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MalwarePublished

bigops-procedure-file-handlers (npm) · Malicious Code

Affects bigops-procedure-file-handlersSource GCVE Database

0

Malicious package : remove bigops-procedure-file-handlers and rotate any secrets on hosts that installed it.

Data as of 5 Aug 2026, 22:45 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-13233

What to do

Remove bigops-procedure-file-handlers from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.

Affected software

ProductAffectedFixed in
npmbigops-procedure-file-handlersAffected
  • =35.7.6
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

The npm package bigops-procedure-file-handlers version 35.7.6 contains malicious code that downloads and executes a platform-specific executable from obfuscated Cloudflare Workers endpoints. It writes the executable to temporary directories with disguised filenames and runs it detached from the main process. If the HTTPS delivery fails, it uses a covert DNS TXT record channel to retrieve and execute code. The package disguises its activity as OS telemetry, indicating intentional evasion of detection.

References

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