MalwareTips
Threat LensFile scan report

Is umpdc.dll safe?

Verdict
Safe

The Microsoft-signed DLL drew no detections from 75 engines, while four broad YARA matches lack antivirus or runtime corroboration.

The DLL carries a verified Microsoft Windows signature, and none of 75 antivirus engines detected it. Four community YARA rules matched, including a ransomware-associated rule, but those static matches are not corroborated by engine consensus or completed sandbox observations.

Use with normal care

Keep protection enabled and allow the file only if its verified Microsoft signature remains intact and its location is consistent with Windows. Investigate or replace it if found in an unexpected user-writable directory.

Read the full analysis
Saved file evidenceAntivirus consensus
0of 75 flagged
Flagged 0No detection 75
Digital specimenumpdc.dllb3407a812c7f34ac6b…aab4fe07235e4e
Size94.3 KB
Code signingMicrosoft Windows
SandboxPartial coverage
First seen2mo ago
Evidence3 priority signals
0 of 75 antivirus engines flagged the file.

Recommended next actions

01

Before using

Use it only as part of software obtained from the developer's official site or another source you independently trust.

02

If you already used it

Keep normal device protection enabled and stop if the file behaves unexpectedly.

Chapter 02

Intelligence

The saved assessment, checked against the scan evidence and recorded coverage.

MT AI Engine · Verdict analysis

The reasoning behind this verdict

This section explains the evidence supporting the verdict and keeps conflicting or missing signals visible.

89%Confidence
Very high
Analyst conclusion

The DLL carries a verified Microsoft Windows signature, and none of 75 antivirus engines detected it. Four community YARA rules matched, including a ransomware-associated rule, but those static matches are not corroborated by engine consensus or completed sandbox observations.

Where this verdict could be wrong3 caveats
  • YARAify matched four rules, including 'VECT_Ransomware' and 'DebuggerCheck__API'; these deserve caution despite lacking corroboration from 75 antivirus engines.
  • signing.signerStats covers only 2 prior samples, so the publisher-history sample is limited even though both were safe.
  • behaviour.sandboxCount=0 and contactedHosts=null leave runtime conduct and host reputation unverified.

These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.

Recommended action

Keep protection enabled and allow the file only if its verified Microsoft signature remains intact and its location is consistent with Windows. Investigate or replace it if found in an unexpected user-writable directory.

Scan transparency

Coverage & freshness

3 of 5 complete

Complete means the check returned a usable result. It does not mean the file is safe.

  • Antivirus

    Complete

    0 of 75 engines flagged the file.

  • Sandbox

    Partial

    Runtime data is present, but no completed sandbox environment is recorded.

  • Network

    Not run

    No contacted-host reputation check is recorded.

    No timestamp recorded

  • YARA

    Complete

    4 signature or behavior rules matched.

  • External intel

    Complete

    3 of 3 independent reference sources completed.

Chapter 03

Behavior

Plain-English impact first, then the observed runtime evidence.

Chapter 04

Detection & Forensics

Consensus, attribution, signatures, code structure, prevalence, and identity.

Chapter 05

Safety & FAQ

Complete recovery guidance and answers for the next decision.

What to do now

This file appears low risk based on the evidence available now.

  1. Recovery step 01

    Use it only as part of software obtained from the developer's official site or another source you independently trust.

  2. Recovery step 02

    A clean result reduces known risk, but it cannot guarantee that every new or targeted threat has been detected.

  3. Recovery step 03

    Keep your antivirus and Windows updates switched on so you stay protected.

Safety FAQ

Direct answers grounded in the saved verdict and evidence in this report.

7 evidence-based answers
Is umpdc.dll safe?
Evidence-based answer
umpdc.dll appears safe. 0 of 75 antivirus engines flagged it. It carries a verified digital signature from Microsoft Windows. Use it only as part of software obtained from the developer's official site or another source you independently trust.
What is umpdc.dll?
Evidence-based answer
umpdc.dll is a Windows library or loadable module, about 94 KB. Our analysis did not identify a verdict-driving threat signal. It carries a verified digital signature from Microsoft Windows. A file's name can be reused by different files, so we identify it by its cryptographic hash (below).
How many antivirus engines detected umpdc.dll?
Evidence-based answer
None — 0 of 75 antivirus engines flagged umpdc.dll. That's reassuring, though it is not proof that a file is safe, so we also weigh its behaviour, identity, and reputation.
Is umpdc.dll digitally signed?
Evidence-based answer
Yes — umpdc.dll carries a valid digital signature from Microsoft Windows, which confirms the file hasn't been tampered with since that publisher signed it. A valid signature is a positive signal, but note that malware is occasionally signed with stolen or abused certificates, so it isn't proof of safety on its own.
What is the SHA-256 hash of umpdc.dll?
Evidence-based answer
The SHA-256 hash of umpdc.dll is b3407a812c7f34ac6b5beefb2a78e8f2d7c4376f7c7012f880aab4fe07235e4e, and its MD5 is e0960a11b29f204112cd28c7c440e6e4. This hash is the file's unique fingerprint — two files with the same SHA-256 are identical. Use it to confirm you're looking at exactly this file (not just one with the same name) when comparing against antivirus databases or a download's published checksum.
Is it safe to use umpdc.dll?
Evidence-based answer
Based on the recorded evidence, umpdc.dll has a low observed risk and is properly signed. The important caveat is source: make sure you downloaded it from the official website or a trusted store, because attackers sometimes distribute malware-laced copies under a legitimate file's name. If your own antivirus flags it, verify the source and the exact hash before overriding the warning.
How up to date is this analysis of umpdc.dll?
Evidence-based answer
This report reflects the scan run on September 28, 2026. Because a file's hash never changes, the identity of umpdc.dll is fixed — but antivirus coverage improves over time, so a file that looks clean today can pick up detections later (and vice-versa). If you need the latest picture, MalwareTips staff can re-run the analysis from scratch.
Chapter 06

Community

Member reviews and reports for this exact file hash.

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The raw file is processed temporarily and is not retained after processing. Its hash and report are public and permanent, so the next person who checks the same file gets an instant answer. Unknown files may be submitted to VirusTotal for analysis. If you ran this file on your computer and are worried, scan your system with an up-to-date antivirus and change critical passwords from a different device.