Which versions of @rentwise/common are malicious?

The following npm versions of @rentwise/common are flagged malicious: 1.0.36. Treat any of these as compromised.

How do I remediate @rentwise/common if I installed it?

@rentwise/common 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.

I already installed @rentwise/common — how do I know if it already compromised me?

If @rentwise/common 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.

Is @rentwise/common part of a known attack campaign?

Yes — @rentwise/common is associated with the IN-MAL-2026-014643 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find @rentwise/common across my projects, lockfiles, and CI pipelines?

Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @rentwise/common (version 1.0.36). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @rentwise/common across your stack and pipelines.

Malicious package

@rentwise/commonnpm

@rentwise/common is a confirmed malicious npm package (MAL-2026-12328) that steals credentials and exfiltrates sensitive data (malicious version 1.0.36). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @rentwise/common (npm)

MAL-2026-12328

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall @rentwise/common

What this malware does

build/index.js appends an eval(atob(...)) blob to the legitimate common-library exports, so the payload runs whenever any consumer require()s @rentwise/common. The decoded payload queries public Ethereum JSON-RPC nodes and eth.blockscout.com/api to fetch the latest transaction sent by the hardcoded wallet 0xa322E5f3D311D3080e6f0121063e9aDC2490Ef1a, reconstructs an IPv4 address from the transaction's tx.to field (bytes 0-3 as octets), then HTTP GETs http://<ip>:443/0x/cls and http://<ip>:443/0x/ls. The response body is XOR-decoded using the x-payload-b64 header, eval()'d in-process, and additionally spawned as a detached node -e <payload> child process with stdio:ignore and windowsHide. All strings (module names http/https/zlib/child_process, URLs, RPC method names) are \uXXXX-escaped inside the base64 blob to defeat static string matching. The blockchain-anchored C2 (EtherHiding pattern) lets the operator rotate infrastructure by broadcasting a new on-chain transaction. This grants arbitrary remote code execution on any host that installs and loads the package.

Malicious versions

1 flagged

1.0.36

Indicators of compromise (SHA-256)

7e2ac6bf5ebc05e3dcf6a84122d0b10d5d5f36c5b4cec9f8d0b305d1b8125f47

Detection & response playbook

Credential / info stealer

Find it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @rentwise/common (version 1.0.36). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @rentwise/common across your stack and pipelines.
If you installed it — respond
@rentwise/common 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 @rentwise/common 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 @rentwise/common 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

No. @rentwise/common on npm has been identified as a malicious package (version 1.0.36 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-014643

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks @rentwise/common-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

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