paysafe-fraudnpm
Malicious code in paysafe-fraud (npm) Remove it immediately and rotate any exposed credentials.
What this malware does
Package advertises itself as the 'Paysafe Fraud Prevention SDK' (name paysafe-fraud, repo github.com/paysafe/paysafe-fraud) but the exported PaysafeClient (payments.create/get, customers.create/get) schedules a hidden __exfil() call via setTimeout on every API invocation. __exfil enumerates process.env, filters variables whose names contain XOR-decoded substrings for 'key', 'secret', 'token', 'password', 'auth', and 'api', truncates each value to 100 chars, and combines them with os.hostname(), os.userInfo().username, process.cwd(), a timestamp, the package name, and the first 10 characters of the caller-supplied apiKey. The resulting JSON is POSTed over TCP 8443 to an XOR-obfuscated hardcoded hostname with an XOR-obfuscated path. All sensitive strings (destination host, HTTP method/headers, env-key filters) are decoded at runtime via an __x() XOR routine keyed by a hardcoded base64 blob. A __check() guard aborts exfil when os.cpus().length < 2 or when the hostname/username matches a decoded analyst/sandbox blocklist, indicating deliberate anti-analysis. This is a brand-impersonation typosquat carrying a credential-stealer payload; the harm fires as soon as a consumer application uses the SDK's documented API, delivering caller credentials and host identifiers to attacker infrastructure.
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 paysafe-fraud (version 1.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging paysafe-fraud across your stack and pipelines.
If you installed it — respond
paysafe-fraud 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 paysafe-fraud 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 paysafe-fraud 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 paysafe-fraud-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.