Malicious Code in selfverstringping (PyPI)

selfverstringping Updated 02 Oct 2025

Summary

25/02/2023
CRITICAL
No i
Critical
Not published

MAL-2023-6751: Malicious code in selfverstringping (PyPI). Affected versions are not published. No fix is published. How to fix ↓

Free scan

Check if this vulnerability affects your application

Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats
SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml
Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile
Javascript package-lock.json · yarn.lock · pnpm-lock.yaml
PHP composer.lock
Python poetry.lock · requirements.txt · Pipfile.lock
Go go.mod
Rust Cargo.lock
Ruby Gemfile.lock
Dart pubspec.lock
C/C++ conan.lock
Elixir mix.lock
Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Sponsored Lume, the Habilume companion Habilume Habit tracker with a companion that grows with you Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent. App Store Google Play

Background

The selfverstringping package is an open-source Python package available on PyPI. It is used for self-verifying string pinging functionality. The package allows users to ping strings and verify their integrity. However, a vulnerability has been discovered in this package that involves the presence of malicious code.

Vulnerability Detail

The vulnerability, identified as MAL-2023-6751, originates from a group called EsqueleSquad. They have published nearly 6000 malicious PyPi and NPM packages, including selfverstringping. These packages execute spyware and information-stealing malware. The specific impact of this vulnerability on the selfverstringping package is not mentioned in the provided information.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

pip uninstall selfverstringping

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Workaround

There is no specific workaround mentioned in the provided information. However, removing the selfverstringping package and ensuring the use of trusted packages can mitigate the risk of this vulnerability.

Conclusion

The selfverstringping package has been found to contain malicious code as part of a larger campaign by the EsqueleSquad group. It is recommended to remove this package from your project and replace it with a trusted alternative. Regularly reviewing and updating the packages used in your project is essential for maintaining security.

See every vulnerability recorded for selfverstringping →

Share this vulnerability

FAQ

The selfverstringping package is a Python package available on PyPI that provides self-verifying string pinging functionality.

The specific impact of the vulnerability on the selfverstringping package is not mentioned in the provided information.

The vulnerability was discovered by Checkmarx, a security company specializing in supply chain security.

To fix this vulnerability, remove the selfverstringping package from your project and replace it with a trusted alternative. Regularly update and review the packages used in your project to avoid potential security risks.

There is no specific workaround mentioned in the provided information. However, removing the selfverstringping package and ensuring the use of trusted packages can mitigate the risk of this vulnerability.

Sponsored Lume, the Habilume companion Habilume Habit tracker with a companion that grows with you Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent. App Store Google Play

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

pip uninstall selfverstringping

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Subscribe to Vulert on Telegram
Daily digest of new CVEs, critical and high severity, affected packages and fixes — plus a weekly roundup.
Join the channel →
Help improve this record
Report an issue or send feedback