Query: rule covering Detects the creation or patching of potential malicious RoleBinding. This includes RoleBindings and ClusterRoleBinding.
Matching passage: Sigma rule: Detects the creation or patching of potential malicious RoleBinding. This includes RoleBindings and ClusterRoleBinding.. Logsource: gcp / gcp.audit. Rule: title: Google Cloud Kubernetes RoleBinding id: 0322d9f2-289a-47c2-b5e1-b63c90901a3e status: test description: Detects the creation or patching of potential malicious RoleBinding. This includes RoleBindings and ClusterRoleBinding. references: - https://github.com/elastic/detection-rules/pull/1267 - https://kubernetes.io/docs/reference/kubernetes-api/authorization-resources/cluster-role-v1/#ClusterRole - https://cloud.google.com/kubernetes-engine/docs/how-to/role-based-access-control - https://kubernetes.io/docs/reference/access-authn-authz/rbac/ - https://cloud.google.com/kubernetes-engine/docs/how-to/audit-logging author: Austin Songer @austinsonger date: 2021-08-09 modified: 2022-10-09 tags: - attack.credential-access logsource: product: gcp service: gcp.audit detection: selection: gcp.audit.method_name: - io.k8s.authorization.rbac.v*.clusterrolebindings.create - io.k8s.authorization.rbac.v*.rolebindings.create - io.k8s.authorization.rbac.v*.clusterrolebindings.patch - io.k8s.authorization.rbac.v*.rolebindings.patch - io.k8s.authorization.rbac.v*.clusterrolebindings.update - io.k8s.authorization.rbac.v*.rolebindings.update - io.k8s.authorization.rbac.v*.clusterrolebindings.delete - io.k8s.authorization.rbac.v*.rolebindings.delete condition: selection falsepositives: - RoleBindings and ClusterRoleBinding being modified or deleted may be performed by a system administrator. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment. - RoleBindings and ClusterRoleBinding modified or deleted from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule. level: medium
Near-miss passage: Sigma rule: Detects network connections via finger.exe, which can be abused by threat actors to retrieve remote commands for executi. Logsource: windows / network_connection. Rule: title: Network Connection Initiated via Finger.EXE id: 2fdaf50b-9fd5-449f-ba69-f17248119af6 related: - id: c082c2b0-525b-4dbc-9a26-a57dc4692074 type: similar - id: af491bca-e752-4b44-9c86-df5680533dbc type: similar status: experimental description: 'Detects network connections via finger.exe, which can be abused by threat actors to retrieve remote commands for execution on Windows devices. In one ClickFix malware campaign, adversaries leveraged the finger protocol to fetch commands from a remote server. Since the finger utility is not commonly used in modern Windows environments, its presence already raises suspicion. Investigating such network connections can also help identify potential malicious infrastructure used by threat actors ' references: - https://www.bleepingcomputer.com/news/security/decades-old-finger-protocol-abused-in-clickfix-malware-attacks/ author: Swachchhanda Shrawan Poudel (Nextron Systems) date: 2025-11-19 tags: - attack.command-and-control - attack.t1071.004 - attack.execution - attack.t1059.003 logsource: category: network_connection product: windows detection: selection: Initiated: 'true' Image|endswith: \finger.exe condition: selection falsepositives: - Unlikely level: high