
The Anatomy of a Malicious Package
#Security Testing#Malware Analysis
A static analysis tool for PE files that detects malicious behavior and provides information for manual analysis.
Understanding the Characteristics of Malicious Packages
What does a malicious package actually look like in practice? In this section, we will explore some hypothetical scenarios to understand how malware typically operates and the types of functions it may perform, ranging from relatively simple and temporary actions to more complex behaviors.
Since this post primarily focuses on JavaScript, we need to consider two distinct threat models: what in-browser malware appears like, and how it differs from on-host malware.
Attacker Motivations and Mentality
As we embark on this thought experiment, the first aspect to examine is the potential targets and objectives of an attacker.
Understanding the Concept of 'On-Host' Malware in NPM Packages
The concept of 'on-host' malware in NPM packages may initially seem counterintuitive, as it is typically associated with browser-related issues. This association arises from the belief that browser environments must be secure, given that they operate within a sandbox.
There are, interestingly enough, some notable advantages
There are, interestingly enough, some significant advantages from the perspective of an attacker.