Using the Cert Graveyard

Summary: This post shares some key ways to leverage the Cert Graveyard database. I also share statistics on Cert Graveyard usage and share options to support my work. If you aren’t familiar with Cert Graveyard, I’ve described it in depth elsewhere: it is a public database for documenting abused code-signing certificates. We’ve reported and documentedContinue reading “Using the Cert Graveyard”

Impostor Certificates

It is common for malware to be signed with code signing certificates.

How is this possible? Impostors receive the cert directly and sign malware.

In this blog-post, we look at 100 certs used by Solarmarker malware to learn more.

Certified Bad

Authenticode Certificates are intended to ensure that software is created by vetted parties and that the software can be trusted; however, malware is often signed with valid Authenticode certificates and the process for signing malware and the implications are often misunderstood within InfoSec. This post takes a deep dive into my research on certificate abuse.