Information about oneauth.dll

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oneauth.dll

oneauth.dll is a Windows file recorded in the ThreatInfo database. It is associated with Microsoft OneAuth Authentication Library. The reported company name is Microsoft Corporation. The current detection status is Clean, based on the latest analysis from 2026-02-01 23:00:52 (3 months ago).

This record is currently marked as clean, but file reputation can depend on the exact path, hash, and source. Compare the MD5 and publisher data below with the file on your system.

File Details

Overview

ThreatInfo marks this publisher as trusted for this record, but the file hash and source should still match the expected software distribution.

ThreatInfo has observed oneauth.dll in the locations listed above. Files found in temporary folders, user profile folders, startup locations, or unusual application directories should be reviewed more carefully than files installed under a known program directory.

The strongest geographic signal for this file is Brazil with 100.0% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.

The most common operating system signal for oneauth.dll is Windows 10 with 100.0% of observed hits. If your system differs from the common profile, check whether the file was introduced by a specific installer, archive, or removable device.

Analysis

oneauth.dll is identified as pe for 64 systems. The subsystem is Windows CUI. PE header values are useful for triage, especially when they do not match the expected publisher, product, or release timeline.

PE section names and hashes can reveal packing, injected resources, or unusual build artifacts. Sections with uncommon names, very large raw data, or hashes that differ from a trusted copy deserve additional review.