Which versions of test1hh235 are malicious?

The following npm versions of test1hh235 are flagged malicious: 99.99.99. Treat any of these as compromised.

How do I remediate test1hh235 if I installed it?

test1hh235 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 test1hh235 — how do I know if it already compromised me?

If test1hh235 was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Is test1hh235 part of a known attack campaign?

Yes — test1hh235 is associated with the IN-MAL-2026-020208 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 test1hh235 across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for test1hh235 (version 99.99.99).

Malicious package

test1hh235npm

Advisory published Sep 21, 2026Updated Sep 21, 2026

test1hh235 is a confirmed malicious npm package (MAL-2026-16314) that opens a backdoor for remote access (malicious version 99.99.99). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in test1hh235 (npm)

MAL-2026-16314

Immediate action

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

npm uninstall test1hh235

What this malware does

Package declares both preinstall and postinstall lifecycle hooks that execute index.js on npm install. index.js issues an HTTP GET to the hardcoded bare IP 128.199.122.145 over plain HTTP, embedding the package name in the query string (http://128.199.122.145/?test1hh235). Manifest shape is consistent with a dependency-confusion reconnaissance probe: version 99.99.99 (implausibly high to win resolution against an internal package), empty description, and a typo-prone name. The beacon fires automatically during install and signals successful resolution/installation to an attacker-controlled host, confirming the target environment for follow-on attack.

Malicious versions

1 flagged

99.99.99

Indicators of compromise (SHA-256)

c9c95dc5aea7805ca50e114bae45747a46edb7331311044b0d3730e303d4351a

Detection & response playbook

Backdoor / remote access

Find it
Search your lockfiles and build artifacts for test1hh235 (version 99.99.99).
If you installed it — respond
test1hh235 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 test1hh235 was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. test1hh235 on npm has been identified as a malicious package (version 99.99.99 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-020208

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks test1hh235-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

Explore

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