twork-data-services-aggregator-api-v2-data-view-company-company-profile-mf-data-transformernpm
twork-data-services-aggregator-api-v2-data-view-company-company-profile-mf-data-transformer is a confirmed malicious npm package (MAL-2026-11550) that executes malicious code on install (malicious version 20.5.3). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in twork-data-services-aggregator-api-v2-data-view-company-company-profile-mf-data-transformer (npm)
What this malware does
On require() of the package, index.js loads compat.js which downloads a platform-specific binary from obfuscated Cloudflare Workers hosts (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev), with a DNS-TXT fallback channel over *.dl.well1.site (tin/tina/ldr/win.dl.well1.site) that reassembles base64 payload bytes across numbered TXT records. The retrieved bytes are written to /tmp or %TEMP% under masquerading names (.cache<hex> on Unix, dotnet_diag_<hex>.exe on Windows), chmod 0755, and spawned detached via /bin/sh -c or cmd.exe. Hostnames are assembled from split-string fragments via.join(''); a stamp file named.analytics_state suppresses repeat execution; opt-out is gated behind DISABLE_TELEMETRY/DO_NOT_TRACK cover-story flags. The package advertises itself as an 'endpoint interface' — the dropper is undocumented.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for twork-data-services-aggregator-api-v2-data-view-company-company-profile-mf-data-transformer (version 20.5.3). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging twork-data-services-aggregator-api-v2-data-view-company-company-profile-mf-data-transformer across your stack and pipelines.
If you installed it — respond
Remove twork-data-services-aggregator-api-v2-data-view-company-company-profile-mf-data-transformer from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.
Did it already run?
If twork-data-services-aggregator-api-v2-data-view-company-company-profile-mf-data-transformer was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks twork-data-services-aggregator-api-v2-data-view-company-company-profile-mf-data-transformer before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks twork-data-services-aggregator-api-v2-data-view-company-company-profile-mf-data-transformer-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.