Malicious npm Package Browser Wallet-Hijack Interceptor via Script Content

ATT&CK techniques

Initial Access → Impact

Recon
Resource Dev
Initial Access
- T1195.002Compromise Software Supply Chain
Execution
- T1059.007JavaScript
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
- T1657Financial Theft

What it detects

This rule detects JavaScript bundle content that hooks browser wallet and network APIs to silently rewrite cryptocurrency recipient addresses which the September 2025 debug and chalk npm supply chain compromise injected into frontend bundles to steal ETH BTC and SOL funds before signing. Attackers use this crypto-clipper interceptor for financial theft against every user loading the trojanized package.

Reporting behind it

Related detections9 linkedT1059.007 — drag to rearrange

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Malicious npm Package Browser Wallet-Hijack Interceptor via Script Content

Pivot detection · T1059.007 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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