Beyond the Backdoor: How Contagious Interview Is Surgically Tampering with MetaMask Wallets

2026-02-15 unpacker

https://sp4rk.medium.com/beyond-the-backdoor-how-contagious-interview-is-surgically-tampering-with-metamask-wallets-0314ae901d85

Recent Contagious Interview activity attributed in the source to North Korean threat actors targets cryptocurrency, Web3, and AI professionals through fake technical assessments and trojanized NPM packages. The updated first-stage JavaScript has been reduced to beaconing, retrieving next-stage C2 details, and downloading additional payloads, including file-stealing JavaScript, a lightweight backdoor, and the Python-based InvisibleFerret backdoor. The malware searches Windows, macOS, and Linux systems for browser credentials, cryptocurrency wallets, password-manager files, private keys, seed phrases, KeePass databases, Solana artifacts, Hardhat files, and related developer secrets. A notable added capability uses a backdoor command to fetch a script that replaces the legitimate MetaMask extension in Chrome or Brave with an attacker-controlled version, modifies browser preference protections, and captures wallet unlock passwords through attacker C2 infrastructure.

Indicators of Compromise

Type Value First Seen Last Seen
IPv4 67.203.7.205 2026-01-21 2026-02-26
HASH ba5c684d5d611af8d2ec318b6686146… 2026-02-15 2026-02-15
HASH 69334a01975f4dcb54f46b5f05f816f… 2026-02-15 2026-02-15
HASH 82f1b800b8943ca26b2fdab24bd110c… 2026-02-15 2026-02-15
HASH c7d47efa0bcaba9f7d35c435e1980d1… 2026-02-15 2026-02-15
HASH c17f768fe159b130e02c56888a05e24… 2026-02-15 2026-02-15
HASH da7e6782b89e0ef20122aab9ed9d27d… 2026-02-15 2026-02-15
HASH 6244da9940f50b9f51e3d85766cb1226 2026-02-15 2026-02-15
HASH 05946c091c7cb81229b2942f13cc350… 2026-02-15 2026-02-15
HASH 8e6db10b5acc15c2cc54592e3dd49bf7 2026-02-15 2026-02-15
HASH 5b7760a047e36e083e96767fb1690bc… 2026-02-15 2026-02-15
HASH 036fa24884c65539edb26d52bf10fc4… 2026-02-15 2026-02-15
HASH 70d7ee4e18e96253a9ba8b97ffce9a7… 2026-02-15 2026-02-15
HASH 68e803f75e6a0032f548f1212f146b3… 2026-02-15 2026-02-15
HASH 05e550c238b31e9cba5978010a2d86c… 2026-02-15 2026-02-15
HASH 429fcc2850979750bdc336152d30522… 2026-02-15 2026-02-15
HASH 6d30f5fc9bcf0416b1bc96b16dc1e4f… 2026-02-15 2026-02-15
HASH d423bf6b18662aed88ddd69c72b4e116 2026-02-15 2026-02-15
HASH 58d06f53b9bac9aaeec4b6b9aeca9ec… 2026-02-15 2026-02-15
IPv4 147.124.202.163 2026-02-15 2026-02-15
IPv4 45.43.11.200 2026-02-15 2026-02-15
IPv4 145.59.1.45 2026-02-15 2026-02-15
IPv4 202.163.147.124 2026-02-15 2026-02-15
IPv4 66.235.28.238 2026-02-15 2026-02-15
IPv4 45.43.11.248 2026-02-15 2026-02-15
IPv4 66.235.168.238 2026-01-12 2026-02-15

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