Tracking a stolen code-signing certificate with osquery Logo

Tracking a stolen code-signing certificate with osquery

0
Free
Visit Website

Recently, 2.27 million computers running Windows were infected with malware signed with a stolen certificate from the creators of a popular app called CCleaner, and inserted into its software update mechanism. Fortunately, signed malware is now simple to detect with osquery thanks to a pull request submitted by our colleague Alessandro Gario that adds Windows executable code signature verification (also known as Authenticode). This post explains the importance of code signatures in incident response, and demonstrates a use case for this new osquery feature by using it to detect the recent CCleaner malware. If you are unfamiliar with osquery, take a moment to read our previous blog post in which we explain why we are osquery evangelists, and how we extended it to run on the Windows platform. Part of osquery’s appeal is its flexibility and open-source model – if there’s another feature you need built, let us know! Code-signed malware Code signing was intended to be an effective deterrent against maliciously modified executables, and to allow a user (or platform owner) to choose whether to run executables from untrusted sources. Unfortunately, on general-purpose computing platforms like Windows, third-party software vendors are individually responsible for protecting thei

FEATURES

ALTERNATIVES

A Serverless Security Orchestration Automation and Response (SOAR) Framework for AWS GuardDuty with various supported actions.

AWS Community repository of custom Config rules with instructions for leveraging and developing AWS Config Rules.

A modular incident response framework in Powershell that uses Powershell Remoting to collect data for incident response and breach hunts.

Todyl is a modular cybersecurity platform that consolidates SASE, SIEM, EDR/NGAV, MXDR, and GRC capabilities into a single-agent solution with centralized management.

A collection of incident response methodologies for various security incidents, providing easy-to-use operational best practices.

Anomali is an AI-Powered Security Operations Platform that delivers speed, scale, and performance at a reduced cost, combining ETL, SIEM, XDR, SOAR, and TIP to detect, investigate, respond, and remediate threats.

Dropzone AI is an autonomous AI agent for SOCs that performs end-to-end investigations of security alerts, integrating with existing cybersecurity tools and data sources.

Scumblr is a web application for periodic syncs of data sources and security analysis to streamline proactive security.

PINNED