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Shai-Hulud Chrome extension trojanized backdoor with wallet mnemonic theft

Malware Activity
First reported
Last updated
Happening score
H score 22
1 unique sources, 1 articles

Summary

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The Shai-Hulud supply-chain operation delivered a trojanized Google Chrome extension build with a backdoor that could steal wallet mnemonic phrases, creating a direct path to wallet compromise. The malicious build was pushed through a trusted update channel after release-access abuse, expanding exposure across extension users. The activity matters because mnemonic theft can enable downstream asset draining from affected wallets.

Related Happenings

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Malware Activity
First: 21.04.2026 00:52 Last: 21.04.2026 00:52 Sources 1

About this happening: The **FakeWallet** app set turned the **Apple App Store** into a delivery channel for **26 malicious wallet lookalikes**, putting crypto holders at risk of account takeover and th...

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Campaign
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Latest development: 24.04.2026 14:48

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Malware Activity
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BeatBanker Android phishing campaign targeting Brazilian users

Campaign
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About this happening: A **BeatBanker** Android phishing campaign is targeting **Brazilian users**, creating a risk of device compromise and payment theft. The lure uses **Google Play Store** lookalike...

BeatBanker Android malware activity

Malware Activity
First: 10.03.2026 23:27 Last: 10.03.2026 23:27 Sources 1

About this happening: The **BeatBanker** Android malware is actively **hijacking devices** by posing as a **Starlink app**, creating risk of credential theft, illicit mining, and remote device control....

Timeline

  1. 31.12.2025 18:29 2 articles · 4mo ago

    Trust Wallet Chrome extension version 2.68 malicious update

    Exploitation Observed

    Unknown threat actors pushed Trust Wallet Chrome extension version 2.68 to the browser's extension marketplace on December 24, 2025 after abusing Chrome Web Store access obtained through leaked GitHub secrets and a leaked CWS API key. The trojanized build used the trusted release channel to deliver a backdoor and a domain infrastructure pattern centered on metrics-trustwallet[.]com and api.metrics-trustwallet[.]com, enabling wallet mnemonic theft from extension users.

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  2. 31.12.2025 18:29 1 articles · 4mo ago

    Trust Wallet discloses Shai-Hulud compromise and $8.5M loss

    Initial Disclosure

    Trust Wallet disclosed that the second iteration of Shai-Hulud (aka Sha1-Hulud) in November 2025 likely compromised its Google Chrome extension, exposing developer GitHub secrets, the browser extension source code, and the Chrome Web Store API key. The compromise ultimately drained approximately $8.5 million in cryptocurrency assets from 2,520 wallet addresses to at least 17 attacker-controlled addresses, and Trust Wallet said affected users were being routed through a reimbursement claim process while release monitoring and controls were strengthened and users were urged to move to version 2.69.

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