Major security vulnerability discovered in popular 3CX desktop app, extensive explanation and summary.
This blog post discusses a security vulnerability discovered in the popular 3CX desktop app, a software used by many large businesses worldwide. The blog post begins by describing the official 3CX desktop app and how it is used as a replacement for traditional business phone lines. It then delves into the discovery of unexpected malicious activity originating from the 3CX desktop app by security analysts from CrowdStrike. The company's response to the discovery is criticized and the lack of preparedness of many large businesses for malware attacks is highlighted. The blog post continues with a technical explanation of how the security vulnerability works, including the presence of malicious DLL files and the encryption of malicious payloads. The severity of the security vulnerability is emphasized as it can affect hundreds or even thousands of companies using the 3CX desktop app.