Query: Sigma YAML for windows / process_creation
Matching passage: Sigma rule: Detects nltest commands that can be used for information discovery. Logsource: windows / process_creation. Rule: title: Potential Recon Activity Via Nltest.EXE id: 5cc90652-4cbd-4241-aa3b-4b462fa5a248 related: - id: 410ad193-a728-4107-bc79-4419789fcbf8 type: similar - id: 903076ff-f442-475a-b667-4f246bcc203b type: similar - id: 77815820-246c-47b8-9741-e0def3f57308 type: obsolete status: test description: Detects nltest commands that can be used for information discovery references: - https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/cc731935(v=ws.11) - https://thedfirreport.com/2021/08/16/trickbot-leads-up-to-fake-1password-installation/ - https://thedfirreport.com/2020/10/18/ryuk-in-5-hours/ - https://book.hacktricks.xyz/windows/basic-cmd-for-pentesters - https://research.nccgroup.com/2022/08/19/back-in-black-unlocking-a-lockbit-3-0-ransomware-attack/ - https://eqllib.readthedocs.io/en/latest/analytics/03e231a6-74bc-467a-acb1-e5676b0fb55e.html - https://redcanary.com/blog/how-one-hospital-thwarted-a-ryuk-ransomware-outbreak/ - https://github.com/redcanaryco/atomic-red-team/blob/5360c9d9ffa3b25f6495f7a16e267b719eba2c37/atomics/T1482/T1482.md#atomic-test-2---windows---discover-domain-trusts-with-nltest author: Craig Young, oscd.community, Georg Lauenstein date: 2021-07-24 modified: 2023-12-15 tags: - attack.discovery - attack.t1016 - attack.t1482 logsource: category: process_creation product: windows detection: selection_nltest: - Image|endswith: \nltest.exe - OriginalFileName: nltestrk.exe selection_recon: - CommandLine|contains|all: - server - query - CommandLine|contains: - /user - all_trusts - 'dclist:' - 'dnsgetdc:' - domain_trusts - 'dsgetdc:' - parentdomain - trusted_domains condition: all of selection_* falsepositives: - Legitimate administration use but user and host must be investigated level: medium
Near-miss passage: Sigma rule: Detects execution of "reg.exe" commands with the "add" or "copy" flags on safe boot registry keys. Often used by attacke. Logsource: windows / process_creation. Rule: title: Add SafeBoot Keys Via Reg Utility id: d7662ff6-9e97-4596-a61d-9839e32dee8d related: - id: fc0e89b5-adb0-43c1-b749-c12a10ec37de type: similar status: test description: Detects execution of "reg.exe" commands with the "add" or "copy" flags on safe boot registry keys. Often used by attacker to allow the ransomware to work in safe mode as some security products do not references: - https://redacted.com/blog/bianlian-ransomware-gang-gives-it-a-go/ author: Nasreddine Bencherchali (Nextron Systems) date: 2022-09-02 modified: 2024-03-19 tags: - attack.defense-impairment - attack.t1685 logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: \reg.exe - OriginalFileName: reg.exe selection_safeboot: CommandLine|contains: \SYSTEM\CurrentControlSet\Control\SafeBoot selection_flag: CommandLine|contains: - ' copy ' - ' add ' condition: all of selection* falsepositives: - Unlikely level: high regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_reg_add_safeboot/info.yml