Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects the launch of specific utilities (like ntdsutil, vssadmin, diskshadow, esentutl) on key servers. These utilities can be used by adversaries to access or copy the Active Directory domain database (NTDS.dit) or inhibit system recovery, which are common techniques for credential dumping and persistence.
Detects when an Azure Kubernetes Cluster is created or deleted. This activity can indicate significant infrastructure changes, either legitimate or malicious. Monitoring these operations is crucial for maintaining the security and integrity of containerized environments.
Detects the removal of a deployment from a Kubernetes cluster. This could indicate disruptive activity aiming to impact business operations.
Detects suspicious log entries in Linux log files
Detects the execution of 'gpg.exe' or 'gpg2.exe' from uncommon locations. This activity is often associated with ransomware and loaders that use GnuPG for encrypting or decrypting data.
Detects the potential abuse of the Linux Magic SysRq (System Request) key by adversaries with root or sufficient privileges to silently manipulate or destabilize a system. By writing to /proc/sysrq-trigger, they can crash the system, kill processes, or disrupt forensic analysis—all while bypassing standard logging. Though intended for recovery and debugging, SysRq can be misused as a stealthy post-exploitation tool. It is controlled via /proc/sys/kernel/sysrq or permanently through /etc/sysctl.conf.
Detects the invocation of MS SQL transactions that are destructive towards table or database data, such as "DROP TABLE" or "DROP DATABASE".
Yara rule that detects VanHelsing ransomware.
Identifies when a Azure Kubernetes network policy is modified or deleted.
Detects suspicious log entries in Linux log files
Detects the execution of the "esxcli" command with the "vm" and "kill" flags, indicating an attempt to terminate or shut down a specific virtual machine on an ESXi hypervisor. This activity can be indicative of malicious actions such as ransomware attacks targeting virtualized environments.
Detects suspicious SQL query keywords that are often used during reconnaissance, data exfiltration, or destructive activities. This includes keywords like 'drop', 'truncate', 'dump', and 'select *', which can indicate attempts to manipulate database structures, extract sensitive information, or perform denial-of-service attacks.
Detects the removal of a deployment from a Kubernetes cluster.
This could indicate disruptive activity aiming to impact business operations.
This could indicate disruptive activity aiming to impact business operations.
Detects when a Container Registry is created or deleted.
Detects when a Azure Kubernetes Cluster is created or deleted.
Identifies when ClusterRoles/Roles are being modified or deleted.
Detects the creation or patching of potential malicious RoleBinding/ClusterRoleBinding.
Identifies when a Kubernetes account access a sensitive objects such as configmaps or secrets.
Identifies when a service account is modified or deleted.
Detects the execution of "gpg.exe" from uncommon location. Often used by ransomware and loaders to decrypt/encrypt data.
This rule detects attempts to delete Windows Volume Shadow Copies using PowerShell commands that interact with WMI (Windows Management Instrumentation). Specifically, it looks for PowerShell scripts containing `Get-WmiObject`, `gwmi`, `Get-CimInstance`, or `gcim` in conjunction with `Win32_ShadowCopy` and a deletion method like `.Delete()`, `Remove-WmiObject`, `rwmi`, `Remove-CimInstance`, or `rcim`. This technique is commonly employed by ransomware families, such as Sodinokibi/REvil, to prevent system recovery.
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