Detection rules › Kusto Query Language
AdminSDHolder Modifications
'This query detects modification in the AdminSDHolder in the Active Directory which could indicate an attempt for persistence. AdminSDHolder Modification is a persistence technique in which an attacker abuses the SDProp process in Active Directory to establish a persistent backdoor to Active Directory. This query searches for the event id 5136 where the Object DN is AdminSDHolder. Ref: https://netwrix.com/en/cybersecurity-glossary/cyber-security-attacks/adminsdholder-attack/'
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Initial Access | T1078 Valid Accounts |
| Persistence | T1078 Valid Accounts |
| Privilege Escalation | T1078 Valid Accounts |
| Defense Evasion | T1078 Valid Accounts |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Security-Auditing | 5136 | A directory service object was modified. |
Stages and Predicates
Stage 1: source
SecurityEvent
Stage 2: where
and
EventData contains "<Data Name=\\\"ObjectDN\\\">CN=AdminSDHolder,CN=System"
EventID eq "5136"
Stage 3: parse
Stage 4: summarize
Stage 5: extend
Stage 6: extend
Stage 7: extend
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
EventData | contains |
|
EventID | eq |
|