What does the littest malware do?

The OpenSSF Package Analysis project identified 'littest' @ 0.3.1 (crates.io) as malicious. It is considered malicious because: - The package communicates with a domain associated with malicious activity.

Which versions of littest are malicious?

The following crates.io versions of littest are flagged malicious: 0.3.1. Treat any of these as compromised.

How do I remediate littest if I installed it?

Remove littest 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 littest — how do I know if it already compromised me?

If littest 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 littest across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for littest (version 0.3.1).

Malicious package

littestcrates.io

littest is a confirmed malicious crates.io package (MAL-2023-8429) that executes malicious code on install (malicious version 0.3.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in littest (crates.io)

MAL-2023-8429

Immediate action

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

remove littest

What this malware does

The OpenSSF Package Analysis project identified 'littest' @ 0.3.1 (crates.io) as malicious.

It is considered malicious because:

The package communicates with a domain associated with malicious activity.

Malicious versions

1 flagged

0.3.1

Indicators of compromise (SHA-256)

b7dbb9d0364d3e2b9efec40fc7a2ecdca02406774e6a4359423e6357cf9647e4

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for littest (version 0.3.1).
If you installed it — respond
Remove littest 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 littest 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. littest on crates.io has been identified as a malicious package (version 0.3.1 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 littest-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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