AN0493: Analytic 0493
Detects adversary exploitation of authentication mechanisms or credential validation processes. Defender perspective includes forged Kerberos tickets (e.g., MS14-068), abnormal LSASS memory access, replayed authentication attempts, and unexpected crashes of authentication services. Multi-event correlation ties exploitation attempts to abnormal process creation, service instability, and suspicious authentication events.
Analyst context for executives and security teams
AN0493 is a Windows-focused detection analytic concept for spotting abuse of authentication and credential validation mechanisms, such as forged Kerberos tickets, abnormal LSASS access, replayed authentication attempts, and authentication service crashes. Its business value is in helping leaders test whether identity compromise would be visible before it becomes broader operational disruption, privilege abuse, or incident-response uncertainty.
Executive priority
Prioritize this as an identity and Windows resilience validation item. The object does not provide a ready-made detection rule, so the key executive question is whether the organization can correlate authentication anomalies, sensitive process access, suspicious process creation, and authentication service instability into actionable SOC evidence. This supports incident decision-making, audit readiness around privileged access monitoring, and prioritization of Windows identity telemetry coverage.
Technical view
For SOC and detection engineering teams, treat AN0493 as a correlation requirement rather than a single alert. Validate Windows telemetry that can show suspicious authentication events, abnormal access to LSASS memory, unexpected authentication service crashes, and related abnormal process creation. Because no ATT&CK detection logic or tactic mapping is supplied, local baselining is required to define what is abnormal for domain controllers, authentication infrastructure, administrative hosts, and high-value Windows systems.
Likely telemetry
- Windows authentication event logs and security logs
- Kerberos-related authentication evidence where available
- Process creation telemetry from Windows endpoints and servers
- Process access telemetry involving LSASS
- Service crash or service instability logs for authentication-related services
Detection direction
- Validate that authentication anomalies are correlated with endpoint process activity and service instability rather than reviewed as isolated events.
- Tune for abnormal LSASS access with attention to legitimate administrative, security, backup, or monitoring tools that may create false positives.
- Review replayed or unusual authentication attempts in context of source host, account, timing, and target system criticality.
- Confirm that domain controllers and other authentication-critical Windows systems have sufficient logging retention and forwarding for multi-event correlation.
- Document blind spots where authentication logs, process access events, or service crash telemetry are not collected.
Mitigation priorities
- Prioritize hardening and monitoring of Windows authentication infrastructure and systems that process privileged credentials.
- Ensure least-privilege administration and controlled access to systems where LSASS and authentication services are most sensitive.
- Maintain reliable centralized collection for Windows authentication, process creation, process access, and service health telemetry.
- Use incident response playbooks that connect credential abuse indicators with authentication service instability and suspicious process activity.
- Review control evidence for compliance or assurance programs that require monitoring of privileged access and authentication abuse.
Analyst notes and limits
The supplied ATT&CK object is a detection analytic description, not a full technique entry or complete detection rule. It is useful for shaping detection requirements around Windows authentication exploitation and credential validation abuse, especially where multiple weak signals need correlation.
Official detection logic, tactics, relationships, aliases, labels, and non-Windows platforms were not supplied. This take cannot assert active exploitation, actor attribution, impact, or coverage. Local environment baselines and telemetry validation are required before operationalizing this analytic.
Analytic 0493
Detects adversary exploitation of authentication mechanisms or credential validation processes. Defender perspective includes forged Kerberos tickets (e.g., MS14-068), abnormal LSASS memory access, replayed authentication attempts, and unexpected crashes of authentication services. Multi-event correlation ties exploitation attempts to abnormal process creation, service instability, and suspicious authentication events.
How security teams should use this page
Treat this object as behavior context, not an attribution claim. Validate the related groups, software, data sources, and mitigations against official ATT&CK relationships and your own telemetry before making control-coverage decisions.
All related ATT&CK context
No relationships are available in the current normalized data for this object.
Object version and sync metadata
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Imported snapshots across ATT&CK releases (1)
| Release | Bundle imported | Object version | Modified | Status | Raw hash |
|---|---|---|---|---|---|
| 19.1 | 1.0 | Current bundle | 289d251b91fa… |
Mirrored ATT&CK source object
The raw object is retained through the mirrored ATT&CK source bundle and object hash. The raw endpoint returns the exact object from the mirrored bundle when available.
External references and citations
MITRE external references are preserved separately from Glexia analysis so citations remain traceable to their original source records.
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mitre-attack AN0493Open source URL
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