Analyzing Impala Stealer – Payload of the first NuGet attack campaign

Analyzing Impala Stealer – Payload of the first NuGet attack campaign In this blog post, we’ll provide a detailed analysis of a malicious payload we’ve dubbed “Impala Stealer”, a custom crypto stealer which was used as the payload for the NuGet malicious packages campaign we’ve exposed in our previous post. The sophisticated campaign targeted .NET …

Common Payloads Attackers Plant in Malicious Software Packages

In this third post in our series on Malicious Software Packages, we’ll focus on the aftermath of a successful attack and how the attacker executes payloads to serve their needs through various real-life scenarios. Before we start, let’s review a few highlights from the second post you might’ve missed: There are common types of infection methods …

The Software Supply Chain Risks You Need to Know

Code that an organization’s developers create is only the beginning of modern software development. In fact, first-party code is likely to be only a small portion of an application – sometimes as little as 10% of the application’s artifact ecosystem. An enterprise’s software supply chain is made of many parts, accumulated from many sources: open …

npm Attack Targets Azure Developers

Large-scale npm attack targets Azure developers with malicious packages

The JFrog Security research team continuously monitors popular open source software (OSS) repositories with our automated tooling to avert potential software supply chain security threats, and reports any vulnerabilities or malicious packages discovered to repository maintainers and the wider community. Two days ago, several of our automated analyzers started alerting on a set of packages …

Malicious NPM packages Targeting Malware Authors

Malware Civil War – Malicious npm Packages Targeting Malware Authors

The JFrog Security research team continuously monitors popular open source software (OSS) repositories with our automated tooling to avert potential software supply chain security threats, and reports any security vulnerability or malicious packages discovered to repository maintainers and the wider community. Most recently we disclosed 25 malicious packages in the npm repository that were picked up …

3 Remote Access Trojans in PyPI

JFrog Discloses 3 Remote Access Trojans in PyPI

The JFrog Security research team continuously monitors popular open source software (OSS) repositories with our automated tooling to detect and avert potential software supply chain security threats. After validating the findings, the team reports any security vulnerabilities or malicious packages discovered to repository maintainers and the wider community. We have previously shared details on our …

Mind Your Dependencies: Defending against malicious npm packages

Modern software projects are mostly composed of open source code. The question of who really controls this code, and is responsible for detecting and fixing software supply chain security issues, became a significant source of concern after the discovery of the Log4Shell vulnerability. In a more recent development, the highly popular colors and faker npm …

Malicious npm Packages Are After Your Discord Tokens – 17 New Packages Disclosed

The JFrog Security research team continuously monitors popular open source software (OSS) repositories with our automated tooling, and reports any vulnerabilities or malicious packages discovered to repository maintainers and the wider community. Most recently we disclosed 11 malicious packages in the PyPI repository, a discovery that shows attacks are getting more sophisticated in their approach. …

Python Malware Imitates Signed PyPI Traffic in Novel Exfiltration Technique

The JFrog Security research team continuously monitors popular open source software (OSS) repositories with our automated tooling to report vulnerable and malicious packages to repository maintainers. Earlier this year we disclosed several malicious packages targeting developers’ private data that were downloaded approximately 30K times. Today, we will share details about 11 new malware packages that …