AN1993: Analytic 1993
Much of this activity will take place outside the visibility of the target organization, making detection of this behavior difficult. Detection efforts may be focused on related stages of the adversary lifecycle, such as during Initial Access (ex: Phishing).
Analyst context for executives and security teams
This analytic matters because the described activity occurs largely before or outside the target organization’s normal visibility. For executives and security leaders, the practical issue is not a single log source to monitor, but whether the organization can recognize downstream evidence when external preparation turns into an observable intrusion attempt, such as phishing-related Initial Access.
Executive priority
Treat this as a coverage-gap and readiness question. Leaders should ask whether threat intelligence, phishing defenses, user reporting, email security evidence, and incident response playbooks are strong enough to compensate for activity that may not be directly visible inside the environment. The business decision value is in validating resilience at the transition point from external adversary activity to observable access attempts.
Technical view
The supplied ATT&CK object is a detection analytic for the PRE platform with no tactic specified and no standalone detection logic. SOC and detection teams should not expect direct, high-confidence telemetry for the behavior itself. Instead, validate detections and response workflows for related lifecycle stages explicitly referenced by MITRE, especially Initial Access via Phishing. Confirm that analytic coverage is mapped to observable follow-on behaviors rather than assuming visibility into pre-compromise activity.
Likely telemetry
- Email security gateway and mail flow logs
- User-reported phishing submissions
- Identity authentication logs following suspicious messages
- Endpoint or EDR events related to opened attachments or links
- Web proxy, DNS, or secure web gateway logs for suspicious link activity
Detection direction
- Focus detection validation on observable related stages, especially phishing-related Initial Access, because MITRE states much of the activity is outside target visibility.
- Avoid measuring this analytic as a direct sensor-based detection unless local telemetry proves the activity is observable.
- Tune for correlation between suspicious inbound messaging, user interaction, authentication anomalies, and endpoint/web activity.
- Account for false positives from legitimate external communications, marketing outreach, recruiting, vendor contact, and normal email campaign activity.
- Use threat intelligence cautiously as enrichment and prioritization, not as proof of compromise without internal corroborating evidence.
Mitigation priorities
- Prioritize phishing-resistant controls and email security processes where they reduce risk from externally staged activity becoming Initial Access.
- Maintain user reporting channels and triage procedures so externally initiated attempts can be surfaced quickly.
- Ensure IR playbooks connect suspicious external indicators to internal telemetry review across email, identity, endpoint, DNS, and web logs.
- Use security awareness, identity hardening, and access monitoring as compensating controls for behavior that may not be directly visible before engagement.
- Document the visibility limitation for risk owners and auditors so coverage claims distinguish prevention, detection, response, and intelligence use.
Analyst notes and limits
The official object provides a high-level detection consideration rather than a concrete analytic query. Its main value is to remind teams that some adversary preparation or pre-access behavior may be invisible to the victim organization and must be managed through lifecycle-adjacent detections and response readiness.
No official detection logic, tactic, relationships, aliases, or additional context were supplied. The object only supports conservative guidance around limited visibility and related Initial Access detection, specifically the phishing example cited by MITRE. Local environment telemetry is required to assess actual coverage.
Analytic 1993
Much of this activity will take place outside the visibility of the target organization, making detection of this behavior difficult. Detection efforts may be focused on related stages of the adversary lifecycle, such as during Initial Access (ex: Phishing).
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
The fields below describe the current mirrored snapshot. When Glexia retains multiple ATT&CK source imports, you can open the table to compare the same object across releases (hashes and MITRE timestamps). For MITRE’s own release notes and roadmap, see ATT&CK resources — Updates .
Imported snapshots across ATT&CK releases (1)
| Release | Bundle imported | Object version | Modified | Status | Raw hash |
|---|---|---|---|---|---|
| 19.1 | 1.0 | Current bundle | 8a61a072d690… |
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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[1]
mitre-attack AN1993Open source URL
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