Sigma Rules
799 rules found for "Microsoft"
Deployment Deleted From Kubernetes Cluster
Detects the removal of a deployment from a Kubernetes cluster. This could indicate disruptive activity aiming to impact business operations.
Kubernetes Events Deleted
Detects when events are deleted in Kubernetes. An adversary may delete Kubernetes events in an attempt to evade detection.
Potential Remote Command Execution In Pod Container
Detects attempts to execute remote commands, within a Pod's container using e.g. the "kubectl exec" command.
Container With A hostPath Mount Created
Detects creation of a container with a hostPath mount. A hostPath volume mounts a directory or a file from the node to the container. Attackers who have permissions to create a new pod in the cluster may create one with a writable hostPath volume and chroot to escape to the underlying node.
Creation Of Pod In System Namespace
Detects deployments of pods within the kube-system namespace, which could be intended to imitate system pods. System pods, created by controllers such as Deployments or DaemonSets have random suffixes in their names. Attackers can use this fact and name their backdoor pods as if they were created by these controllers to avoid detection. Deployment of such a backdoor container e.g. named kube-proxy-bv61v, could be attempted in the kube-system namespace alongside the other administrative containers.
Privileged Container Deployed
Detects the creation of a "privileged" container, an action which could be indicative of a threat actor mounting a container breakout attacks. A privileged container is a container that can access the host with all of the root capabilities of the host machine. This allows it to view, interact and modify processes, network operations, IPC calls, the file system, mount points, SELinux configurations etc. as the root user on the host. Various versions of "privileged" containers can be specified, e.g. by setting the securityContext.privileged flag in the resource specification, setting non-standard Linux capabilities, or configuring the hostNetwork/hostPID fields
Kubernetes Secrets Enumeration
Detects enumeration of Kubernetes secrets.
New Kubernetes Service Account Created
Detects creation of new Kubernetes service account, which could indicate an attacker's attempt to persist within a cluster.
Potential Sidecar Injection Into Running Deployment
Detects attempts to inject a sidecar container into a running deployment. A sidecar container is an additional container within a pod, that resides alongside the main container. One way to add containers to running resources like Deployments/DeamonSets/StatefulSets, is via a "kubectl patch" operation. By injecting a new container within a legitimate pod, an attacker can run their code and hide their activity, instead of running their own separated pod in the cluster.
Remote Schedule Task Lateral Movement via ATSvc
Detects remote RPC calls to create or execute a scheduled task via ATSvc
Remote Schedule Task Recon via AtScv
Detects remote RPC calls to read information about scheduled tasks via AtScv
Possible DCSync Attack
Detects remote RPC calls to MS-DRSR from non DC hosts, which could indicate DCSync / DCShadow attacks.
Remote Encrypting File System Abuse
Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR
Remote Schedule Task Lateral Movement via ITaskSchedulerService
Detects remote RPC calls to create or execute a scheduled task
Remote Schedule Task Recon via ITaskSchedulerService
Detects remote RPC calls to read information about scheduled tasks
Remote Printing Abuse for Lateral Movement
Detects remote RPC calls to possibly abuse remote printing service via MS-RPRN / MS-PAR
Remote DCOM/WMI Lateral Movement
Detects remote RPC calls that performs remote DCOM operations. These could be abused for lateral movement via DCOM or WMI.
Remote Registry Lateral Movement
Detects remote RPC calls to modify the registry and possible execute code
Remote Registry Recon
Detects remote RPC calls to collect information
Remote Server Service Abuse
Detects remote RPC calls to possibly abuse remote encryption service via MS-SRVS
Remote Server Service Abuse for Lateral Movement
Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR
Remote Schedule Task Lateral Movement via SASec
Detects remote RPC calls to create or execute a scheduled task via SASec
Recon Activity via SASec
Detects remote RPC calls to read information about scheduled tasks via SASec
SharpHound Recon Account Discovery
Detects remote RPC calls useb by SharpHound to map remote connections and local group membership.
SharpHound Recon Sessions
Detects remote RPC calls useb by SharpHound to map remote connections and local group membership.
Azure Application Deleted
Identifies when a application is deleted in Azure.
Azure Application Gateway Modified or Deleted
Identifies when a application gateway is modified or deleted.
Azure Application Security Group Modified or Deleted
Identifies when a application security group is modified or deleted.
Azure Container Registry Created or Deleted
Detects when a Container Registry is created or deleted.
Azure Device No Longer Managed or Compliant
Identifies when a device in azure is no longer managed or compliant
Azure Device or Configuration Modified or Deleted
Identifies when a device or device configuration in azure is modified or deleted.
Azure DNS Zone Modified or Deleted
Identifies when DNS zone is modified or deleted.
Azure Firewall Modified or Deleted
Identifies when a firewall is created, modified, or deleted.
Azure Firewall Rule Collection Modified or Deleted
Identifies when Rule Collections (Application, NAT, and Network) is being modified or deleted.
Azure Keyvault Key Modified or Deleted
Identifies when a Keyvault Key is modified or deleted in Azure.
Azure Key Vault Modified or Deleted
Identifies when a key vault is modified or deleted.
Azure Keyvault Secrets Modified or Deleted
Identifies when secrets are modified or deleted in Azure.
Azure Kubernetes Admission Controller
Identifies when an admission controller is executed in Azure Kubernetes. A Kubernetes Admission controller intercepts, and possibly modifies, requests to the Kubernetes API server. The behavior of this admission controller is determined by an admission webhook (MutatingAdmissionWebhook or ValidatingAdmissionWebhook) that the user deploys in the cluster. An adversary can use such webhooks as the MutatingAdmissionWebhook for obtaining persistence in the cluster. For example, attackers can intercept and modify the pod creation operations in the cluster and add their malicious container to every created pod. An adversary can use the webhook ValidatingAdmissionWebhook, which could be used to obtain access credentials. An adversary could use the webhook to intercept the requests to the API server, record secrets, and other sensitive information.
Azure Kubernetes Cluster Created or Deleted
Detects when a Azure Kubernetes Cluster is created or deleted.
Azure Kubernetes CronJob
Identifies when a Azure Kubernetes CronJob runs in Azure Cloud. Kubernetes Job is a controller that creates one or more pods and ensures that a specified number of them successfully terminate. Kubernetes Job can be used to run containers that perform finite tasks for batch jobs. Kubernetes CronJob is used to schedule Jobs. An Adversary may use Kubernetes CronJob for scheduling execution of malicious code that would run as a container in the cluster.
Azure Kubernetes Events Deleted
Detects when Events are deleted in Azure Kubernetes. An adversary may delete events in Azure Kubernetes in an attempt to evade detection.
Azure Kubernetes Network Policy Change
Identifies when a Azure Kubernetes network policy is modified or deleted.
Azure Kubernetes Pods Deleted
Identifies the deletion of Azure Kubernetes Pods.
Azure Kubernetes RoleBinding/ClusterRoleBinding Modified and Deleted
Detects the creation or patching of potential malicious RoleBinding/ClusterRoleBinding.
Azure Kubernetes Sensitive Role Access
Identifies when ClusterRoles/Roles are being modified or deleted.
Azure Kubernetes Secret or Config Object Access
Identifies when a Kubernetes account access a sensitive objects such as configmaps or secrets.
Azure Kubernetes Service Account Modified or Deleted
Identifies when a service account is modified or deleted.
Disabled MFA to Bypass Authentication Mechanisms
Detection for when multi factor authentication has been disabled, which might indicate a malicious activity to bypass authentication mechanisms.