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Verdict Suspicious

Analyzed , 15 days ago

Is SDF-43.bat safe? Treat it as suspicious.

No engines detected this new batch script, but its PowerShell bypass, temporary C# compilation, and offensive technique mappings warrant caution pending provenance verification.

Read the whole reasonShow less

Why Suspicious? The file was first observed on Oct 11, 2026 and has only one known submission, so it has no established distribution history.

Limited evidence · One sign points to a problem; nothing else confirms it.

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

If it came from a link, an attachment or a stranger, delete it.

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 run 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 ran 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

Share this file report

SDF-43.bat: 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

0 of 60 flagged

  • Flagged 0
  • No detection 60
  • No result 15
FileSDF-43.bat11.8 kBSHA-256 b1b19c394520…e713a1
  • Code signing Not applicable
  • Test run Completed
  • First seen 15d ago
None of the 60 antivirus engines that checked it flag it.

Chapter 02

Why we think so

4 points against it and 5 in its favour, checked against the scan evidence.

MT AI Engine · Verdict analysis

The reasoning behind this verdict

Analyst conclusion

None of the 60 antivirus engines that checked it flagged the file, and the observed destinations produced no hostile reputation matches. However, this script launched PowerShell with an execution-policy bypass, compiled temporary C# code, and received mappings for injection, data destruction, and security-control impairment, so it should not be run without confirming its source and purpose.

Where this verdict could be wrong3 caveats
  • No antivirus engine detected the script, including the 17 major antivirus engines that reported a result.
  • The completed sandbox did not issue a malicious verdict, and no observed destination matched the malicious or suspicious host cache.
  • The mapping names no injection target, and the recorded injected-process list is empty.

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 · 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
  • 25sandbox rule tags
  • 14spawned processes
  • 28network contacts
  • 27filesystem & mutex artifacts

What the test run showed

What the file did on a test computer

Confirmed in the test run

  • Moderate concern: Contains packed or scrambled code that is harder to inspect (common in installers too).

  • Moderate concern: Ran commands or a script on the test computer.

  • Moderate concern: Downloaded a file during the test run.

  • Moderate concern: Checked whether it was running on a test computer.

  • Moderate concern: Hid files or windows on the test computer.

  • Note: Read the user name of the test computer.

  • Note: Listed the programs running on the test computer.

Sandbox labels we could not confirm (common in safe files too)

  • Not confirmed: A sandbox rule tagged this run as code injection, but no injected program was recorded.

  • Not confirmed: A sandbox rule tagged this run as weakening security settings; no setting change was recorded.

  • Not confirmed: A sandbox rule tagged this run as changing how Windows loads code; nothing confirms it.

This file was run on a test computer (a sandbox), not on yours. Labels we could not confirm are listed so you can see them, but they are not treated as evidence against the file.

Recorded behavior

What happened in the test

Grouped by step. The order is not a timeline.

Seen in the test runWorked out from other results

  1. Input file

    The submitted object

    1
    1. Evidence 1 of 7: FileSeen in the test run

      SDF-43.bat

      b1b19c394520bdfe1119058bc7908ff49267c36eebad8d8297e81d3ec9e713a1

      Uploaded file

  2. Processes

    What ran

    2
    1. Evidence 2 of 7: ProcessSeen in the test run

      identity_helper.exe

      "C:\Program Files (x86)\Microsoft\Edge\Application\122.0.2365.92\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=6392 --field-trial-handle=2244,i,4379653910079685356,9276958589501600008,262144 --variations-seed-version /prefetch:8

      Test run
    2. Evidence 3 of 7: ProcessSeen in the test run

      cmd.exe

      "C:\Windows\system32\cmd.exe" /c start /wait "" "C:\Users\<USER>\Desktop\SDF-43.bat"

      Test run
    3. +1 more recorded observation

  3. Files

    Created or changed

    2
    1. Evidence 4 of 7: Written fileSeen in the test run

      warning_27931.ps1

      C:\Users\<USER>\AppData\Local\Temp\warning_27931.ps1

      Test run
    2. Evidence 5 of 7: Written fileSeen in the test run

      yhf2hucf.tmp

      C:\Users\<USER>\AppData\Local\Temp\yhf2hucf.tmp

      Test run
    3. +1 more recorded observation

  4. Network

    Hosts contacted

    2
    1. Evidence 6 of 7: Contacted hostWorked out from other results

      www.googleadservices.com

      Older reputation report (safe), not counted as current evidence.

      Contacted-host cross-check
    2. Evidence 7 of 7: Contacted hostWorked out from other results

      www.gstatic.com

      Older reputation report (safe), not counted as current evidence.

      Contacted-host cross-check
    3. +1 more recorded observation

7 facts from the test run. See the full activity list.

Chapter 04

Technical details

None of the 60 antivirus engines that checked it flag it.

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.

SourceStatusResultChecked
Antivirus enginesVirusTotal · 75 enginesCompletePositive signal: 0 of 60 engines flagged it · 15 gave no result Details for antivirus engines
Sandbox runVirusTotal sandboxesCompleteRuntime behaviour was recorded Details for sandbox run
Contacted hostsMalwareTips URL scannerComplete33 contacted hosts checked Details for contacted hosts
Signature rulesYARAify community rules + MalwareTips rulesComplete1 MalwareTips behaviour rule Details for signature rules
Malware sample databaseabuse.ch MalwareBazaarCompleteNot listed
Known-software referenceCIRCL hashlookupCompleteNo match

File fingerprint

Last analyzed
Oct 11, 2026, 2:36 PM UTC
SHA-256
b1b19c394520bdfe1119058bc7908ff49267c36eebad8d8297e81d3ec9e713a1
SHA-1
6ecf41776facefa4264c9b642ea14de6df9900f5
MD5
da6f13428d57436f33f123e97e4ae39d

About this file

SDF-43.bat is a Powershell file of 11.8 kB.

Type and size
Powershell · 11.8 kB
Signer
Not applicable
First seen
Oct 11, 2026On VirusTotal.
Submitted by
1 sourceRarely seen: few people have submitted this exact file.

First scanned

Chapter 05

Questions & answers

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

Is SDF-43.bat safe, or is it malware?
SDF-43.bat is rated Suspicious: some signs point to a problem, but nothing confirms it is harmful. No antivirus engine flags it; the caution comes from other evidence, such as who made it, how widely it is used or what it did in a test run. Don't run it unless you're sure where it came from. If you need the program, download it again from the publisher's own website.
What is SDF-43.bat?
SDF-43.bat is a batch script, about 11.8 kB. VirusTotal first saw it on Oct 11, 2026.
How many antivirus engines detected SDF-43.bat?
None of the 60 antivirus engines that checked it flag SDF-43.bat. A clean antivirus result is not proof of safety; the caution comes from other evidence, such as who made it, how widely it is used or what it did in a test run.
I already downloaded and ran SDF-43.bat — 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 SDF-43.bat?
The SHA-256 fingerprint of SDF-43.bat is b1b19c394520bdfe1119058bc7908ff49267c36eebad8d8297e81d3ec9e713a1, and its MD5 is da6f13428d57436f33f123e97e4ae39d. 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 SDF-43.bat?
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.

Related file reports

Recent reports on other files with the same rating.

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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.