gokcpdoor
- First seen
- 2022-01-01 00:00:00
- Malware type
- backdoor
- Last IoC activity
- 2026-07-06 12:29:24
- Profile updated
- 2026-07-07 14:25:21
Targeted industries: government-and-public-sector technology-and-telecommunications
Targeted regions: country_code:jp
Context
According to LAC, this malware is written in Go and was observed in 2022 used by an unknown China-based APT across several incidents in Japan. This backdoor has 20 commands and connects with C2 servers via KCP over UDP.
Reports & references
- malpedia.caad.fkie.fraunhofer.de — Elf.Gokcpdoor (report)
- virusbulletin.com — Lets Go Door With Kcp (report)