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Verdict Safe

Analyzed , 15 days ago

Is a.out safe? Yes, no threats found.

A lone generic Huorong rule-based detection lacks major, family, runtime, or external-intelligence corroboration, making a false positive considerably more likely.

Read the whole reasonShow less

Moderate evidence · No engine flags it, but no publisher signature confirms who made it.

Open or extract it as usual if it came from the official source

Keep security protection enabled and use the file only if it came from a source you trust. For uncertain origins, verify the publisher or test it in an isolated macOS environment first.

Good practice2 tips

We found nothing harmful in this file.

  1. Open it only if you trust the person or website you got it from.

  2. Keep your security software and system updates switched on.

No scanner can promise a file is 100% safe.

Why we think so

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a.out: Safe — 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 64 flagged

  • Flagged 1
  • No detection 63
  • No result 11
Filea.out8.1 MBSHA-256 7acd4d8d1408…9fc5fd
  • Code signing Not applicable
  • Test run Not run
  • First seen 1mo ago
No sandbox test run results are available for this file.

Chapter 02

Why we think so

3 points against it and 4 in its favour, checked against the scan evidence.

MT AI Engine · Verdict analysis

The reasoning behind this verdict

Analyst conclusion

Only 1 of the 64 antivirus engines that checked it flagged this macOS-containing ZIP, using a generic rule-based label, while no major antivirus engines detected it. No sandbox execution or complete host-reputation check is available, so the isolated alert is probably a false positive but cannot be validated through evidence from the test run.

Where this verdict could be wrong2 caveats
  • Huorong identified a possible macOS trojan using the label HEUR:Trojan/OSX.Agent.a.
  • No completed sandbox run or comprehensive contacted-host reputation check is available, so runtime intent remains 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.

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

Chapter 03

Technical details

1 of the 64 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 enginesCompleteWorth noting: 1 of 64 engines flagged it · 11 gave no result · treated as non-decisive 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

The saved verdict treats these detections as likely false positives.

  • huorongHEUR:Trojan/OSX.Agent.a

File fingerprint

Last analyzed
Oct 11, 2026, 7:08 PM UTC
SHA-256
7acd4d8d1408ec2100de7de2a2c19103874e127f9e995bcb46fa06dc809fc5fd
SHA-1
c424f380131550e7665b9eab1c1caab1ca73fa77
MD5
e380a637fb85d8afb85b2ab695bacc1e

About this file

a.out is a ZIP file of 8.1 MB.

Type and size
ZIP · 8.1 MB
Signer
Not applicable
First seen
Aug 28, 2026On VirusTotal.
Submitted by
13 distinct sources

First scanned

Chapter 04

Questions & answers

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

Is a.out safe?
We found nothing harmful in a.out. 1 of the 64 antivirus engines that checked it flags it; after weighing the other evidence we treat that alert as false alarms. Open it only if you trust the person or website you got it from.
What is a.out?
a.out is a ZIP archive, about 8.1 MB. VirusTotal first saw it on Aug 28, 2026.
How many antivirus engines detected a.out?
1 of the 64 antivirus engines that checked it flags a.out (Huorong). We weigh which engines flagged it and what else the scan found, not just the count.
What is the SHA-256 hash of a.out?
The SHA-256 fingerprint of a.out is 7acd4d8d1408ec2100de7de2a2c19103874e127f9e995bcb46fa06dc809fc5fd, and its MD5 is e380a637fb85d8afb85b2ab695bacc1e. 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.
Is it safe to open or extract a.out?
We found nothing harmful in a.out. The main caveat is where you got it: attackers sometimes spread malware under the name of real software, so get it from the official website. If your own antivirus warns about it, check the source before you ignore the warning.
How up to date is this analysis of a.out?
This report reflects the scan on Oct 11, 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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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.