Query: write Sigma for Detects potential Kubernetes enumeration or attack activity via the audit log. This includes the execution of common she
Matching passage: Sigma rule: Detects potential Kubernetes enumeration or attack activity via the audit log. This includes the execution of common she. Logsource: kubernetes / audit. Rule: title: Kubernetes Potential Enumeration Activity id: 597a7e84-187d-458b-9e4f-2f5a0e676711 status: experimental description: 'Detects potential Kubernetes enumeration or attack activity via the audit log. This includes the execution of common shells, utilities, or specialized tools like ''Rakkess'' (access_matrix) and ''TruffleHog'' via Kubernetes API requests. Attackers use these methods to perform reconnaissance (enumeration), secret harvesting, or execute code (exec) within a cluster. ' references: - https://www.nccgroup.com/research/detection-engineering-for-kubernetes-clusters/ - https://github.com/trufflesecurity/trufflehog - https://github.com/corneliusweig/rakkess author: uniqu3-us3r date: 2026-04-28 tags: - attack.execution - attack.discovery - attack.t1609 - attack.t1613 logsource: product: kubernetes service: audit detection: selection_status: responseStatus.code: ALLOW selection_request_uri: requestURI|contains: - '%2fbin%2fash' - '%2fbin%2fbash' - '%2fbin%2fbusybox' - '%2fbin%2fdash' - '%2fbin%2fsh' - '%2fbin%2fzsh' - /bin/ash - /bin/bash - /bin/busybox - /bin/dash - /bin/sh - /bin/zsh - '%2fusr%2fbin%2fcurl' - '%2fusr%2fbin%2fkubectl' - '%2fusr%2fbin%2fperl' - '%2fusr%2fbin%2fpython' - '%2fusr%2fbin%2fwget' - /usr/bin/curl - /usr/bin/kubectl - /usr/bin/perl - /usr/bin/python - /usr/bin/wget selection_request_user_agent: userAgent|contains: - access_matrix - trufflehog - azurehound - micro-scanner condition: selection_status and 1 of selection_request_* falsepositives: - Authorized administrative maintenance via kubectl - Automated internal infrastructure monitoring and certificate rotation - Security-approved vulnerability or secret scanning in DevSecOps pipelines level: medium
Near-miss passage: Sigma rule: Detects the removal of folders from the "ProtectedFolders" list of of exploit guard. This could indicate an attacker try. Logsource: windows / registry_delete. Rule: title: Folder Removed From Exploit Guard ProtectedFolders List - Registry id: 272e55a4-9e6b-4211-acb6-78f51f0b1b40 status: test description: Detects the removal of folders from the "ProtectedFolders" list of of exploit guard. This could indicate an attacker trying to launch an encryption process or trying to manipulate data inside of the protected folder references: - https://www.microsoft.com/security/blog/2017/10/23/windows-defender-exploit-guard-reduce-the-attack-surface-against-next-generation-malware/ author: Nasreddine Bencherchali (Nextron Systems) date: 2022-08-05 modified: 2023-02-08 tags: - attack.defense-impairment - attack.t1685 logsource: category: registry_delete product: windows detection: selection: EventType: DeleteValue TargetObject|contains: SOFTWARE\Microsoft\Windows Defender\Windows Defender Exploit Guard\Controlled Folder Access\ProtectedFolders condition: selection falsepositives: - Legitimate administrators removing applications (should always be investigated) level: high