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SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 57

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Python

Pierluigi Paganini November 05, 2022
29 malicious PyPI packages spotted delivering the W4SP Stealer

Cybersecurity researchers discovered 29 malicious PyPI packages delivering the W4SP stealer to developers’ systems. Cybersecurity researchers have discovered 29 packages in the official Python Package Index (PyPI) repository designed to infect developers’ systems with an info-stealing malware dubbed W4SP Stealer. “It appears that these packages are a more sophisticated attempt to deliver the W4SP Stealer on […]

Pierluigi Paganini September 22, 2022
A 15-Year-Old Unpatched Python bug potentially impacts over 350,000 projects

More than 350,000 open source projects can be potentially affected by a 15-Year-Old unpatched Python vulnerability More than 350,000 open source projects can be potentially affected by an unpatched Python vulnerability, tracked as CVE-2007-4559 (CVSS score: 6.8), that was discovered 15 years ago. The issue is a Directory traversal vulnerability that resides in the ‘extract’ […]

Pierluigi Paganini October 05, 2021
Unnamed Ransomware gang uses a Python script to encrypt VMware ESXi servers

An unnamed ransomware gang used a custom Python script to target VMware ESXi and encrypt all the virtual machines hosted on the server. Researchers from Sophos were investigating a ransomware attack when discovered that the attackers employed a Python script to encrypt virtual machines hosted on VMware ESXi servers. In the attack investigated by the […]

Pierluigi Paganini August 03, 2021
Experts found potential remote code execution in PyPI

A flaw in the GitHub Actions workflow for PyPI ’s source repository could be exploited to potentially execute arbitrary code on pypi.org. Security researcher RyotaK disclosed three flaws in PyPI, the most severe one could potentially lead to the compromise of the entire PyPI infrastructure. Python Package Index (PyPI) is the official third-party software repository […]

Pierluigi Paganini June 28, 2021
Six typosquatting packages in PyPI repository laced with crypto miner

Researchers discovered six rogue packages in the official Python programming language’s PyPI repository containg cryptocurrency mining malware. Experts from security firm Sonatype have uncovered six typosquatting packages in the official Python programming language’s PyPI repository that were laced with cryptomining malware. The Python Package Index (PyPI) is a repository of software for the Python programming language, it allows users […]

Pierluigi Paganini September 13, 2018
New PyLocky Ransomware stands out for anti-machine learning capability

Security experts from Trend Micro have spotted a new strain of ransomware involved in attacks in July and August, the malicious code was posing as the Locky ransomware. Researchers at Trend Micro have detected a new ransomware family, dubbed PyLocky, that was used in attacks between July and August, the malware was posing as the Locky ransomware using its ransom […]

Pierluigi Paganini July 16, 2018
Code hosting service GitHub can now scan also for vulnerable Python code

The code hosting service GitHub added Python to the list of programming languages that it is able to auto-scan for known vulnerabilities. Good news for GitHub users, the platform added Python to the list of programming languages that it is able to auto-scan for known vulnerabilities. In March, the code hosting service GitHub confirmed that the introduction […]

Pierluigi Paganini May 09, 2018
Are you using Python module ‘SSH Decorator’? Newer versions include a backdoor

A backdoor was discovered in the Python module named SSH Decorator (ssh-decorate), that was developed by Israeli developer Uri Goren. Are you using the Python module ‘SSH Decorator’? You need to check the version number, because newer versions include a backdoor. The library was developed to handle SSH connections from Python code. Early this week, a developer […]

Pierluigi Paganini March 02, 2018
CannibalRAT, a RAT entirely written in Python observed in targeted attacks

Security researchers from Cisco Talos discovered a new remote access Trojan (RAT) dubbed CannibalRAT that has been written entirely in Python. The CannibalRAT RAT is being used in highly targeted attacks. the experts explained that even if it isn’t very sophisticated it exhibits signs of code cannibalisation from other open-source projects. “The RAT itself is not very sophisticated, […]

Pierluigi Paganini December 10, 2017
Severe flaws in most popular programming languages could expose to hack any secure application built on top of them

Security expert discovered severe flaws in most popular programming languages that could expose to hack any secure application built on top of them. Last week, IOActive Senior Security Consultant Fernando Arnaboldi presented at the Black Hat Europe 2017 security conference the results of an interesting research about vulnerabilities in several popular interpreted programming languages. Arnaboldi […]

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    recent articles

    Taiwan Web Infrastructure targeted by APT UAT-7237 with custom toolset

    APT / August 16, 2025

    New NFC-Driven Android Trojan PhantomCard targets Brazilian bank customers

    Malware / August 15, 2025

    Cisco fixed maximum-severity security flaw in Secure Firewall Management Center

    Security / August 15, 2025

    'Blue Locker' Ransomware Targeting Oil & Gas Sector in Pakistan

    Malware / August 15, 2025

    Hackers exploit Microsoft flaw to breach Canada ’s House of Commons

    Hacking / August 15, 2025

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