Detection rules › Splunk

Windows Export Certificate

Author
Michael Haag, Splunk
Source
upstream

The following analytic detects the export of a certificate from the Windows Certificate Store. It leverages the Certificates Lifecycle log channel, specifically event ID 1007, to identify this activity. Monitoring certificate exports is crucial as certificates can be used for authentication to VPNs or private resources. If malicious actors export certificates, they could potentially gain unauthorized access to sensitive systems or data, leading to significant security breaches.

MITRE ATT&CK coverage

TacticTechniques
Credential AccessT1552.004 Unsecured Credentials: Private Keys, T1649 Steal or Forge Authentication Certificates

Event coverage

ProviderEvent IDTitle
CertificateServicesClient-Lifecycle-System1007A certificate has been exported.

Stages and Predicates

Stage 1: search

search EventCode=1007

Stage 2: xmlkv

xmlkv

Stage 3: stats

stats BY Computer, SubjectName, UserData_Xml

Stage 4: rename

rename

Stage 5: search

search

Stage 6: search

search

Stage 7: search

search `macro`

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.

FieldKindValues
EventCodeeq
  • 1007

Neighbors

Broader alternatives (more inclusive than this rule)

These rules match a superset of what this rule catches. They cover the same events plus more. Use them if you want wider coverage and can absorb more false positives.