What does the @douinfe/semi-ui malware do?

The OpenSSF Package Analysis project identified '@douinfe/semi-ui' @ 9.3.5 (npm) as malicious. It is considered malicious because: - The package communicates with a domain associated with malicious activity.

Which versions of @douinfe/semi-ui are malicious?

The following npm versions of @douinfe/semi-ui are flagged malicious: 9.3.5. Treat any of these as compromised.

How do I remediate @douinfe/semi-ui if I installed it?

Remove @douinfe/semi-ui from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

I already installed @douinfe/semi-ui — how do I know if it already compromised me?

If @douinfe/semi-ui 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.

How do I find @douinfe/semi-ui across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for @douinfe/semi-ui (version 9.3.5).

Part of a larger attack: @douinfe published 10 malicious packages. See the full campaign →

Malicious package

@douinfe/semi-uinpm

Advisory published Nov 5, 2024Updated Nov 5, 2024

@douinfe/semi-ui is a confirmed malicious npm package (MAL-2024-10349) that executes malicious code on install (malicious version 9.3.5). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @douinfe/semi-ui (npm)

MAL-2024-10349

Immediate action

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

npm uninstall @douinfe/semi-ui

What this malware does

The OpenSSF Package Analysis project identified '@douinfe/semi-ui' @ 9.3.5 (npm) as malicious.

It is considered malicious because:

The package communicates with a domain associated with malicious activity.

Malicious versions

1 flagged

9.3.5

Indicators of compromise (SHA-256)

19ca4a86d374c7183a13c8652c4a75b56c62f904cc492c9b61506ef524c9911c

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for @douinfe/semi-ui (version 9.3.5).
If you installed it — respond
Remove @douinfe/semi-ui from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.
Did it already run?
If @douinfe/semi-ui 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. @douinfe/semi-ui on npm has been identified as a malicious package (version 9.3.5 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Credits

OpenSSF: Package Analysis · finder

Detect & block this

O3 blocks @douinfe/semi-ui-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database