What does the dateuuidv2 malware do?

On require() of dateuuidv2, lib/bootstrap.js invokes extractDateISO() which reads the consumer project's README.md for a 'PORT=' line and uses those digits as key material to AES-256-GCM decrypt an embedded ciphertext into a C2 URL. The package then POSTs the installer's os.platform() and os.release() to that URL, writes the HTTP response to os.tmpdir()/temp_ .vbs (with the extension assembled via 'v'+'b'+'s' string concatenation to evade literal-string matching), and executes the file via child_process.exec. The package's advertised purpose is a UUID/date utility; AES-GCM ciphertext for a hidden destination, README-derived key material, extension-splitting, and unconditional execu

Which versions of dateuuidv2 are malicious?

The following npm versions of dateuuidv2 are flagged malicious: 1.0.0, 1.0.1. Treat any of these as compromised.

How do I remediate dateuuidv2 if I installed it?

dateuuidv2 establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.

I already installed dateuuidv2 — how do I know if it already compromised me?

If dateuuidv2 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 dateuuidv2 part of a known attack campaign?

Yes — dateuuidv2 is associated with the IN-MAL-2026-014622, IN-MAL-2026-014620 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 dateuuidv2 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 dateuuidv2 (2 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging dateuuidv2 across your stack and pipelines.

Malicious package

dateuuidv2npm

dateuuidv2 is a confirmed malicious npm package (MAL-2026-12176) that opens a backdoor for remote access (malicious versions 1.0.0, 1.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in dateuuidv2 (npm)

MAL-2026-12176

Immediate action

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

npm uninstall dateuuidv2

What this malware does

On require() of dateuuidv2, lib/bootstrap.js invokes extractDateISO() which reads the consumer project's README.md for a 'PORT=' line and uses those digits as key material to AES-256-GCM decrypt an embedded ciphertext into a C2 URL. The package then POSTs the installer's os.platform() and os.release() to that URL, writes the HTTP response to os.tmpdir()/temp_<timestamp>.vbs (with the extension assembled via 'v'+'b'+'s' string concatenation to evade literal-string matching), and executes the file via child_process.exec. The package's advertised purpose is a UUID/date utility; AES-GCM ciphertext for a hidden destination, README-derived key material, extension-splitting, and unconditional execution of the fetched response are evasion mechanics unrelated to any UUID functionality. Result is arbitrary code execution on any Node process that imports the module.

Malicious versions

2 flagged

1.0.01.0.1

Indicators of compromise (SHA-256)

4165eefd9d54cf18f222a72424f4c4c5fbce30c6f81d4dfdbea6fac7a050e6ed

fe45b7e605cc8d939075909d39c9b8a392428c4cc1068f23cd201e2ba3817d1b

Detection & response playbook

Backdoor / remote access

Find it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for dateuuidv2 (2 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging dateuuidv2 across your stack and pipelines.
If you installed it — respond
dateuuidv2 establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.
Did it already run?
If dateuuidv2 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 dateuuidv2 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. dateuuidv2 on npm has been identified as a malicious package (versions 1.0.0, 1.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-014622IN-MAL-2026-014620

References

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks dateuuidv2-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.

Malware detection Runtime egress monitoring

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