Query: Sigma rule for Detects usage of the "cipher" built-in utility in order to overwrite deleted data from disk. Adversaries may destroy dat
Matching passage: Sigma rule: Detects usage of the "cipher" built-in utility in order to overwrite deleted data from disk. Adversaries may destroy dat. Logsource: windows / process_creation. Rule: title: Deleted Data Overwritten Via Cipher.EXE id: 4b046706-5789-4673-b111-66f25fe99534 status: test description: 'Detects usage of the "cipher" built-in utility in order to overwrite deleted data from disk. Adversaries may destroy data and files on specific systems or in large numbers on a network to interrupt availability to systems, services, and network resources. Data destruction is likely to render stored data irrecoverable by forensic techniques through overwriting files or data on local and remote drives ' references: - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1485/T1485.md#atomic-test-3---overwrite-deleted-data-on-c-drive author: frack113 date: 2021-12-26 modified: 2023-02-21 tags: - attack.impact - attack.t1485 logsource: category: process_creation product: windows detection: selection_img: - OriginalFileName: CIPHER.EXE - Image|endswith: \cipher.exe selection_cli: CommandLine|contains: ' /w:' condition: all of selection_* falsepositives: - Unknown level: medium regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_cipher_overwrite_deleted_data/info.yml simulation: - type: atomic-red-team name: Overwrite deleted data on C drive technique: T1485 atomic_guid: 321fd25e-0007-417f-adec-33232252be19
Near-miss passage: Sigma rule: Detect modification of the User Shell Folders registry values for Startup or Common Startup which could indicate persist. Logsource: windows / registry_set. Rule: title: Modify User Shell Folders Startup Value id: 9c226817-8dc9-46c2-a58d-66655aafd7dc related: - id: 8f3ab69a-aa22-4943-aa58-e0a52fdf6818 type: similar status: test description: 'Detect modification of the User Shell Folders registry values for Startup or Common Startup which could indicate persistence attempts. Attackers may modify User Shell Folders registry keys to point to malicious executables or scripts that will be executed during startup. This technique is often used to maintain persistence on a compromised system by ensuring that the malicious payload is executed automatically. ' references: - https://github.com/redcanaryco/atomic-red-team/blob/9e5b12c4912c07562aec7500447b11fa3e17e254/atomics/T1547.001/T1547.001.md - https://www.welivesecurity.com/en/eset-research/muddywater-snakes-riverbank/ author: frack113, Swachchhanda Shrawan Poudel (Nextron Systems) date: 2022-10-01 modified: 2026-01-05 tags: - attack.persistence - attack.privilege-escalation - attack.t1547.001 logsource: product: windows category: registry_set detection: selection: TargetObject|contains: - SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders - SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders TargetObject|endswith: - \Common Startup - \Startup filter_main_details_null: Details: null filter_main_programdata_startup: Details|contains: - C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup - '%ProgramData%\Microsoft\Windows\Start Menu\Programs\Startup' filter_main_userprofile_startup_1: Details|contains: - '%USERPROFILE%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup' - '%%USERPROFILE%%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup' filter_main_userprofile_startup_2: Details|contains|all: - C:\Users\ - \AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup condition: selection and not 1 of filter_main_* falsepositives: - Unknown level: high regression_tests_path: regression_data/rules/windows/registry/registry_set/registry_set_susp_user_shell_folders/info.yml simulation: - type: atomic-red-team name: Change Startup Folder - HKLM Modify User Shell Folders Common Startup Value technique: T1547.001 atomic_guid: acfef903-7662-447e-a391-9c91c2f00f7b