S0664: Pandora
Pandora is a multistage kernel rootkit with backdoor functionality that has been in use by Threat Group-3390 since at least 2020.[1]
Security context for executives and security teams
S0664: Pandora describes [Pandora](https://attack.mitre.org/software/S0664) is a multistage kernel rootkit with backdoor functionality that has been in use by [Threat Group-3390](https://attack.mitre.org/groups/G0027) since at least 2020.(Citation: Trend Micro Iron Tiger April 2021)
Executive priority
S0664: Pandora is an official MITRE ATT&CK software. Glexia treats it as defensive behavior context for prioritizing monitoring, control validation, and response planning without using the object by itself as an attribution claim.
Technical view
Security teams should validate S0664: Pandora by reviewing the official ATT&CK relationships, mapped tactics (the mapped ATT&CK tactic context), supported platforms (Windows), and available local telemetry before making detection or mitigation decisions.
Likely telemetry
- Official ATT&CK relationships and object metadata
- Network, endpoint, and security-tool telemetry
Detection direction
- Validate whether S0664: Pandora appears in your detection coverage and tabletop scenarios.
- Use the object to align executive risk language with SOC, incident response, and detection engineering work.
- Do not treat ATT&CK relationship context as attribution without corroborating evidence.
Mitigation priorities
- Map the object to existing controls and identify missing telemetry or response ownership.
- Prioritize mitigations that reduce exposure on the listed platforms and tactics.
- Review adjacent ATT&CK relationships before changing policy, detections, or reporting language.
Additional notes and limits
Baseline Glexia take generated from the official MITRE ATT&CK STIX object, source hash, tactics, platforms, and detection fields. It is safe to replace with a richer model-generated take for the same source hash later.
This baseline take is source-grounded and schema-validated, but it does not include environment-specific telemetry, incident evidence, or threat-intelligence corroboration.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Pandora
Pandora is a multistage kernel rootkit with backdoor functionality that has been in use by Threat Group-3390 since at least 2020.[1]
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.
Techniques used
This mirrors the MITRE pattern of making group, software, campaign, and technique relationships scannable. Relationship notes come from mirrored ATT&CK relationship text when available.
| Domain | ID | Name | Relationship / procedure |
|---|---|---|---|
| Enterprise | T1105 | Ingress Tool Transfer | |
| Enterprise | T1574.001 | DLLSub-technique | |
| Enterprise | T1573.001 | Symmetric CryptographySub-technique | |
| Enterprise | T1068 | Exploitation for Privilege Escalation | |
| Enterprise | T1543.003 | Windows ServiceSub-technique | |
| Enterprise | T1071.001 | Web ProtocolsSub-technique | |
| Enterprise | T1057 | Process Discovery | |
| Enterprise | T1205 | Traffic Signaling | |
| Enterprise | T1027.015 | CompressionSub-technique | |
| Enterprise | T1569.002 | Service ExecutionSub-technique | |
| Enterprise | T1553.006 | Code Signing Policy ModificationSub-technique | |
| Enterprise | T1055 | Process Injection | |
| Enterprise | T1112 | Modify Registry |
Groups, software, and campaigns
G1021: Cinnamon Tempest
Cinnamon Tempest is a China-based threat group that has been active since at least 2021 deploying multiple strains of ransomware based on the leaked Babuk source code. Cinnamon Tempest does not operate their ransomware on an affiliate model or purchase access but appears to act independently in all stages of the attack lifecycle. Based on victimology, the short lifespan of each ransomware variant, and use of malware attributed to government-sponsored threat groups, Cinnamon Tempest may be motivated by intellectual property theft or cyberespionage rather than financial gain.[1][2][3][4]
G0027: Threat Group-3390
Threat Group-3390 is a Chinese threat group that has extensively used strategic Web compromises to target victims.[1] The group has been active since at least 2010 and has targeted organizations in the aerospace, government, defense, technology, energy, manufacturing and gambling/betting sectors.[2][3][4]
All related ATT&CK context
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(2)
| Release | Bundle imported | Object version | Modified | Status | Raw hash |
|---|---|---|---|---|---|
| 19.2 | 1.0 | Current bundle | eacca8b4d496… | ||
| 19.1 | 1.0 | Older bundle | eacca8b4d496… |
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.
- [1]Trend Micro Iron Tiger April 2021
Lunghi, D. and Lu, K. (2021, April 9). Iron Tiger APT Updates Toolkit With Evolved SysUpdate Malware. Retrieved November 12, 2021.
Open source URL - [2]mitre-attackS0664Open source URL
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