# UNC6508

> As of 2026-08-28, UNC6508 is a China-nexus threat actor tracked by Threadlinqs Intelligence across 3 threats spanning threat intel, campaign, apt. ATT&CK coverage spans 94 techniques across 16 tactics in 3 of 3 tracked threats. Most-observed techniques: T1071.001 (Web Protocols), T1082 (System Information Discovery), T1105 (Ingress Tool Transfer).

- **Nation:** China
- **Tracked threats:** 3
- **Categories:** THREAT_INTEL, CAMPAIGN, APT
- **As of:** 2026-08-28

## ATT&CK techniques observed

94 techniques observed across 3 of 3 tracked threats. Tactics: Stealth (formerly Defense Evasion) (17), Resource Development (10), Collection (9), Command and Control (8), Execution (8), Initial Access (8).

- [T1071.001](https://intel.threadlinqs.com/technique/T1071.001) Web Protocols — Command and Control — observed in 3 of 3 tracked threats
- [T1082](https://intel.threadlinqs.com/technique/T1082) System Information Discovery — Discovery — observed in 3 of 3 tracked threats
- [T1105](https://intel.threadlinqs.com/technique/T1105) Ingress Tool Transfer — Command and Control — observed in 3 of 3 tracked threats
- [T1190](https://intel.threadlinqs.com/technique/T1190) Exploit Public-Facing Application — Initial Access — observed in 3 of 3 tracked threats
- [T1005](https://intel.threadlinqs.com/technique/T1005) Data from Local System — Collection — observed in 2 of 3 tracked threats
- [T1016](https://intel.threadlinqs.com/technique/T1016) System Network Configuration Discovery — Discovery — observed in 2 of 3 tracked threats
- [T1041](https://intel.threadlinqs.com/technique/T1041) Exfiltration Over C2 Channel — Exfiltration — observed in 2 of 3 tracked threats
- [T1059.001](https://intel.threadlinqs.com/technique/T1059.001) PowerShell — Execution — observed in 2 of 3 tracked threats
- [T1090](https://intel.threadlinqs.com/technique/T1090) Proxy — Command and Control — observed in 2 of 3 tracked threats
- [T1090.003](https://intel.threadlinqs.com/technique/T1090.003) Multi-hop Proxy — Command and Control — observed in 2 of 3 tracked threats
- [T1204.002](https://intel.threadlinqs.com/technique/T1204.002) User Execution: Malicious File — Execution — observed in 2 of 3 tracked threats
- [T1505](https://intel.threadlinqs.com/technique/T1505) Server Software Component — Persistence — observed in 2 of 3 tracked threats
- [T1505.003](https://intel.threadlinqs.com/technique/T1505.003) Web Shell — Persistence — observed in 2 of 3 tracked threats
- [T1555.003](https://intel.threadlinqs.com/technique/T1555.003) Credentials from Web Browsers — Credential Access — observed in 2 of 3 tracked threats
- [T1566.001](https://intel.threadlinqs.com/technique/T1566.001) Phishing: Spearphishing Attachment — Initial Access — observed in 2 of 3 tracked threats

## Tracked threats

- [Cyble H1 2026 Threat Actor Landscape: 261 Tracked Groups, Five Most Active Actors Profiled](https://intel.threadlinqs.com/threat/TL-2026-1721) — HIGH
- [ASEC June 2026 APT Trend Report: Nation-State Actors Pivot to Cloud/OAuth Abuse, MaaS, and Supply-Chain Compromise](https://intel.threadlinqs.com/threat/TL-2026-1287) — MEDIUM
- [UNC6508 (PRC-Nexus) Trojanizes Unpatched REDCap Research Servers with INFINITERED Malware to Spy on North American Medical, Academic & Military Research](https://intel.threadlinqs.com/threat/TL-2026-0891) — HIGH

## Related CVEs

5 CVEs referenced by tracked UNC6508 activity.

- [CVE-2026-21509](https://intel.threadlinqs.com/cve/CVE-2026-21509)
- [CVE-2024-39717](https://intel.threadlinqs.com/cve/CVE-2024-39717)
- [CVE-2023-38831](https://intel.threadlinqs.com/cve/CVE-2023-38831)
- [CVE-2023-27997](https://intel.threadlinqs.com/cve/CVE-2023-27997)
- [CVE-2022-40684](https://intel.threadlinqs.com/cve/CVE-2022-40684)

## 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/UNC6508