Query: Sigma YAML for linux / process_creation
Matching passage: Sigma rule: Detects potential container discovery via listing of certain kernel features in the "/proc" virtual filesystem. Logsource: linux / process_creation. Rule: title: Container Residence Discovery Via Proc Virtual FS id: 746c86fb-ccda-4816-8997-01386263acc4 status: test description: Detects potential container discovery via listing of certain kernel features in the "/proc" virtual filesystem references: - https://blog.skyplabs.net/posts/container-detection/ - https://stackoverflow.com/questions/20010199/how-to-determine-if-a-process-runs-inside-lxc-docker tags: - attack.discovery - attack.t1082 author: Seth Hanford date: 2023-08-23 logsource: category: process_creation product: linux detection: selection_tools: Image|endswith: - awk - /cat - grep - /head - /less - /more - /nl - /tail selection_procfs_kthreadd: CommandLine|contains: /proc/2/ selection_procfs_target: CommandLine|contains: /proc/ CommandLine|endswith: - /cgroup - /sched condition: selection_tools and 1 of selection_procfs_* falsepositives: - Legitimate system administrator usage of these commands - Some container tools or deployments may use these techniques natively to determine how they proceed with execution, and will need to be filtered level: low
Near-miss passage: Sigma rule: Detects the usage of "reg.exe" in order to dump sensitive registry hives. This includes SAM, SYSTEM and SECURITY hives.. Logsource: windows / process_creation. Rule: title: Dumping of Sensitive Hives Via Reg.EXE id: fd877b94-9bb5-4191-bb25-d79cbd93c167 related: - id: 038cd51c-3ad8-41c5-ba8f-5d1c92f3cc1e type: obsolete - id: 4d6c9da1-318b-4edf-bcea-b6c93fa98fd0 type: obsolete status: test description: Detects the usage of "reg.exe" in order to dump sensitive registry hives. This includes SAM, SYSTEM and SECURITY hives. references: - https://www.slideshare.net/heirhabarov/hunting-for-credentials-dumping-in-windows-environment - https://eqllib.readthedocs.io/en/latest/analytics/aed95fc6-5e3f-49dc-8b35-06508613f979.html - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1003/T1003.md - https://www.wietzebeukema.nl/blog/windows-command-line-obfuscation - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1003.002/T1003.002.md#atomic-test-1---registry-dump-of-sam-creds-and-secrets author: Teymur Kheirkhabarov, Endgame, JHasenbusch, Daniil Yugoslavskiy, oscd.community, frack113 date: 2019-10-22 modified: 2023-12-13 tags: - attack.credential-access - attack.t1003.002 - attack.t1003.004 - attack.t1003.005 - car.2013-07-001 logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: \reg.exe - OriginalFileName: reg.exe selection_cli_flag: CommandLine|contains: - ' save ' - ' export ' - ' ˢave ' - ' eˣport ' selection_cli_hklm: CommandLine|contains: - hklm - hk˪m - hkey_local_machine - hkey_˪ocal_machine - hkey_loca˪_machine - hkey_˪oca˪_machine selection_cli_hive: CommandLine|contains: - \system - \sam - \security - \ˢystem - \syˢtem - \ˢyˢtem - \ˢam - \ˢecurity condition: all of selection_* falsepositives: - Dumping hives for legitimate purpouse i.e. backup or forensic investigation level: high