# Opal Sleet: threat group profile

> Opal Sleet is a threat group thought to operate from North Korea. 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/opal-sleet
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## At a glance

| Fact | Value |
|---|---|
| Attack techniques | 0 |
| Thought to operate from | North Korea |
| Other names | 3 |
| Public reports | 5 |

## Who is Opal Sleet?

Opal Sleet is a threat group thought to operate from North Korea. Public reporting about it is still limited.

### Also known as

OSMIUM, Konni, Vedalia

Security companies each give the same group their own name, so one group can have many.

### What public reporting says

> Konni is a threat actor associated with APT37, a North Korean cyber crime group. They have been active since 2012 and are known for their cyber-espionage activities. Konni has targeted various sectors, including education, government, business organizations, and the cryptocurrency industry. They have exploited vulnerabilities such as CVE-2023-38831 and have used malware like KonniRAT to gain control of victim hosts and steal important information.

## Public reports about Opal Sleet

- https://nsfocusglobal.com/the-new-apt-group-darkcasino-and-the-global-surge-in-winrar-0-day-exploits/
- https://paper.seebug.org/3031/
- https://www.rewterz.com/rewterz-news/rewterz-threat-alert-konni-apt-group-active-iocs-11
- https://www.securonix.com/blog/stiffbizon-detection-new-attack-campaign-observed/
- https://gbhackers.com/vedalia-apt-group-exploits/

## Frequently asked questions

### Who is Opal Sleet?

Opal Sleet is a threat group thought to operate from North Korea. Public reporting about it is still limited.

### Where is Opal Sleet thought to be based?

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

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

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