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goodfriend9290@skiff.com

goodfriend9290@skiff.com is an email address that 2 published sources report in connection with Contagious Interview and IT Worker Fraud activity, which public reporting attributes to North Korea (DPRK). It is cited here from Heiner García and The Raven File. The earliest of those reports is dated 2024-06-20 and the most recent 2025-08-19.

email address Contagious InterviewIT Worker Fraud MATCHED IN SOURCE

First seen 2024-06-20 · last seen 2025-08-19

Sources

• The post of 20 June 2024 walks outward from the only follower of the KaanKayabasi GitHub account, devmaster929 (registered to goodfriend9290@gmail.com, joined 15 January 2024), through a repository shared with goodfriend9290 (goodfriend9290@skiff.com), that account's only follower smartdev0119, and the accounts smartdev0119 follows, goodman4293 (goodsuperman@skiff.com) and WebWizard109707. It then describes about 250 recruiter accounts, most created in January 2024 and followed by both devmaster929 and sammorozov, and names three that pair copied LinkedIn links with invented details. The post does not name North Korea; the set is filed unattributed.

  medium.com/coinmonks/fake-recruiters-in-github-68d0d3bf297d — Heiner García · under “devmaster929 recruiter-follower network (Heiner García)” · published 2024-06-20 · pulled 2026-09-28

• Nearby text:

  …on0710@gmail.com goldendragonlan511@skiff.com goldlion0819@gmail.com goldrabbit214@gmail.com goldstardev2002@gmail.com gombau1212@gmail.com goodfriend9290@skiff.com grahasmin@gmail.com great.coffee.dev@gmail.com greate.coffee.ts@gmail.com green.dev8391@gmail.com greendev0317@gmail.com greyperle0329@gmai…

  Unmasking DPRK IT Workers: Email Address Patterns as Hiring Red Flags — The Raven File · under “CONCLUSION” · published 2025-08-19 · pulled 2026-09-01

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Related indicators

Cited by the same report: medium.com/coinmonks/fake-recruiters-in-github-68d0d3bf297d

Heiner García lists 16 other indicators in this source. 7 are shown, chosen across types.

• goodsuperman@skiff.com email address
• kaankayabasi9060@gmail.com email address
• https://github.com/devmaster929 GitHub account
• https://github.com/goodfriend9290 GitHub account
• https://github.com/goodman4293 GitHub account
• https://www.linkedin.com/in/onder-kayabasi-772a33302/ LinkedIn account
• https://x.com/onderkayabasi X account

All 17 indicators from this source

Cited by the same report: Unmasking DPRK IT Workers: Email Address Patterns as Hiring Red Flags

The Raven File lists 1,741 other indicators in this source. 5 are shown, chosen across types.

• grahasmin@gmail.com email address
• greatcoffeedev@gmail.com email address
• https://github.com/enjoyandlove GitHub account
• https://github.com/erosgod1118 GitHub account
• https://github.com/eugeneathigh GitHub account

All 1,742 indicators from this source