registry / Remote code execution / accounts-final-form

accounts-final-form

Accounts final form runtime support module

This report shows the evidence for accounts-final-form@9.9.12. 6 of 7 known versions are blocked or flagged. The newest version, 34.2.5, is blocked. See all versions.

This package appears in our research on the August 2026 dependency confusion campaign, with how it works, the full package list and what to do if you installed it.

AI Security Review

scanned 3mo ago · by lpm-firewall-ai

Direct source inspection confirms import-time download-and-execute behavior. The absence of an npm lifecycle hook does not mitigate execution on ordinary package use.

Static reason

No blocking static signals were detected.; source matched previously finalized malicious package; routed for review; source fingerprint signature matched known malicious package; routed for review; previous stored version diff introduced dangerous source

Trigger

Any application importing index.js.

Impact

Unconsented remote code execution with the importing user's privileges.

Mechanism

Obfuscated HTTPS/DNS payload retrieval followed by detached native-binary execution.

Attack narrative

On normal module import, index.js loads setup.js. That code retrieves a platform-specific payload from rotating obfuscated worker hosts or a DNS TXT fallback, writes it to a temporary path, makes it executable on Unix, and starts it detached with output discarded. This is a concealed staged remote-code-execution chain unrelated to the declared runtime support module.

AI rationale

Direct source inspection confirms import-time download-and-execute behavior. The absence of an npm lifecycle hook does not mitigate execution on ordinary package use.

Evidence

package.jsonindex.jssetup.js/tmp/.analytics_state/var/tmp/.cache_<random>%TEMP%/analytics_state%TEMP%/dotnet_diag_<random>.exe

Network endpoints9

oob-worker.cf99-9b3.workers.devoob-worker.cf100-416.workers.devoob-worker.cf101-adf.workers.devoob-worker.cf102-baf.workers.dev

Decision evidence

public snapshot

AI called this Malicious at 99.0% confidence as Malware with low false-positive risk.

Evidence for block

index.js imports ./setup at module load.
setup.js downloads platform binaries from oob-worker.cf99-9b3.workers.dev and rotating peers.
setup.js falls back to DNS TXT payloads from well1.site subdomains.
Downloaded bytes are written to /var/tmp or Windows Temp, chmodded, then detached-executed.
Payload names, endpoints, and execution are obfuscated; stdout/stderr are suppressed.

Evidence against

package.json has no lifecycle scripts.
No credential harvesting or exfiltration appears in the inspected files.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetwork

Supply chainNo supply-chain packaging signals triggered.

ManifestNo manifest risk signals triggered.

scanned 2 file(s), 4.77 KB of source

Source & flagged code

3 flagged

setup.jsView file

•matchType = normalized_sha256 matchedPackage = arbocrate-sla-prober-arbocrate-sla-prober-core@7.5.9 matchedPath = setup.js matchedIdentity = npm:[redacted]:7.5.9 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

setup.jsView on unpkg

•matchType = malicious_source_fingerprint_signature signature = 405ba70d706ba63c signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = arbocrate-sla-prober-arbocrate-sla-prober-core@7.5.9 matchedPath = setup.js matchedIdentity = npm:[redacted]:7.5.9 similarity = 1.000 shingleOverlap = 2 summary = package final verdict is malicious

High

Known Malware Source Fingerprint Signature

Source fingerprint signature matches a known malicious package signature; route for source-aware review.

setup.jsView on unpkg

•matchType = previous_version_dangerous_delta matchedPackage = accounts-final-form@9.9.10 matchedIdentity = npm:YWNjb3VudHMtZmluYWwtZm9ybQ:9.9.10 similarity = 0.500 summary = stored previous version shares package body but lacks this dangerous source file

High

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

setup.jsView on unpkg

Source & flagged code

3 flagged · loading source

setup.jsView file

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

setup.jsView on unpkg

High

Known Malware Source Fingerprint Signature

Source fingerprint signature matches a known malicious package signature; route for source-aware review.

setup.jsView on unpkg

High

Findings

3 High2 Medium1 Low

HighKnown Malware Source Similaritysetup.js

HighKnown Malware Source Fingerprint Signaturesetup.js

HighPrevious Version Dangerous Deltasetup.js

MediumNetwork

MediumEnvironment Vars

LowFilesystem

Affected versions and remediation

This report applies to accounts-final-form@9.9.12.

The versions list below shows the verdict for each recorded version.

Avoid installing accounts-final-form@9.9.12. Remove it from direct dependencies and check your lockfile for transitive copies.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.
If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.

Evidence last updated: 2026-08-04 22:04:53.213Z (UTC).

Source advisory published: 2026-08-03 15:46:51.000Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

Versions

7 known versions

34.2.5latestMaliciousMalwareBlockPublishedAug 3, 2026, 4:52 AM 12.5.5MaliciousMalwareBlockPublishedAug 1, 2026, 1:04 PM 9.9.12shownMaliciousRemote Code ExecutionBlockPublishedAug 1, 2026, 11:30 AM 9.9.11MaliciousRemote Code ExecutionBlockPublishedAug 1, 2026, 11:22 AM

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Versions

Related packages

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Source & flagged code

Related packages

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