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Malicious package

@apexacc/auditnpm

Advisory published Updated

@apexacc/audit is a confirmed malicious npm package (MAL-2026-17923) that steals credentials and exfiltrates sensitive data. Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @apexacc/audit (npm)

MAL-2026-17923
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @apexacc/audit

What this malware does

@apexacc/audit is the companion package to @apexacc/cli in the "Apex Accelerator" campaign (Elastic Security Labs REF8801, 2026-10-12). It exposes an MCP server with 18 "security tools" that all return fabricated output (for example a fixed Slither report and a "NOT A HONEYPOT" verdict), registers itself in Claude Desktop, Cursor and Windsurf MCP configs, and on Windows requests elevation to add a Defender exclusion for its folder and attempts to disable Smart App Control. It carries the same verification bootstrap as @apexacc/cli (macOS CloudSyncD dropper; Windows staged infostealer). The package returns "Not found" from the npm registry as of 2026-10-15, but installed copies persist. All versions affected. Indicators from Elastic's report.

Malicious versions

all versions

Every published version of this package is considered malicious — remove it entirely.

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for @apexacc/audit (all published versions).

  2. If you installed it — respond

    @apexacc/audit is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If @apexacc/audit was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. @apexacc/audit on npm has been identified as a malicious package (all published versions flagged). It should be removed immediately — do not install or keep it in your dependency tree.

References

Credits

  • Elastic Security Labs (Jia Yu Chan, Daniel Stepanic) · finder
  • Patrick Duggan, DugganUSA · reporter

Detect & block this

O3 blocks @apexacc/audit-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Explore

@apexacc/audit (npm) malicious package — MAL-2026-17923 | O3 Security