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Heap sprays for web browsers are commonly implemented in JavaScript and spray the heap by creating large strings. The most common technique used is to start with a string of one character and concatenate it with itself over and over. This way, the length of the string can grow exponentially up to the maximum length allowed by the scripting engine.
Malware analysis is the study or process of determining the functionality, origin and potential impact of a given malware sample such as a virus, worm, trojan horse, rootkit, or backdoor. [1] Malware or malicious software is any computer software intended to harm the host operating system or to steal sensitive data from users, organizations or ...
As the JavaScript code was also processing user input and rendering it in the web page content, a new sub-class of reflected XSS attacks started to appear that was called DOM-based cross-site scripting. In a DOM-based XSS attack, the malicious data does not touch the web server.
Injection flaws can be identified through source code examination, [1] Static analysis, or dynamic testing methods such as fuzzing. [2] There are numerous types of code injection vulnerabilities, but most are errors in interpretation—they treat benign user input as code or fail to distinguish input from system commands.
Filtering out unexpected GET requests still prevents some particular attacks, such as cross-site attacks using malicious image URLs or link addresses and cross-site information leakage through <script> elements (JavaScript hijacking); it also prevents (non-security-related) problems with aggressive web crawlers and link prefetching. [1]
Research in combining static and dynamic malware analysis techniques is also currently being conducted in an effort to minimize the shortcomings of both. Studies by researchers such as Islam et al. [13] are working to integrate static and dynamic techniques in order to better analyze and classify malware and malware variants.
Traditional inspection technologies are unable to keep up with the recent outbreaks of widespread attacks. [2] Unlike inspection methods such as deep packet inspection (DPI), where only the data part (and possibly also the header) of a packet are inspected, deep content inspection (DCI)-based systems are exhaustive, such that network traffic packets are reassembled into their constituting ...
peacenotwar is a piece of malware, which has been characterized as protestware, [1] created by Brandon Nozaki Miller. In March 2022, it was added as a dependency in an update for node-ipc, a common JavaScript dependency.