Techniques › T1547 › T1547.003
T1547.003 Time Providers
persistence · privilege escalation — Windows · attack.mitre.org · JSON
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MITRE detection strategy
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analytics
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Sigma rules tagged attack.t1547.003
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KEV CVEs mapped here
<p>Adversaries may abuse time providers to execute DLLs when the system boots. The Windows Time service (W32Time) enables time synchronization across and within domains. W32Time time providers are responsible for retrieving time stamps from hardware/network resources and outputting these values to other network clients.</p><p>Time providers are implemented as dynamic-link libraries (DLLs) that are registered in the subkeys of
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\W32Time\TimeProviders\. The time provider manager, directed by the service control manager, loads and starts time providers listed and enabled under this key at system startup and/or whenever parameters are changed.</p><p>Adversaries may abuse this architecture to establish persistence, specifically by creating a new arbitrarily named subkey pointing to a malicious DLL in the DllName value. Administrator privileges are required for time provider registration, though execution will run in context of the Local Service account.</p>KEV CVEs mapped to this technique · CTID Mappings Explorer
None. No KEV entry in the public mapping names this technique. Given that 74.7% of KEV has no mapping at all, this says more about the mapping than about the technique.
Detection strategy · ATT&CK Enterprise v19.2
- DET0122 Detect Abuse of Windows Time Providers for Persistence v1.0
AN0341 WindowsBehavioral correlation of privileged registry key creation under the W32Time TimeProviders path combined with a new DLL written to disk and potential process activity by LocalService. Indicates abuse of Time Providers for persistence.Tunable:
RegistryPathScopeUserContextTimeWindowDllPathEntropyThreshold
Sigma rules · SigmaHQ da9bb07d64, tag attack.t1547.003
Author: frack113
· 2022-06-19 (modified 2024-03-26) · logsource: product=windows category=registry_set · e88a6ddc-74f7-463b-9b26-f69fc0d2ce85
Detects processes setting a new DLL in DllName in under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProvider.
Adversaries may abuse time providers to execute DLLs when the system boots.
The Windows Time service (W32Time) enables time synchronization across and within domains.
Rules tagged at the parent level (attack.t1547) 7
These target the parent technique, not this sub-technique specifically. Listed for completeness, not counted as coverage.
Author: Elastic, Josh Nickels, Marius Rothenbücher
· 2024-09-06 · logsource: product=windows service=security · 123e4e6d-b123-48f8-b261-7214938acaf0
Detects the modification of Group Policy Objects (GPO) to add a startup/logon script to users or computer objects.
Author: frack113
· 2021-11-18 (modified 2022-12-06) · logsource: product=windows category=registry_event · 277efb8f-60be-4f10-b4d3-037802f37167
Detects persistence registry keys for Recycle Bin
Author: Mateusz Wydra, oscd.community
· 2020-10-13 (modified 2023-01-19) · logsource: product=windows category=registry_event · 9577edbb-851f-4243-8c91-1d5b50c1a39b
Detects creation/modification of Assistive Technology applications and persistence with usage of 'at'
Author: Hai Vaknin @LuxNoBulIshit, Avihay eldad @aloneliassaf, Austin Songer @austinsonger
· 2021-09-30 (modified 2022-10-09) · logsource: product=windows category=process_creation · a2ea3ae7-d3d0-40a0-a55c-25a45c87cac1
Detects when a possible suspicious driver is being installed via pnputil.exe lolbin
Author: Greg (rule)
· 2022-07-21 (modified 2023-01-05) · logsource: product=windows category=file_event · a6976974-ea6f-4e97-818e-ea08625c52cb
Detects a phishing attack which expands a ZIP file containing a malicious shortcut.
If the victim expands the ZIP file via the explorer process, then the explorer process expands the malicious ZIP file and drops a malicious shortcut redirected to a backdoor into the Startup folder.
Additionally, the file name of the malicious shortcut in Startup folder contains {0AFACED1-E828-11D1-9187-B532F1E9575D} meaning the folder shortcut operation.
Author: omkar72
· 2020-10-30 (modified 2021-11-27) · logsource: product=windows category=registry_event · b98968aa-dbc0-4a9c-ac35-108363cbf8d5
Detects potential malicious modification of run keys by winekey or team9 backdoor
Author: Florian Roth (Nextron Systems)
· 2022-05-19 · logsource: product=windows category=process_creation · f14e169e-9978-4c69-acb3-1cff8200bc36
Detects the suspicious execution of a utility to convert Windows 3.x .grp files or for persistence purposes by malicious software or actors