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83.234.227.51

83.234.227.51 is an IP address that 3 published sources report in connection with IT Worker Fraud, Contagious Interview and Lazarus Group activity, which public reporting attributes to North Korea (DPRK). It is cited here from Kudelski Security Research, Kudelski Security and Security Scorecard. The earliest of those reports is dated 2025-01-29 and the most recent 2026-10-18.

ip address IT Worker FraudContagious InterviewLazarus Group MATCHED IN SOURCE

First seen 2025-01-29 · last seen 2026-10-18

Network

Looked up 2026-09-21 at ip-api.com. A subscriber line, as a person working from home ordinarily has.

Sources

• …This IP might have been reattributed. 83.234.227.9 83.234.227.10 83.234.227.20 83.234.227.41 83.234.227.51 Skyfreight_Limited Remain unchanged and are used by Team 821-39, which may indicate that this unit has a presence in Russia.…

  Kudelski Security Research — Kudelski Security Research · under “Tracking Public-Facing IP Addresses” · published 2025-03-05 · pulled 2026-09-10

• …This IP might have been reattributed. 83.234.227.9 83.234.227.10 83.234.227.20 83.234.227.41 83.234.227.51 Skyfreight_Limited Remain unchanged and are used by Team 821-39, which may indicate that this unit has a presence in Russia.…

  DPRK Fake IT Workers: Inside Their Evolving Network Infrastructure - Kudelski Security Research Center — Kudelski Security · under “Tracking Public-Facing IP Addresses” · published 2026-07-17 · pulled 2026-09-12

• …Proxy Relay : Traffic was routed through the Oculus Proxy network , specifically IPs 83.234.227.49 , 83.234.227.50 , 83.234.227.51 , and 83.234.227.53 , registered to Sky Freight Limited in Hasan, Russia.…

  Operation Phantom Circuit: North Korea's Global Data Exfiltration Campaign — Security Scorecard · under “The Evidence Chain” · published 2025-01-29 · pulled 2026-09-12

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Related indicators

Cited by the same report: Kudelski Security Research

Kudelski Security Research lists 66 other indicators in this source. 5 are shown, chosen across types.

• AS8359 autonomous system number
• env-check.daemontools.cc domain
• ifstap@proton.me email address
• 91d48ee33a92acef02d8c8153d1de7e7fe8ffa0f3b6e5cebfcb80b3eeebc94f1 file hash
• 83.234.227.9 IP address

All 67 indicators from this source

Cited by the same report: DPRK Fake IT Workers: Inside Their Evolving Network Infrastructure - Kudelski Security Research Center

Kudelski Security lists 23 other indicators in this source. 4 are shown, chosen across types.

• kut@star-co.net.kp email address
• 104.253.160.77 IP address
• 104.253.201.228 IP address
• 104.253.43.239 IP address

All 24 indicators from this source

Cited by the same report: Operation Phantom Circuit: North Korea's Global Data Exfiltration Campaign

Security Scorecard lists 20 other indicators in this source. 3 are shown, chosen across types.

• 83.234.227.52 IP address
• 83.234.227.53 IP address
• 86.104.74.51 IP address

All 21 indicators from this source