What are Man-in-the-Middle (MitM) attacks in the context of malware and how are they implemented?
Man-in-the-Middle (MitM) attacks represent a cyber threat vector where an attacker secretly intercepts and, if necessary, alters the communication between two parties who believe they are communicating directly with each other. In the context of malware, such attacks are often implemented using specialized trojans that infiltrate the operating system and modify the network stack, root certificates, or browser settings.
Malware can install its own digital certificates into the trusted store of the victim's operating system. This allows the malicious software to decrypt secure HTTPS traffic directly on the local machine, intercepting credentials, session cookies, and financial information before it is encrypted for transmission to the actual server. Meanwhile, the user sees a green padlock in the address bar because the certificate has been replaced locally.
To protect against such attacks, specialists and developers are recommended to use the following measures: