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, GHSA-x23q-mgjg-53mq 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.

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

1 flagged

1.0.36

Indicators of compromise (SHA-256)

7e2ac6bf5ebc05e3dcf6a84122d0b10d5d5f36c5b4cec9f8d0b305d1b8125f47

0bbef705c23f606ecd8e4257d3de3818a1e460136c9c3aa8a5aafa1b93c0585b

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-2026-014643GHSA-x23q-mgjg-53mq

References

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

Explore

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