ATT&CK coverage › Technique
Domain or Tenant Policy Modification: Group Policy Modification T1484.001
Adversaries may modify Group Policy Objects (GPOs) to subvert the intended discretionary access controls for a domain, usually with the intention of escalating privileges on the domain. Group policy allows for centralized management of user and computer settings in Active Directory (AD). GPOs are containers for group policy settings made up of files stored within a predictable network path `\<DOMAIN>\SYSVOL\<DOMAIN>\Policies\`.
Events covered
6 catalog events are tagged with this technique by at least one rule.
Authoring guide
Patterns shared across the 15 rules above: which fields they filter on, what specific values they look for, and what they exclude. Field names are normalized across vendors so Sigma's Image, Elastic's process.name, and Splunk's process_name collapse into one row. Each rule contributes at most once per row.
Fields filtered most (16 distinct)
The fields most rules look at when detecting this technique. The How column shows the operators authors use (eq, wildcard, regex_match, match) and how often each appears. Sample values are concrete examples to start from, not an exhaustive list.
Top indicator values (55 distinct)
Specific (field, operator, value) combinations the rules check for, ranked by how many rules under this technique use each one. The Corpus reach column counts how many rules across the entire catalog (any technique) check the same combination. High numbers point to widely-used indicators that are likely noisy on their own; combine them with another condition for useful signal. Blank means the combination is specific to rules under this technique.
Common exclusions (4 distinct)
Field/operator/value combinations that rules under this technique routinely exclude (top-level not() clauses). These are the false-positive paths the community has learned to filter out. A new rule that ignores the high-count entries here will likely fire on the same noisy paths.
Rules under this technique
Every rule in the catalog tagged with this technique, grouped by vendor. Click a rule title for its full predicates, exclusions, and indicators.
Sigma 6 rules
- Group Policy Abuse for Privilege Addition
- Modify Group Policy Settings
- Modify Group Policy Settings - ScriptBlockLogging
- Startup/Logon Script Added to Group Policy Object
- Windows Default Domain GPO Modification
- Windows Default Domain GPO Modification via GPME
Elastic 3 rules
- Group Policy Abuse for Privilege Addition
- Scheduled Task Execution at Scale via GPO
- Startup/Logon Script added to Group Policy Object
Splunk 5 rules
- Windows AD GPO Deleted
- Windows AD GPO Disabled
- Windows AD GPO New CSE Addition
- Windows Default Group Policy Object Modified
- Windows Group Policy Object Created