S0518: PolyglotDuke
PolyglotDuke is a downloader that has been used by APT29 since at least 2013. PolyglotDuke has been used to drop MiniDuke.[1]
Security context for executives and security teams
S0518: PolyglotDuke describes [PolyglotDuke](https://attack.mitre.org/software/S0518) is a downloader that has been used by [APT29](https://attack.mitre.org/groups/G0016) since at least 2013. [PolyglotDuke](https://attack.mitre.org/software/S0518) has been used to drop [MiniDuke](https://attack.mitre.org/software/S0051).(Citation: ESET Dukes October 2019)
Executive priority
S0518: PolyglotDuke 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 S0518: PolyglotDuke 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 S0518: PolyglotDuke 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.
PolyglotDuke
PolyglotDuke is a downloader that has been used by APT29 since at least 2013. PolyglotDuke has been used to drop MiniDuke.[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 | T1112 | Modify Registry | PolyglotDuke can write encrypted JSON configuration files to the Registry.[1] |
| Enterprise | T1027 | Obfuscated Files or Information | PolyglotDuke can custom encrypt strings.[1] |
| Enterprise | T1027.011 | Fileless StorageSub-technique | PolyglotDuke can store encrypted JSON configuration files in the Registry.[1] |
| Enterprise | T1105 | Ingress Tool Transfer | PolyglotDuke can retrieve payloads from the C2 server.[1] |
| Enterprise | T1218.011 | Rundll32Sub-technique | PolyglotDuke can be executed using rundll32.exe.[1] |
| Enterprise | T1106 | Native API | PolyglotDuke can use |
| Enterprise | T1102.001 | Dead Drop ResolverSub-technique | PolyglotDuke can use Twitter, Reddit, Imgur and other websites to get a C2 URL.[1] |
| Enterprise | T1071.001 | Web ProtocolsSub-technique | PolyglotDuke has has used HTTP GET requests in C2 communications.[1] |
| Enterprise | T1027.003 | SteganographySub-technique | PolyglotDuke can use steganography to hide C2 information in images.[1] |
| Enterprise | T1140 | Deobfuscate/Decode Files or Information | PolyglotDuke can use a custom algorithm to decrypt strings used by the malware.[1] |
Groups, software, and campaigns
G0016: APT29
APT29 is threat group that has been attributed to Russia's Foreign Intelligence Service (SVR).[1][2] They have operated since at least 2008, often targeting government networks in Europe and NATO member countries, research institutes, and think tanks. APT29 reportedly compromised the Democratic National Committee starting in the summer of 2015.[3][4][5][6]
In April 2021, the US and UK governments attributed the SolarWinds Compromise to the SVR; public statements included citations to APT29, Cozy Bear, and The Dukes.[7][8] Industry reporting also referred to the actors involved in this campaign as UNC2452, NOBELIUM, StellarParticle, Dark Halo, and SolarStorm.[9][10][11][12][13][14]
C0023: Operation Ghost
Operation Ghost was an APT29 campaign starting in 2013 that included operations against ministries of foreign affairs in Europe and the Washington, D.C. embassy of a European Union country. During Operation Ghost, APT29 used new families of malware and leveraged web services, steganography, and unique C2 infrastructure for each victim.[1]
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 | 1.1 | Current bundle | e7c244509390… | ||
| 19.1 | 1.1 | Older bundle | e7c244509390… |
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]ESET Dukes October 2019
Faou, M., Tartare, M., Dupuy, T. (2019, October). OPERATION GHOST. Retrieved September 23, 2020.
Open source URL - [2]mitre-attackS0518Open source URL
Source: MITRE ATT&CK®. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. MITRE ATT&CK and ATT&CK are registered trademarks of The MITRE Corporation. Glexia is not affiliated with or endorsed by MITRE.