fb-cards-form-no-resident-informationnpm
fb-cards-form-no-resident-information is a confirmed malicious npm package (MAL-2026-12178) that steals credentials and exfiltrates sensitive data (malicious version 20.4.4). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in fb-cards-form-no-resident-information (npm)
What this malware does
On require() of the package, index.js loads adapter.js which reconstructs Cloudflare Workers hostnames from split string fragments (e.g. 'oob-worker' + '.cf101-a' + 'df.workers.dev') and downloads a platform-specific binary via https.get. A DNS TXT resolver fallback against subdomains of dl.well1.site retrieves a base64-chunked payload across numbered subdomains as an out-of-band channel. The fetched bytes are written to /tmp or %TEMP% under disguised names (.cache<rnd>, dotnet_diag_<rnd>.exe), chmod 0755, and spawned detached via spawn('/bin/sh', ['-c', fp+' &'], {detached:true}) or spawn('cmd',...). No hash or signature verification is performed; the destinations are unrelated to the package's stated purpose and are not publisher-owned infrastructure. An opt-out environment variable check is present as a cover story.
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
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for fb-cards-form-no-resident-information (version 20.4.4). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging fb-cards-form-no-resident-information across your stack and pipelines.
If you installed it — respond
fb-cards-form-no-resident-information 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.
Did it already run?
If fb-cards-form-no-resident-information 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 fb-cards-form-no-resident-information 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 fb-cards-form-no-resident-information-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.