Add Active Directory / Kerberos attack detection rules#6093
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Fixes SigmahqTagsTechniquesWithoutTacticsIssue: technique tags require their full set of mapped tactics. - t1557.001: add attack.collection (ntlm_relay, coercion_named_pipe) - t1078.002: add attack.initial-access, attack.persistence, attack.stealth (adcs_esc1, nopac)
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Summary of the Pull Request
Adds detection coverage for several common Active Directory and Kerberos attacks that were not yet covered, primarily via the Windows Security event log. Includes named-CVE techniques (Zerologon CVE-2020-1472, noPac CVE-2021-42278/42287), AD CS ESC1, authentication coercion, NTLM relay of machine accounts, Kerberos DES downgrade, MachineAccountQuota abuse, and Resource-Based Constrained Delegation (RBCD) attribute modification.
Changelog
new: Certificate-Based TGT Request for User Account - Potential ADCS ESC1 Abuse
new: Authentication Coercion via Named Pipe Access by Anonymous Logon
new: Computer Account Created by User Account - Potential MachineAccountQuota Abuse
new: Kerberos DES Encryption Downgrade - Potential Forged Ticket
new: Machine Account sAMAccountName Spoofing - Potential noPac (CVE-2021-42278)
new: NTLM Network Logon by Machine Account - Potential Coerced Relay
new: Resource-Based Constrained Delegation Attribute Modified
new: Domain Controller Machine Account Password Change by Anonymous - Potential Zerologon
Example Log Event
Fixed Issues
SigmaHQ Rule Creation Conventions