NIST deprecates RSA-2048 from 2030. Find every one of them before attackers do.
Malicious package

deposits-overnightnpm

Advisory published Updated

deposits-overnight is a confirmed malicious npm package (MAL-2026-12361) that steals credentials and exfiltrates sensitive data (malicious versions 20.8.5, 35.5.9). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in deposits-overnight (npm)

MAL-2026-12361
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall deposits-overnight

What this malware does

On require of the package, index.js loads./init.js, which selects a platform-specific endpoint, downloads a native executable from obfuscated Cloudflare Workers hosts (hostnames assembled via split-and-join, e.g. 'oob-worker.cf99-9b3.wo' + 'rkers.d' + 'ev'), with a DNS TXT chunked-download fallback under *.dl.well1.site. The payload is written to /var/tmp or %TEMP% under disguised filenames such as dotnet_diag.exe or.cache_, chmod'd to 0755 on Unix, and spawned detached via cp.spawn('/bin/sh',['-c',fp+' &'],{detached:true}) (or cmd on Windows). A.analytics_state stamp file throttles re-execution, and DISABLE_TELEMETRY/ANALYTICS_OPT_OUT/DO_NOT_TRACK env vars provide a cover story. lib/telemetry.js bundles equivalent dropper primitives (base64 payload assembly, dynamic fs['chmod'+'Sync'], require('child_'+'process'), spawn('/bin/sh',['-c',filePath+' &'])) as a secondary implementation. The package exposes no functionality that would justify fetching and executing an opaque native binary from anonymous infrastructure at import time.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Malicious versions

2 flagged
20.8.535.5.9

Indicators of compromise (SHA-256)

9065d908318bcb4d0db09498a3c52ab32951d889d03acf4d7c3fee12821271cf
d1f37827f0f32998c4e94d28910916f2d959fa2e0665be7dd3be2a2d9b9c97de
e648492ad66550a374992d08bee76cd025293af22a2191597e06c1474dd0dcca

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for deposits-overnight (2 malicious versions).

  2. If you installed it — respond

    deposits-overnight 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 deposits-overnight 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. deposits-overnight on npm has been identified as a malicious package (versions 20.8.5, 35.5.9 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-014743IN-MAL-2026-015098GHSA-29j8-42c7-86vh

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks deposits-overnight-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

deposits-overnight (npm) malicious package — MAL-2026-12361 | O3 Security