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Superior Browser Extension Campaign — Wallet Drainer

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[VERIFIED]

Auto-generated score, not yet verified against the scoring model. Under review — treat as indicative, not a verdict.

anchored·2VuJ1P…tqiM

Summary

The 'Superior' campaign is a coordinated browser extension supply-chain attack identified by Socket Security in August 2026. Nineteen malicious Chrome and Edge extensions — collectively reaching approximately 80,000 users — deliver a multi-module malware framework capable of draining EVM, Solana, and Tron wallets, harvesting hardware-wallet seed phrases, and stealing credentials from major exchanges. The threat actor remains unidentified but has operated since at least February 2024, with confirmed infrastructure updates as recently as August 14, 2026.

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Timeline(5 events)

February 2024

Earliest infrastructure and code activity linked to the Superior campaign identified, based on similarities to activity documented by DomainTools.

Socket Security / CSO Online

February 2026

Approximate start of the six-month window in which the 19 malicious extension versions were published, per Socket Security's timeline.

Socket Security

14 August 2026

After Chrome extension detected and removal initiated, threat actor publishes updated Edge extension version with a new C2 domain, confirming the campaign is actively adapting.

Socket Security

27 August 2026

Socket Security publishes full public disclosure of the Superior campaign, naming 19 extensions, 16 malware modules, and associated C2 infrastructure. Chrome version reported as removed; Edge version reported as still live.

Socket Security

27 August 2026

Coverage of the disclosure published by The Hacker News, Bleeping Computer, CSO Online, Cybersecurity News, GBHackers, Cyber Insider, and others.

The Hacker News
Provenance & Audit Trail

Decision Log

This investigation is cryptographically anchored to the Solana blockchain (3 events). 0 of 10 cited source URLs have an Internet Archive snapshot.

model: claude-sonnet-4-6

generated: 9/1/2026, 11:49:25 PM

last updated: 9/2/2026, 12:36:45 AM

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