# Arch Linux Is Under Attack... Source: https://www.youtube.com/watch?v=rUzzBY-P3HE Recap page: https://rapidrecap.app/video/rUzzBY-P3HE Generated: 2025-08-01T17:32:51.302+00:00 --- ## Quick Overview Arch Linux is under attack from malicious packages uploaded to the Arch User Repository (AUR) that contain CHAOS RAT malware, which was discovered and removed by the Arch Linux security team, but users are warned to be vigilant about package sources and to remove any compromised packages they may have installed. **Key Points:** - Malicious packages containing CHAOS RAT malware were uploaded to the Arch User Repository (AUR). - The compromised packages were "librewolf-fix-bin", "firefox-patch-bin", and "zen-browser-patched-bin". - The packages were submitted by a user named "danikpapas" and were quickly removed by the Arch Linux security team. - CHAOS RAT is an open-source remote administration tool capable of uploading/downloading files, executing commands, and opening reverse shells. - The AUR's lack of a formal review process makes it vulnerable to malicious package submissions. - Users who installed these packages are advised to remove them immediately and check their systems for suspicious "systemd-initd" executables. - The presenter recommends using multi-factor authentication, such as YubiKey, for enhanced security. ![Screenshot at 00:18: A screen capture displaying system monitoring tools, likely demonstrating the capabilities of the CHAOS RAT malware, such as CPU and memory usage, and network activity.](https://ss.rapidrecap.app/screens/rUzzBY-P3HE/00-00-18.png) **Context:** The Arch User Repository (AUR) is a community-driven repository for Arch Linux users, allowing them to publish package build scripts (PKGBUILDs) to automate the process of downloading, building, and installing software not included in the official repositories. Unlike official repositories, the AUR does not have a formal review process, making it susceptible to malicious submissions. This video discusses a recent incident where malware was distributed through the AUR. ## Detailed Analysis This video discusses a security threat to Arch Linux users where malicious packages containing CHAOS RAT malware were uploaded to the Arch User Repository (AUR). The packages, named "librewolf-fix-bin", "firefox-patch-bin", and "zen-browser-patched-bin", were uploaded by a user named "danikpapas" and were found to contain a remote access trojan. These packages were quickly identified and removed by the Arch Linux security team within days of their submission. CHAOS RAT is an open-source remote administration tool that can be used to upload and download files, execute commands, and open a reverse shell on infected systems. It's commonly used in cryptocurrency mining campaigns but can also be used for harvesting credentials, stealing data, or cyber espionage. The video highlights that the AUR, unlike more formal package repositories, does not have a rigorous review process for new or updated packages, making it the user's responsibility to review code and installation scripts before building and installing packages. The threat actor, "danikpapas", also created another account, "Quobleggo", to upload similar malicious packages like "minecraft-cracked" and "ttf-all-ms-fonts". The video advises users who may have installed these packages to remove them immediately and check their systems for any suspicious "systemd-initd" executables. The presenter also touches on the importance of multi-factor authentication, specifically mentioning YubiKey as a solution, and provides a discount link for viewers. ### Malicious Packages on AUR - "librewolf-fix-bin", "firefox-patch-bin", "zen-browser-patched-bin" uploaded by "danikpapas" - CHAOS RAT malware detected - Packages removed by Arch Linux security team within days ### CHAOS RAT Functionality - Open-source remote administration tool - Upload/download files, execute commands, open reverse shell - Used in crypto mining, credential harvesting, data theft, cyber espionage ### AUR Vulnerability - Lack of formal review process for new/updated packages - User responsibility to review code and installation scripts - Threat actor "danikpapas" also used "Quobleggo" account for similar uploads ### Security Recommendation - Users who installed compromised packages must remove them - Check systems for suspicious "systemd-initd" executables - Importance of multi-factor authentication (YubiKey mentioned) ![Screenshot at 00:00: The video begins with a screen recording showing a Reddit thread discussing "Arch Linux is Under Attack".](https://ss.rapidrecap.app/screens/rUzzBY-P3HE/00-00-00.png) ![Screenshot at 00:10: A screen capture of the Arch Linux website, highlighting its description as a "simple, lightweight distribution".](https://ss.rapidrecap.app/screens/rUzzBY-P3HE/00-00-10.png) ![Screenshot at 00:18: A screen showing system monitoring tools, likely related to the CHAOS RAT malware's capabilities.](https://ss.rapidrecap.app/screens/rUzzBY-P3HE/00-00-18.png) ![Screenshot at 00:31: The video explains the difference between the Arch User Repository \(AUR\) and a community repository, noting AUR's open submission policy.](https://ss.rapidrecap.app/screens/rUzzBY-P3HE/00-00-31.png) ![Screenshot at 01:05: A screenshot of the Arch Wiki page explaining PKGBUILD files, which are used in the AUR.](https://ss.rapidrecap.app/screens/rUzzBY-P3HE/00-01-05.png) ![Screenshot at 01:37: The presenter discusses specific malicious packages found in the AUR, naming "librewolf-fix-bin", "firefox-patch-bin", and "zen-browser-patched-bin".](https://ss.rapidrecap.app/screens/rUzzBY-P3HE/00-01-37.png) ![Screenshot at 01:52: A Reddit post from "r/archlinux" titled "AUR is so awesome!!!" which has been removed by moderators.](https://ss.rapidrecap.app/screens/rUzzBY-P3HE/00-01-52.png) ![Screenshot at 02:01: A Reddit comment pointing out that the AUR packages are "clearly malware" and that the submitter's account was created the same day.](https://ss.rapidrecap.app/screens/rUzzBY-P3HE/00-02-01.png) ![Screenshot at 02:14: A Reddit comment detailing the suspicious nature of a package, including a link to the source code on GitHub.](https://ss.rapidrecap.app/screens/rUzzBY-P3HE/00-02-14.png) ![Screenshot at 02:33: The presenter navigates to the user "timhorgan69"'s Reddit profile, showing their activity and previously removed posts about AUR packages.](https://ss.rapidrecap.app/screens/rUzzBY-P3HE/00-02-33.png)