S0686: QuietSieve
QuietSieve is an information stealer that has been used by Gamaredon Group since at least 2021.[1]
Security context for executives and security teams
S0686: QuietSieve describes [QuietSieve](https://attack.mitre.org/software/S0686) is an information stealer that has been used by [Gamaredon Group](https://attack.mitre.org/groups/G0047) since at least 2021.(Citation: Microsoft Actinium February 2022)
Executive priority
S0686: QuietSieve 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 S0686: QuietSieve 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 S0686: QuietSieve 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.
QuietSieve
QuietSieve is an information stealer that has been used by Gamaredon Group since at least 2021.[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 | T1564.003 | Hidden WindowSub-technique | QuietSieve has the ability to execute payloads in a hidden window.[1] |
| Enterprise | T1071.001 | Web ProtocolsSub-technique | QuietSieve can use HTTPS in C2 communications.[1] |
| Enterprise | T1105 | Ingress Tool Transfer | QuietSieve can download and execute payloads on a target host.[1] |
| Enterprise | T1016.001 | Internet Connection DiscoverySub-technique | QuietSieve can check C2 connectivity with a `ping` to 8.8.8.8 (Google public DNS).[1] |
| Enterprise | T1083 | File and Directory Discovery | QuietSieve can search files on the target host by extension, including doc, docx, xls, rtf, odt, txt, jpg, pdf, rar, zip, and 7z.[1] |
| Enterprise | T1120 | Peripheral Device Discovery | QuietSieve can identify and search removable drives for specific file name extensions.[1] |
| Enterprise | T1005 | Data from Local System | QuietSieve can collect files from a compromised host.[1] |
| Enterprise | T1135 | Network Share Discovery | QuietSieve can identify and search networked drives for specific file name extensions.[1] |
| Enterprise | T1113 | Screen Capture | QuietSieve has taken screenshots every five minutes and saved them to the user's local Application Data folder under `Temp\SymbolSourceSymbols\icons` or `Temp\ModeAuto\icons`.[1] |
Groups, software, and campaigns
G0047: Gamaredon Group
Gamaredon Group is a suspected Russian cyber espionage group that has targeted military, law enforcement, judiciary, non-profit, and non-governmental organizations in Ukraine since at least 2013. The name Gamaredon Group derives from a misspelling of the word "Armageddon," found in early campaigns.[1][2][3][4][5]
In November 2021, the Ukrainian government publicly attributed Gamaredon Group to Russia’s Federal Security Service (FSB) Center 18, an assessment later supported by multiple independent cybersecurity researchers. [6][5]
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 | f1d4ddf61f29… | ||
| 19.1 | 1.0 | Older bundle | f1d4ddf61f29… |
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 Actinium February 2022
Microsoft Threat Intelligence Center. (2022, February 4). ACTINIUM targets Ukrainian organizations. Retrieved February 18, 2022.
Open source URL - [2]mitre-attackS0686Open source URL
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