T1558.003 Kerberoasting
sub-techniqueEnterpriseAdversaries may abuse a valid Kerberos ticket-granting ticket (TGT) or sniff network traffic to obtain a ticket-granting service (TGS) ticket that may be vulnerable to Brute Force. Service principal names (SPNs) are used to uniquely identify each instance of a Windows service. To enable authentication, Kerberos requires that SPNs be associated with at least one service logon account (an account specifically tasked with running a service). Adversaries possessing a valid Kerberos ticket-granting ticket (TGT) may request one or more Kerberos ticket-granting service (TGS) service tickets for any SPN from a domain controller (DC). Portions of these tickets may be encrypted with the RC4 algorithm, meaning the Kerberos 5 TGS-REP etype 23 hash of the service account associated with the SPN is used as the private key and is thus vulnerable to offline Brute Force attacks that may expose plaintext credentials. This same behavior could be executed using service tickets captured from network traffic. Cracked hashes may enable Persistence, Privilege Escalation, and Lateral Movement via access to Valid Accounts.
platforms
Platforms this applies to.
tactics
ATT&CK tactics this technique serves.
sub-technique of
The broader entity this sits under.
mitigations
ATT&CK mitigations that reduce this.
detected by (4)
Data components that detect this.
countered by (D3FEND)
D3FEND countermeasures that counter this.
Detect
NIST CSF 2.0 — areas of relevance (Protect / Detect)
NIST CSF 2.0 areas this most relates to (evidence-ranked).
- PR.AAIdentity Management, Authentication, and Access Controlstrong · backed by 10 of 19 mapped controls
- PR.DSData Securitymoderate · backed by 6 of 19 mapped controls
- DE.CMContinuous Monitoringmoderate · backed by 5 of 19 mapped controls
Derived from MITRE CTID (Apache-2.0) and the NIST 800-53 ↔ CSF crosswalk (public domain). Indicative relevance along the Protect/Detect axis — not a compliance assessment or coverage claim.
mitigating controls (19)
Security controls that mitigate this.
attack patterns (1)
CAPEC attack patterns that exploit this.
groups (4)
Threat groups associated with this.
software (6)
Malware and tools associated with this.
campaigns (3)
Campaigns that use this.
Detected by (Sigma) (21)
Sigma detection rules related to this.
source
Where this definition is published.