This is a defensive tool-intelligence page. It is intended for analyst navigation, source review, and hunt planning. It is not a malware-analysis report and does not contain sample code or binaries.
Summary
- Associated actor(s): UNC1860
- Tool type(s): Dropper / access-enablement tooling
- Confidence level(s): High
- Source ID(s):
SRC-MANDIANT-UNC1860
Behavior
| Actor | Behavior Summary |
|---|
| UNC1860 | Mandiant reports SASHEYAWAY as a low-detection dropper that can enable execution of full passive backdoors such as TEMPLEDOOR, FACEFACE, and SPARKLOAD. |
Hash And IOC Status
| Actor | Status | Reference |
|---|
| UNC1860 | Mandiant publishes activity-level MD5 IOCs and a VT collection; this repo does not map every hash to SASHEYAWAY. | SRC-MANDIANT-UNC1860 |
Hashes and IOCs on this page are source pointers or representative public indicators. They SHOULD be refreshed from the linked source before operational use and MUST NOT be used alone for actor attribution.
Defensive Hunting Notes
| Actor | Hunting Notes |
|---|
| UNC1860 | Hunt dropper-to-passive-backdoor chains, low-prevalence .NET utilities, and follow-on deployment from exploited public-facing servers. |
Handling Notes
| Actor | Handling Notes |
|---|
| UNC1860 | Use behavior plus multiple evidence lines. |
Crosslinks
Mapped ATT&CK Techniques For Associated Actor(s)
| Actor | Technique | Tactic | Mapping Quality | Source |
|---|
| UNC1860 | T1190 Exploit Public-Facing Application | Initial Access | M2 | SRC-MANDIANT-UNC1860 |
| UNC1860 | T1505.003 Web Shell | Persistence | M2 | SRC-MANDIANT-UNC1860 |
| UNC1860 | T1105 Ingress Tool Transfer | Command and Control | M2 | SRC-MANDIANT-UNC1860 |
| UNC1860 | T1021.001 Remote Services: RDP | Lateral Movement | M2 | SRC-MANDIANT-UNC1860 |
| UNC1860 | T1078 Valid Accounts | Defense Evasion | M2 | SRC-MANDIANT-UNC1860 |
These detections are mapped through the associated actor or scenario and are not automatically tool-specific. Promote a tool-specific detection only after the behavior is tied to telemetry and test evidence.
These hunts are mapped through the associated actor or scenario and may need narrowing before they are used for this specific tool.
Source Review
| Source | Publisher | Date | Reliability | Type | Last Reviewed |
|---|
SRC-MANDIANT-UNC1860 | Google Cloud / Mandiant | 2024-09-19 | A | Vendor CTI | 2026-05-14 |
If a source publishes a large or frequently changing IOC appendix, keep the current IOC list in the source system or TIP and store only the pointer here.