All news with #code signing tag

AWS Adds ML-DSA Post-Quantum Code Signing to Private CA

🔐 AWS announced support for post-quantum ML-DSA code signing in AWS Private CA, integrated with AWS KMS. The integration lets customers create ML-DSA X.509 certificate chains and generate KMS-held ML-DSA key pairs to sign binaries, enabling quantum-resistant code-signing, device authentication, and private-PKI workflows such as mTLS or IKEv2/IPsec. A provided Java Runner demonstrates CA creation, CSR issuance, CMS detached signing with SHAKE256, and signature verification against customer-managed roots.

Rhysida Ransomware Uses Microsoft Signing to Evade Defenses

🛡️ Rhysida ransomware operators have shifted to malvertising and the abuse of Microsoft Trusted Signing certificates to slip malware past defenses. By buying Bing search ads that point to convincing fake download pages for Microsoft Teams, PuTTY and Zoom, they deliver initial access tools such as OysterLoader (formerly Broomstick/CleanUpLoader) and Latrodectus. Signed, packaged binaries evade static detection and often run without scrutiny on Windows endpoints.

Microsoft Blocks Ransomware Campaign Targeting Teams Users

🛡️ Microsoft said it disrupted a ransomware campaign that used fake Teams installers to deliver a backdoor and prepare for encryption operations. Attackers lured victims with impersonated MSTeamsSetup.exe files hosted on malicious domains, which installed a loader and a fraudulently signed Oyster backdoor. The group identified as Vanilla Tempest intended to follow with Rhysida ransomware. Microsoft revoked over 200 fraudulent code-signing certificates and says a fully enabled Defender Antivirus will block the threat.

Improving JavaScript Trustworthiness via WAICT for the Web

🔒 Cloudflare presents an early design for Web Application Integrity, Consistency, and Transparency (WAICT) to address the risks of mutable JavaScript in sensitive web apps. The proposal pairs expanded Subresource Integrity (SRI) and a signed integrity manifest with append-only transparency logs and third-party witnesses to provide verifiable inclusion and consistency proofs. Browser preload lists, proof-of-enrollment, and client-side cooldowns are used to avoid extra round trips and to limit stealthy changes. Cloudflare plans to participate as a service provider and to collaborate on standardization.

AWS Lambda Code Signing Now Available in GovCloud Regions

🔐 AWS Lambda now supports code signing in AWS GovCloud (US-West and US-East) through the managed AWS Signer service. Lambda validates signatures at deployment to ensure code has not been altered and that it originates from trusted signers. Administrators can create Signing Profiles, bind allowed profiles to functions, and configure whether failed signature checks produce warnings or reject deployments. Access and permissions are controlled via IAM, and there is no additional charge to use this capability.