accounts-ddos-shieldnpm
Advisory published Updated
accounts-ddos-shield is a confirmed malicious npm package (MAL-2026-12132) that typosquats a legitimate package to trick installs (malicious versions 0.0.2, 33.3.8). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in accounts-ddos-shield (npm)
What this malware does
On require of the package, helpers.js selects a platform-specific payload path and downloads an opaque binary from one of several Cloudflare Workers hosts whose names are assembled from split string fragments via Array.join to hide the destinations from static inspection (oob-worker.cf99-9b3.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev), with a DNS TXT reassembly fallback under tin/tina/ldr/win.dl.well1.site. The fetched bytes are written to /var/tmp or %TEMP% under decoy names impersonating Microsoft diagnostics (dotnet_diag<hex>.exe,.cache_<hex>,.analytics_state), chmod 0755 on POSIX, and spawned detached via /bin/sh or cmd.exe start. The module is labeled _helpers.js with telemetry-framing comments while it stages and executes a remote binary. The package name presents as a DDoS-protection utility, but no such functionality is delivered — the sole effect of loading the module is to run attacker-controlled code on the installer's host.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
TyposquatFind it
Search your lockfiles and build artifacts for accounts-ddos-shield (2 malicious versions).
If you installed it — respond
accounts-ddos-shield is a typosquat — you almost certainly intended a legitimately-named package. Remove accounts-ddos-shield, install the correct package, and rotate any secrets exposed during the install since post-install scripts may have already run.
Did it already run?
If accounts-ddos-shield 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
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks accounts-ddos-shield-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.