Malicious trojan for Steam installer
Imagine a popular and widely spread Microsoft Windows application you'd like to exploit or create a backdoor for? Problem is: Many applications, such as setup program of Steam gaming platform by Valve Corporation is protected against common tampering or injection attempts.
However, there is a way to add malicious content into such programs. In this post, I demonstrate a simple attack approach and countermeasures which you should remember in any software environment.