{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","favicon":"https://feed.craftedsignal.io/favicon-32x32.png","feed_url":"https://feed.craftedsignal.io/tags/code-integrity/feed.json","home_page_url":"https://feed.craftedsignal.io/","icon":"https://feed.craftedsignal.io/apple-touch-icon.png","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":[],"_cs_severities":["low"],"_cs_tags":["windows","code-integrity","signature-validation","wdac"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eWindows Code Integrity operational logs record instances where a process attempts to load a file (typically a DLL) that does not meet established signing requirements. This behavior may be triggered by revoked signatures, expired certificates using the Lifetime Signing EKU, or policies violated by non-compliant binaries. While often associated with legitimate but poorly signed software or antivirus drivers, these events are critical for identifying unauthorized or tampered code attempting to execute in restricted environments.\u003c/p\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eLegitimate system instability or software failure may occur if critical components are blocked from loading. From a security perspective, these events highlight potential attempts to load unauthorized DLLs or bypass Windows Defender Application Control (WDAC) policies.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEnable the 'Microsoft-Windows-CodeIntegrity/Operational' event log channel on endpoints where WDAC or strict code signing policies are enforced.\u003c/li\u003e\n\u003cli\u003eReview Event IDs 3033 (blocked) and 3034 (allowed due to audit policy) to identify anomalous file loads.\u003c/li\u003e\n\u003cli\u003eBaseline common false positives in your environment, such as those generated by AV agents, Electron-based applications, and legacy software that may not adhere to modern signing requirements.\u003c/li\u003e\n\u003cli\u003eCorrelate these events with Event ID 3089 to determine the specific technical reason for the signature validation failure.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-11-10T03:35:35Z","date_published":"2026-11-10T03:35:35Z","id":"https://feed.craftedsignal.io/briefs/2026-11-codeintegrity-signing-failure/","summary":"Windows Code Integrity logs (Event IDs 3033/3034) indicate that a process attempted to load a file that fails to meet required system signing standards, often signaling revoked signatures or expired certificates.","title":"Windows Code Integrity: Detection of Unmet Signing Level Requirements","url":"https://feed.craftedsignal.io/briefs/2026-11-codeintegrity-signing-failure/"}],"language":"en","title":"CraftedSignal Threat Feed - Code-Integrity","version":"https://jsonfeed.org/version/1.1"}