File scan report
Verdict Safe
Is Save4k-
Save4k installer with no detections from any of 75 antivirus engines, a valid code signature and a clean sandbox run showing ordinary app installation.
Read the whole reasonShow less
Strong evidence · A verified publisher signature, and no engine flags it.
This installer can be used if it came from Save4k's official download page. Decline any extra offers during setup and keep your security software enabled.
Good practice2 tips
We found nothing harmful in this file.
Install it only if it came from the developer's own website or an official app store.
Keep your antivirus and Windows updates switched on.
No scanner can promise a file is 100% safe.
Antivirus results
0 of 68 flagged
- Flagged 0
- No detection 68
- No result 7
- Code signing Bui Xuan Mai
- Test run Completed
- First seen 19d ago
Chapter 02
Why we think so
3 points against it and 4 in its favour, checked against the scan evidence.
The reasoning behind this verdict
None of the 68 antivirus engines that checked it flagged this Save4k setup file, and its code signature verifies. In the sandbox it installed a desktop app into the user's profile, added a startup entry and registered a link handler. These are normal installer actions, and no injection target or harmful activity was recorded.
None of the 68 antivirus engines that checked it flagged the file, including all 17 major antivirus engines that returned results. The installer carries a valid signature from an individual developer, though we hold no prior history for that signer. The single sandbox run returned clean and shows a standard Inno Setup install of a Flutter-based app, a per-user startup entry and a custom URL protocol registration. Technique mappings such as credential access or injection appeared without any injected process or target, which is typical noise for installers. Similar-looking files in our records share only the installer framework, not the publisher, so they say little about this file.
What We Detected
None of the 68 antivirus engines that checked it flagged this file. It is signed with a valid certificate issued to Bui Xuan Mai, a signer without an established history in our records. Around 134 different sources submitted it in its first 10 days.
Threat Behavior
The sandbox run returned clean. The setup extracted its Inno Setup helper, installed Save4k with Flutter plugin DLLs under the user's local Programs folder, added a startup entry in the current user's Run key and registered a save4k link protocol. Only the analysis machine's own background traffic was observed on the network.
What To Do Now
If you downloaded this from Save4k's official source, it appears fine to install. During setup, watch for any bundled third-party offers. You can disable the startup entry in Task Manager if you do not want the app launching automatically. Keep your antivirus enabled.
Where this verdict could be wrong2 caveats
- The installer shares its build fingerprint with two bundleware installers we previously linked to OfferCore. That match comes from a shared installer framework, not the same publisher, but it is a reason to watch for bundled offers during setup.
- The signer is an individual name with no prior history in our records. A clean scan today does not establish a long-term reputation.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- None of the 68 antivirus engines that checked it flagged the file
- Valid code signature
- The sandbox run returned clean, showing a normal per-user application install
- Widely submitted by many independent sources
- The signer is an individual developer with no prior history in our records
- The app adds itself to Windows startup for the current user
- The installer framework matches some bundleware installers seen previously
6 sources checked · all complete. See every source
Chapter 03
What it did in our test
It ran in our isolated test environment; no test environment rated what it did as risky.
Test run summary
Capture complete- 29sandbox rule tags
- 6spawned processes
- 0network contacts
- 35filesystem & mutex artifacts
Includes the sandbox verdicts, 29 mapped techniques, every process, file, registry and network entry and 10 dropped files.
Show the technical evidenceChapter 04
Technical details
None of the 68 antivirus engines that checked it flag it; signed by Bui Xuan Mai.
Sources checked
Every check behind this verdict
6 sources checked · all complete. Complete means the check returned a usable result; it does not mean the file is safe.
File fingerprint
- Last analyzed
- Oct 16, 2026, 7:31 PM UTC
- SHA-256
59673570e86ebba898b46da416b6d62aa18f59e63c8fe8b2386b4d3d088d3aa6- SHA-1
68b3211f500ca331015f44e4eec15cb5537ee623- MD5
caba1a80569210d873ebdfa6ed67f177
About this file
Save4k-1.0.10-windows-x64-setup.exe is a Win32 EXE file of 41.5 MB.
- Type and size
- Win32 EXE · 41.5 MB
- Signer
- Bui Xuan MaiValid code signature.
- First seen
- Oct 6, 2026On VirusTotal.
- Submitted by
- 134 distinct sources
- Packer
- None detected
- Entropy
- 6.36 of 8
First scanned Updated
Includes every engine result (75), 3 matched signature rules, PE section entropy and packers and how widely the file has been seen.
Show the technical evidenceChapter 05
Questions & answers
Short answers to the 7 questions people ask most about this file.
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Community
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