MalwarePublished 5 Aug 2026

bigops-nitro-events-table (npm) · Malicious Code

Affects bigops-nitro-events-tableSource GCVE Database

Malicious package : remove bigops-nitro-events-table and rotate any secrets on hosts that installed it.

Data as of 5 Aug 2026, 22:46 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-13226

What to do

Remove bigops-nitro-events-table 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

Product	Affected	Fixed in
npmbigops-nitro-events-table	Affected =35.4.2	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-nitro-events-table version 35.4.2 contains malicious code that downloads and executes a platform-specific binary payload from suspicious Cloudflare Workers hostnames and fallback DNS-TXT records. The payload is saved to temporary directories, given executable permissions, and launched detached from the main process. The package masquerades as a simple pub/sub adapter but performs unauthorized remote code execution. It attempts to evade detection by spoofing user agents and respecting certain environment variables to avoid execution on privacy-conscious hosts.

Impact

This malicious package enables unauthorized remote code execution on systems that install and run bigops-nitro-events-table version 35.4.2. The downloaded binary runs detached from the main process, potentially allowing attackers to execute arbitrary code, persist on the system, and evade detection by blending in as telemetry. The evasion of privacy-conscious environments increases the risk of stealthy compromise.

Defensive guidance

Users should immediately remove and avoid using bigops-nitro-events-table version 35.4.2. Audit systems for presence of the package and any suspicious binaries in temporary directories such as /var/tmp/.cache_* or %TEMP%/dotnet_diag_*. Monitor for unexpected detached processes spawned by node applications. Consider restricting npm package sources to trusted registries and scanning dependencies for malicious code.

Summary

The bigops-nitro-events-table npm package version 35.4.2 includes a malicious _shim.js module that dynamically selects a platform-specific payload URL from reconstructed Cloudflare Workers domains and fallback DNS-TXT base64-encoded hosts. It downloads an executable binary to temporary system directories, sets executable permissions, and spawns it detached using shell commands. The payload filenames impersonate benign diagnostic artifacts, and the package spoofs the User-Agent header as 'node-fetch/2.6'. Execution is conditionally skipped if environment variables indicating telemetry opt-out or privacy preferences are set, indicating evasion techniques. The package falsely advertises itself as a trivial pub/sub adapter with no legitimate reason to fetch or execute native binaries.

References

npmjs.com/package/bigops-nitro-events-table/v/35.4.2 (opens in a new tab)

Community reviews

Loading reviews…

What to do

Affected software

Description

AI analysisMachine-generated, updated 5 Aug 2026, 22:46 UTC

Technical details

References

Community reviews