Which versions of avvio.sky.userdataservice are malicious?

The following NuGet versions of avvio.sky.userdataservice are flagged malicious: 99.9.9. Treat any of these as compromised.

How do I remediate avvio.sky.userdataservice if I installed it?

Remove avvio.sky.userdataservice 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 avvio.sky.userdataservice — how do I know if it already compromised me?

If avvio.sky.userdataservice 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 avvio.sky.userdataservice part of a known attack campaign?

Yes — avvio.sky.userdataservice is associated with the RLMA-2026-00012 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 avvio.sky.userdataservice across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for avvio.sky.userdataservice (version 99.9.9).

Malicious package

avvio.sky.userdataserviceNuGet

Advisory published Mar 18, 2026Updated Mar 19, 2026

avvio.sky.userdataservice is a confirmed malicious NuGet package (MAL-2026-1884) that executes malicious code on install (malicious version 99.9.9). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in avvio.sky.userdataservice (NuGet)

MAL-2026-1884

Immediate action

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

remove avvio.sky.userdataservice

Malicious versions

1 flagged

99.9.9

Indicators of compromise (SHA-256)

67bdd29b27c2f52a930dccdd4e26d48cb615d8bbb0aa2668ba39ae97ff0b8671

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for avvio.sky.userdataservice (version 99.9.9).
If you installed it — respond
Remove avvio.sky.userdataservice 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 avvio.sky.userdataservice 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. avvio.sky.userdataservice on NuGet has been identified as a malicious package (version 99.9.9 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-00012

Credits

ReversingLabs · finder

Detect & block this

O3 blocks avvio.sky.userdataservice-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

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