Query: detect Change to authentication method could be an indicator of an attacker adding an auth method to the account so they can ha in logs
Matching passage: Sigma rule: Change to authentication method could be an indicator of an attacker adding an auth method to the account so they can ha. Logsource: azure / auditlogs. Rule: title: Change to Authentication Method id: 4d78a000-ab52-4564-88a5-7ab5242b20c7 status: test description: Change to authentication method could be an indicator of an attacker adding an auth method to the account so they can have continued access. references: - https://learn.microsoft.com/en-us/entra/architecture/security-operations-privileged-accounts author: AlertIQ date: 2021-10-10 modified: 2022-12-25 tags: - attack.privilege-escalation - attack.credential-access - attack.defense-impairment - attack.t1556 - attack.persistence - attack.t1098 logsource: product: azure service: auditlogs detection: selection: LoggedByService: Authentication Methods Category: UserManagement OperationName: User registered security info condition: selection falsepositives: - Unknown level: medium
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