'ProcAuditManager' via registry keys or command-line utilities. This pattern is indicative of potential persistence mechanisms or service manipulation for malicious purposes.
Detects attempts to install or modify the 'WMI Provider Host' (WmiPrvSE) service, which is a common technique used by adversaries for persistence or to masquerade malicious activity. The rule monitors process execution, registry modifications, and service installation events specifically targeting this service name.
Detects the loading and service creation of the CcProtect/Alinubx kernel driver, a known technique for Bring Your Own Vulnerable Driver (BYOVD) attacks. The rule identifies suspicious characteristics such as file name mismatches, unauthorized product/company signatures, and the creation of services associated with this malicious driver family (e.g., NvFsFilter) to facilitate EDR/AV termination or privilege escalation.
This rule detects the potential bypassing of Protected Process Light (PPL) in Windows, characterized by kernel-mode driver activity (such as ObOpenObjectByPointer) correlated with the mass termination of security-related processes (e.g., Defender, CrowdStrike, SentinelOne). The correlation between driver-level object handle manipulation and the termination of protected security binaries is a strong indicator of an adversary attempting to disable EDR/AV protections via kernel exploitation or driver abuse.
Detects the installation and loading of a suspicious driver named 'NvFsFilter' (nvfsflt64.sys), accompanied by registry persistence and suspicious process termination events. This pattern is characteristic of a 'kill-loop' persistence mechanism where malicious drivers or services repeatedly terminate security agents (AV/EDR) to maintain a persistent foothold on the endpoint.
This rule detects potentially malicious activity involving the manipulation of Windows services using 'sc.exe' to stop or delete services, combined with the forceful termination of 'svchost.exe' processes via 'wmic.exe'. This pattern is often associated with adversaries attempting to disable security tools, logging agents, or other defensive mechanisms on an endpoint.
Detects potential tampering with Windows Event Logs or audit services by correlating manual service stops or log clearing events (EventIDs 1100, 1102, 104, 7036, 7040) with a sudden, significant decrease in total event volume on the same host. The rule accounts for planned maintenance and legitimate event log service restarts to reduce noise.
Detects potential tampering with Windows Event Logs or audit services by correlating manual service stops or log clearing events (EventIDs 1100, 1102, 104, 7036, 7040) with a sudden, significant decrease in total event volume on the same host. The rule accounts for planned maintenance and legitimate event log service restarts to reduce noise.
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