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104.253.43.239

104.253.43.239 is an IP address that 2 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 and Kudelski Security. The earliest of those reports is dated 2026-09-10 and the most recent 2026-10-18.

ip address IT Worker FraudContagious InterviewLazarus Group MATCHED IN SOURCE

First seen 2026-09-10 · last seen 2026-10-18

Network

Looked up 2026-09-21 at ip-api.com. A hosting range is not evidence on its own.

Sources

• …C2 operations 175.45.176.69 DPRK Fake IT worker exit node 104.253.7.202 Polaris Team 104.253.43.239 Polaris Team 104.253.75.110 Polaris Team 104.253.160.77 Polaris Team 104.253.201.228…

  Kudelski Security Research — Kudelski Security Research · under “IOC’s” · published 2025-03-05 · pulled 2026-09-10

• …C2 operations 175.45.176.69 DPRK Fake IT worker exit node 104.253.7.202 Polaris Team 104.253.43.239 Polaris Team 104.253.75.110 Polaris Team 104.253.160.77 Polaris Team 104.253.201.228…

  DPRK Fake IT Workers: Inside Their Evolving Network Infrastructure - Kudelski Security Research Center — Kudelski Security · under “IOC’s” · published 2026-07-17 · 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. 7 are shown, chosen across types.

• AS8359 autonomous system number
• env-check.daemontools.cc domain
• expressvpn2021-3@outlook.com email address
• ifstap@proton.me email address
• 07d889e2dadce6f3910dcbc253317d28ca61c766 file hash
• 91d48ee33a92acef02d8c8153d1de7e7fe8ffa0f3b6e5cebfcb80b3eeebc94f1 file hash
• 104.253.7.202 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. 5 are shown, chosen across types.

• kut@star-co.net.kp email address
• 104.253.75.110 IP address
• 162.253.129.2 IP address
• 175.45.176.144 IP address
• 175.45.176.160 IP address

All 24 indicators from this source