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Product
Threat intelligence API
Get started
Live feed
Recipes
Free feeds
CLI & agents
The data
Incident records
Dark web
Validated IOCs
Vulnerabilities
Entity graph
For teams
For service providers
Use cases
About ThreatCluster
Docs
OpenAPI (Swagger)
ReDoc
Examples on GitHub
Quickstart & plans
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NightmareEclipse
Vulnerability
Threat entity extracted from intelligence sources
Entities
›
vulnerability
›
NightmareEclipse
Frequency
3
occurrences
First Seen
May 19, 2026
Last Seen
September 25, 2026
API
Overview
Recent Events
Profile
Profile
MITRE ATT&CK
1 / 2
Exploited By
Chaotic Eclipse
ShinyHunters
Associated Malware
Closedquorum
Tools Used
BitUnlocker
Cairn Toolkit
Google Chrome
Red Agent
MITRE Techniques
T1003 - OS Credential Dumping
T1041 - Exfiltration Over C2 Channel
T1047 - Windows Management Instrumentation
T1055 - Process Injection
T1059 - Command and Scripting Interpreter
T1071 - Application Layer Protocol
T1566 - Phishing
Affected Platforms
Windows
Azure Virtual Desktop
Discord
FSLogix
Microsoft Edge
Mozilla Firefox
-
REC
Recon
No techniques detected
-
RD
Resource Dev
No techniques detected
1
IA
Initial Access
T1566 - Phishing
2
EX
Execution
T1047 - Windows Management Instrumentation
T1059 - Command and Scripting Interpreter
-
PE
Persistence
No techniques detected
1
PE
Priv Esc
T1055 - Process Injection
-
DE
Defense Evasion
No techniques detected
1
CA
Cred Access
T1003 - OS Credential Dumping
-
DI
Discovery
No techniques detected
-
LM
Lateral Mov
No techniques detected
-
CO
Collection
No techniques detected
1
C2
C2
T1071 - Application Layer Protocol
1
EX
Exfil
T1041 - Exfiltration Over C2 Channel
-
IM
Impact
No techniques detected
7
techniques detected across
6
tactics
Related Clusters (2)
New Windows Malware CLOSEDQUORUM Uses AI for Autonomous Actions
Sep 22
·
2 sources
52
Windows 11 Update Causes Black Screen Issue for Users
Sep 28
·
2 sources
27
Related Articles (3)
Windows update leaves some virtual desktops staring into the void
Theregister
·
Sep 25
Windows CLOSEDQUORUM malware uses AI models to autonomously select post ...
Theregister
·
Sep 22
Windows vulnerabilities: BitLocker problem and privilege escalation
Heise.De
·
May 19
Related Entities
Chaotic Eclipse
ShinyHunters
Zero-day Exploit
Phishing
Malware
Microsoft
Closedquorum
T1003 - OS Credential Dumping
T1041 - Exfiltration Over C2 Channel
T1047 - Windows Management Instrumentation
T1055 - Process Injection
T1059 - Command and Scripting Interpreter
