S0178: Truvasys
Truvasys is first-stage malware that has been used by PROMETHIUM. It is a collection of modules written in the Delphi programming language. [1] [2] [3]
Security context for executives and security teams
S0178: Truvasys describes [Truvasys](https://attack.mitre.org/software/S0178) is first-stage malware that has been used by [PROMETHIUM](https://attack.mitre.org/groups/G0056). It is a collection of modules written in the Delphi programming language. (Citation: Microsoft Win Defender Truvasys Sep 2017) (Citation: Microsoft NEODYMIUM Dec 2016) (Citation: Microsoft SIR Vol 21)
Executive priority
S0178: Truvasys 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 S0178: Truvasys 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 S0178: Truvasys 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.
Truvasys
Truvasys is first-stage malware that has been used by PROMETHIUM. It is a collection of modules written in the Delphi programming language. [1] [2] [3]
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 | T1547.001 | Registry Run Keys / Startup FolderSub-technique | |
| Enterprise | T1036.004 | Masquerade Task or ServiceSub-technique |
Groups, software, and campaigns
G0056: PROMETHIUM
PROMETHIUM is an activity group focused on espionage that has been active since at least 2012. The group has conducted operations globally with a heavy emphasis on Turkish targets. PROMETHIUM has demonstrated similarity to another activity group called NEODYMIUM due to overlapping victim and campaign characteristics.[1][2][3]
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 | f1be6bf8200a… | ||
| 19.1 | 1.1 | Older bundle | f1be6bf8200a… |
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]Microsoft Win Defender Truvasys Sep 2017
Microsoft. (2017, September 15). Backdoor:Win32/Truvasys.A!dha. Retrieved November 30, 2017.
Open source URL - [2]Microsoft NEODYMIUM Dec 2016
Microsoft. (2016, December 14). Twin zero-day attacks: PROMETHIUM and NEODYMIUM target individuals in Europe. Retrieved November 27, 2017.
Open source URL - [3]Microsoft SIR Vol 21
Anthe, C. et al. (2016, December 14). Microsoft Security Intelligence Report Volume 21. Retrieved November 27, 2017.
- [4]Truvasys
(Citation: Microsoft Win Defender Truvasys Sep 2017) (Citation: Microsoft NEODYMIUM Dec 2016) (Citation: Microsoft SIR Vol 21)
- [5]mitre-attackS0178Open source URL
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