# GriefLure Cluster

> As of 2026-05-30, GriefLure Cluster is a China-nexus threat actor tracked by Threadlinqs Intelligence across 1 threat spanning apt. Also known as Operation GriefLure.

- **Nation:** China
- **Tracked threats:** 1
- **Categories:** APT
- **Also known as:** Operation GriefLure
- **As of:** 2026-05-30

## Tracked threats

- [Operation GriefLure — China-Nexus APT Spear-Phishing Targeting Viettel (Vietnam Military Telecom) and St. Luke's Medical Center (Philippines) with ftp.exe LotL Loader and Time-Based Polymorphic Payload Assembly](https://intel.threadlinqs.com/threat/TL-2026-0476) — HIGH

## Full data

Infrastructure, IOC values and detection queries (Splunk SPL / Microsoft KQL / Sigma) require the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp

Canonical: https://intel.threadlinqs.com/actor/GriefLure%20Cluster