# UNC4191: threat group profile

> UNC4191 is a threat group thought to operate from China. Public reporting about it is still limited. This free profile brings together what is known about it, so you can judge the risk to you. It lists the other names the group goes by and links to every public report behind it.

Canonical page: https://www.edgeprotect.io/threat-actors/unc4191
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## At a glance

| Fact | Value |
|---|---|
| Attack techniques | 0 |
| Thought to operate from | China |
| Other names | 0 |
| Public reports | 2 |

## Who is UNC4191?

UNC4191 is a threat group thought to operate from China. Public reporting about it is still limited.

### What public reporting says

> UNC4191 is a China-linked threat actor that has been involved in cyber espionage campaigns targeting public and private sectors primarily in Southeast Asia. They have been known to use USB devices as an initial infection vector and have been observed deploying various malware families on infected systems. UNC4191's operations have also extended to the US, Europe, and the Asia Pacific Japan region, with a particular focus on the Philippines.

## Public reports about UNC4191

- https://www.mandiant.com/resources/blog/china-nexus-espionage-southeast-asia
- https://therecord.media/espionage-group-using-usb-devices-to-hack-targets-in-southeast-asia/

## Frequently asked questions

### Who is UNC4191?

UNC4191 is a threat group thought to operate from China. Public reporting about it is still limited.

### Where is UNC4191 thought to be based?

Public reporting places UNC4191 as operating from China. Attribution is never certain: it rests on the tools, infrastructure and targets researchers have seen.

### How do I know if UNC4191 is a risk to my business?

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