H3XAOperational intelligence
Live analytical pictureEvidence before assessment
Threat intelligence / Malware

HAPPYWORK

[HAPPYWORK](https://attack.mitre.org/software/S0214) is a downloader used by [APT37](https://attack.mitre.org/groups/G0067) to target South Korean government and financial victims in November 2016. (Citation: FireEye APT37 Feb 2018)

Malware
TypeMalware
External ID—
First seen2026-08-14
Last seen2026-08-14

Confidence

—

[HAPPYWORK](https://attack.mitre.org/software/S0214) is a downloader used by [APT37](https://attack.mitre.org/groups/G0067) to target South Korean government and financial victims in November 2016. (Citation: FireEye APT37 Feb 2018)

Labels

malware
4 recorded

Relationships

uses
from APT37
Group
uses
to Ingress Tool Transfer
Technique
uses
to System Information Discovery
Technique
uses
to System Owner/User Discovery
Technique
2 external

References

mitre-attack
S0214
open
FireEye APT37 Feb 2018
https://services.google.com/fh/files/misc/apt37-reaper-the-overlooked-north-korean-actor.pdf
open
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