![]() ![]() Windows users can easily determine if a binary is signed by simply looking at the Explorer GUI: Right click on the binary and select “Properties” and the “Digital Signatures” tab. ![]() Since release 0.6.0, Velociraptor features an Authenticode parser allowing much deeper inspection of signed executables. This post explains the basics of Authenticode, and how Velociraptor can be used to extract Authenticode related information from remote systems. While the Authenticode standard itself is well documented, as DFIR practitioners we need to understand how Authenticode works, and how we can determine if an executable is trusted during our analysis. Additionally, recent versions of Windows will refuse load unsigned device drivers, therefore maintaining kernel integrity. To address this concern, Microsoft has introduced a standard called Authenticode, designed to sign trusted binaries, so they can be identified by the operating system. ![]() How do we know if a windows executable is a legitimate program written by the purported developer and not malware? Users may run malicious binaries with increasingly devastating consequences, including compromise or ransomware. ![]()
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