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Verdict Suspicious

Analyzed , 13 days ago

Is autorun.inf safe? Treat it as suspicious.

This tiny autorun configuration file was flagged by one engine with a generic autorun label, but we lack the content or evidence from the test run needed to judge it.

Read the whole reasonShow less

Why Suspicious? One antivirus engine (Trellix (McAfee)) flags it; nothing else confirms it.

Limited evidence

Don't open it until you know where it came from

Treat the file as unverified and do not open any program it references. If it appeared on removable media you did not set up, scan the entire drive with up-to-date security software.

What to do now4 steps

Some signs point to a problem, but nothing confirms it is harmful. Treat it with caution.

What to do

  1. Don't open it unless you're sure where it came from.

  2. Check where you got it: an unexpected attachment, a link someone sent you or a re-upload is a red flag.

  3. If you can't confirm where it came from, delete it. If you need the program, download it again from the publisher's own website.

If you already opened it

  1. Stop using it, run a full scan with your antivirus and watch for unexpected behavior or security alerts.

Not sure what to do?

Ask the MalwareTips community before you run it. If you already ran it, follow the cleanup guide.

Paste this report's link in your topic so helpers can see what was found.

Why we think so

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autorun.inf: Suspicious — MalwareTips file scan

The link always shows the latest result for this exact file (its SHA-256 fingerprint).

Reads the latest antivirus results for this file's hash. Nothing is uploaded.

Antivirus results

1 of 61 flagged

  • Flagged 1
  • No detection 60
  • No result 14
Fileautorun.inf47 BSHA-256 b50925b6c069…d07eba
  • Code signing Not applicable
  • Test run Not run
  • First seen 13d ago
1 of the 61 antivirus engines that checked it flags it (Trellix (McAfee)).

Chapter 02

Why we think so

3 points against it and 2 in its favour, checked against the scan evidence.

MT AI Engine · Verdict analysis

The reasoning behind this verdict

Analyst conclusion

One of the 61 antivirus engines that checked it (TrellixENS) flags this 47-byte autorun file with a generic label, and all other major antivirus engines did not flag it. Autorun files can instruct older systems to launch a program from a USB drive. We could not see which program this one points to.

Where this verdict could be wrong2 caveats
  • Autorun files are plain text and cannot run anything themselves. Modern Windows also ignores autorun entries on USB drives, so the file may be harmless leftover media metadata.
  • The single detection uses a generic label and no other engine agrees, which is a common false-positive pattern.

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

6 sources checked · 4 complete · 1 not run · 1 not needed or not applicable. See every source

Chapter 03

Technical details

1 of the 61 antivirus engines that checked it flags it.

Sources checked

Every check behind this verdict

6 sources checked · 4 complete · 1 not run · 1 not needed or not applicable. Complete means the check returned a usable result; it does not mean the file is safe.

SourceStatusResultChecked
Antivirus enginesVirusTotal · 75 enginesCompleteRisk signal: 1 of 61 engines flagged it · 14 gave no result Details for antivirus engines
Sandbox runVirusTotal sandboxesNot runNo sandbox run is recorded for this fileNo date recorded
Contacted hostsMalwareTips URL scannerNot neededNo sandbox run, so there were no contacted hosts to checkNo date recorded
Signature rulesYARAify community rules + MalwareTips rulesCompleteNo rule matched
Malware sample databaseabuse.ch MalwareBazaarCompleteNot listed
Known-software referenceCIRCL hashlookupCompleteNo match

Engines that flagged it 1

  • TrellixENS (major engine)Generic!atr.b

File fingerprint

Last analyzed
Oct 13, 2026, 1:51 AM UTC
SHA-256
b50925b6c06909a56c0ba3daa5eb768f276e549db4647a5ff46f4dd757d07eba
SHA-1
118144df4282f3feebdc232bd80149e8df90b964
MD5
52a7da1e35f616d48d01da2aab908d73

About this file

autorun.inf is an INI file of 47 B.

Type and size
INI · 47 B
Signer
Not applicable
First seen
Oct 13, 2026On VirusTotal.
Submitted by
1 sourceRarely seen: few people have submitted this exact file.

First scanned Updated

Verdict history

  1. Safe
  2. Suspiciousafter a re-check of the saved evidence

Ratings change when antivirus engines, our checks or MalwareTips staff learn more about a file.

Chapter 04

Questions & answers

Short answers to the 6 questions people ask most about this file.

Is autorun.inf safe, or is it malware?
autorun.inf is rated Suspicious: some signs point to a problem, but nothing confirms it is harmful. 1 of the 61 antivirus engines that checked it flags it. Don't open it unless you're sure where it came from. Get a fresh copy from the original source.
What is autorun.inf?
autorun.inf is a file, about 47 bytes. VirusTotal first saw it on Oct 13, 2026.
How many antivirus engines detected autorun.inf?
1 of the 61 antivirus engines that checked it flags autorun.inf (Trellix (McAfee)). We weigh which engines flagged it and what else the scan found, not just the count.
I already downloaded and opened autorun.inf — what should I do?
No infection is confirmed: the rating is a caution, not a malware finding. 1) Check where it came from. If you can't confirm the source, delete it. 2) Run a full scan with your security software. 3) If the scan finds something, follow its removal steps and change passwords you typed on the device since then.
What is the SHA-256 hash of autorun.inf?
The SHA-256 fingerprint of autorun.inf is b50925b6c06909a56c0ba3daa5eb768f276e549db4647a5ff46f4dd757d07eba, and its MD5 is 52a7da1e35f616d48d01da2aab908d73. Two files with the same SHA-256 are identical, so use it to check you have exactly this file, not just one with the same name.
How up to date is this analysis of autorun.inf?
This report reflects the scan on Oct 13, 2026. A file's fingerprint never changes, but antivirus engines keep learning, so a rating can change later. To get a newer result, scan the file again: we refresh the antivirus results when the saved ones are out of date.
Chapter 06

Community

Member reviews and reports for this exact file hash.

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Other files people checked with the same name. A matching name does not make two files the same: only the SHA-256 fingerprint identifies a file.

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This report and its SHA-256 fingerprint are public, so the next person who checks the same file gets an instant answer; documents and images are listed by type instead of their file name. A file we had not seen before is uploaded to VirusTotal, whose security partners and subscribers can download it; MalwareTips deletes its own copy after the scan. If you ran this file and are worried, scan your device with up-to-date security software.