aftermath-suinpm
aftermath-sui is a confirmed malicious npm package (MAL-2026-10942) that steals credentials and exfiltrates sensitive data (malicious version 99.0.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in aftermath-sui (npm)
What this malware does
The aftermath-sui package was published to the npm registry by user 'jet0010001' (maintainer email [email protected]) as part of a dependency-confusion / reconnaissance campaign impersonating the Aftermath Finance SDK (Aftermath Finance is a DeFi protocol on the Sui blockchain). The package was published at version 99.0.0 - an inflated version number characteristic of dependency-confusion attacks, intended to cause a misconfigured resolver to prefer this public lookalike over the intended private/internal dependency of the same name.
The package declares a preinstall hook ("node setup.js || true") that executes automatically at npm install time, before any application code runs. The bundled setup.js performs host reconnaissance and credential harvesting: it collects the machine hostname, the current OS username, the current working directory, the contents of /etc/hostname, and the output of 'git remote -v', and it enumerates process environment variables whose names match the pattern /key|secret|token|pass|auth|private|drone|gitea|sui|admin|deploy/i - capturing API keys, secrets, tokens, passwords, and Sui/deploy/CI credentials. The collected data is serialized to JSON and exfiltrated via an HTTPS POST to the hardcoded attacker-controlled endpoint https://2.25.140.71:8443/aftermath/npm-dep-conf, with TLS certificate verification disabled (rejectUnauthorized: false) so a self-signed listener is accepted. Errors are silently swallowed so the install appears to succeed. The published module code (index.js) is a benign stub exporting only { version: "99.0.0" }, consistent with a package built solely to deliver the install-time beacon.
The install-time payload is byte-for-byte identical across the campaign's packages (aftermath-finance, aftermath-sui, aftermathfi), all published by the same maintainer within seconds of each other and all beaconing to the same collector.
The package's preinstall script (setup.js, invoked via scripts.preinstall = 'node setup.js') runs automatically on npm install. It enumerates process.env and filters keys matching /key|secret|token|pass|auth|private|drone|gitea|sui|admin|deploy/i, and additionally collects os.hostname(), os.userInfo().username, process.cwd(), the contents of /etc/hostname, and the output of git remote -v. The collected JSON is POSTed to a hardcoded bare-IP endpoint at https://2.25.140.71:8443/aftermath/npm-dep-conf with TLS certificate verification disabled (rejectUnauthorized:false). The destination is a raw IP unrelated to any legitimate Aftermath Finance / Sui infrastructure, and the package name resembles the Aftermath Finance ecosystem, consistent with a typosquat targeting Sui/Aftermath developers.
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 aftermath-sui (version 99.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging aftermath-sui across your stack and pipelines.
If you installed it — respond
aftermath-sui 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 aftermath-sui 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 aftermath-sui 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
- SafeDep · finder
Detect & block this
O3 blocks aftermath-sui-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.