Which versions of python-datetil are malicious?

The following PyPI versions of python-datetil are flagged malicious: 1.1.0, 1.1.2. Treat any of these as compromised.

How do I remediate python-datetil if I installed it?

python-datetil 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 python-datetil — how do I know if it already compromised me?

If python-datetil 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 python-datetil part of a known attack campaign?

Yes — python-datetil is associated with the RLMA-2025-04805, 2025-08-python-dateitil, RLUA-2026-00657 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 python-datetil across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for python-datetil (2 malicious versions).

Malicious package

python-datetilPyPI

Advisory published Aug 28, 2025Updated Mar 19, 2026

python-datetil is a confirmed malicious PyPI package (MAL-2025-47798) that opens a backdoor for remote access (malicious versions 1.1.0, 1.1.2). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in python-datetil (PyPI)

MAL-2025-47798

Immediate action

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

pip uninstall python-datetil

What this malware does

Package consist of a revshell only. The effective danger is low as it's clearly designed to connect to a localhost only and be used as awareness.

Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.

Campaign: 2025-08-python-dateitil

Reasons (based on the campaign):

typosquatting
The package contains code to create a reverse shell, allowing an attacker to execute any commands on the victim's machine.

Malicious versions

2 flagged

1.1.01.1.2

Indicators of compromise (SHA-256)

ed490ec8c26c823a6691f05de58ad8af8a6c494723c931b832a37c7080872bfb

e4ff5ef3a621b517125f087349704ef19fc1abc123215447bd7ae500eee018d1

ade289b57baa6b63431a9653e51023f1e631fbc0e36471acdb51c821410ea8dc

dd9abed4a26db50af52323bc50c816026f32c3bdb7cfdc791a1b85e9e2c3635a

20103dcbc798e5787fe40831dcdff447ba0a035dee2472353960550dc570c9f6

Detection & response playbook

Backdoor / remote access

Find it
Search your lockfiles and build artifacts for python-datetil (2 malicious versions).
If you installed it — respond
python-datetil 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 python-datetil 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. python-datetil on PyPI has been identified as a malicious package (versions 1.1.0, 1.1.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-048052025-08-python-dateitilRLUA-2026-00657

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193)
ReversingLabs · finder

Detect & block this

O3 blocks python-datetil-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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