httpclient

Malware updated 3 months ago (2024-11-29T13:57:47.542Z)
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HttpClient is a type of malware that exploits vulnerabilities in the Apache HttpClient, a software library used for making HTTP requests. It primarily functions through the DownloadFile() function, which retrieves files from a given URL and saves them onto the victim's machine using HttpClient and a bot token for secure access. The malware operates by leveraging the .NET framework's "HttpClient" class to send an HTTP GET request to a specified asset URL. The vulnerability that allows HttpClient to function stems from inadequate validation of user-supplied input in Apache HttpClient. This flaw exposes systems to potential security threats as it provides an entry point for malicious actors to inject harmful code or retrieve sensitive data. Moreover, this lack of sufficient input validation can lead to unexpected system behavior or crashes, thereby disrupting operations. Additionally, another vulnerability exists due to Apache Commons HttpClient's failure to properly verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate. This flaw could allow attackers to spoof SSL servers via a crafted certificate, potentially leading to man-in-the-middle attacks where sensitive information can be intercepted and stolen. Therefore, immediate patching and updates are required to mitigate these risks.
Description last updated: 2024-11-04T16:02:23.372Z
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