Code-signing
OpenAI rotates macOS certs after Axios attack hit code-signing workflow
OpenAI is rotating potentially exposed macOS code-signing certificates after a GitHub Actions workflow executed a malicious Axios package during a recent supply chain attack. The company said that on March 31, 2026, the legitimate workflow downloaded and executed a compromised Axios package (version 1.14.1) that was used in attacks to deploy malware on devices. That […]
New MacSync malware dropper evades macOS Gatekeeper checks
The latest variant of the MacSync information stealer targeting macOS systems is delivered through a digitally signed, notarized Swift application. Security researchers at Apple device management platform Jamf say that the distribution method constitutes a significant evolution from past iterations that used less sophisticated “drag-to-Terminal” or ClickFix tactics. “Delivered as a code-signed and notarized Swift application within […]
Microsoft Trust Signing service abused to code-sign malware
Cybercriminals are abusing Microsoft’s Trusted Signing platform to code-sign malware executables with short-lived three-day certificates. Threat actors have long sought after code-signing certificates as they can be used to sign malware to appear like they are from a legitimate company. Signed malware also has the advantage of potentially bypassing security filters that would normally block unsigned […]