MalwareTips
Threat LensFile scan report

Is Fallout 4 Engine Extender safe?

Verdict
Suspicious

Unsigned Fallout 4 mod DLL shows process-injection behavior yet zero AV detections.

Seventy-five engines report the file clean, but the sandbox captured T1055 process injection and direct-IP traffic. Medium prevalence and unsigned status leave the intent ambiguous.

Do not open it until verified

Treat as untrusted until the mod author provides a code-signed build or independent verification from the Fallout 4 modding community.

Read the full analysis
Saved file evidenceAntivirus consensus
0of 75 flagged
Flagged 0No detection 75
Digital specimenFallout 4 Engine Extender5d4058926ae8bd4414…1c52577e8d88c7
Size1.1 MB
Code signingUnsigned
SandboxRuntime complete
First seen2d ago
Evidence3 priority signals
1 high-confidence signature or behavior rule matched this file.

Recommended next actions

01

Before opening

Do not open it until the source can be verified independently.

02

If you already opened it

Stop using it, scan the device, and watch for unexpected behavior or security alerts. Get a fresh copy from the original trusted source and verify its exact hash when possible.

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.

65%Confidence
High
Analyst conclusion

Seventy-five engines report the file clean, but the sandbox captured T1055 process injection and direct-IP traffic. Medium prevalence and unsigned status leave the intent ambiguous.

Where this verdict could be wrong1 caveat
  • Sandbox observed T1055 process injection and direct-IP contact, but no malicious sandbox verdict or known-bad host correlation.

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

Treat as untrusted until the mod author provides a code-signed build or independent verification from the Fallout 4 modding community.

Scan transparency

Coverage & freshness

4 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

    Complete

    1 isolated runtime environment contributed observations.

  • Network

    Partial

    1 runtime contact was observed without a completed reputation cross-check.

  • YARA

    Complete

    2 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.

Runtime flight recorder

Capture complete
  • 1isolated sandbox run
  • 19MITRE ATT&CK techniques
  • 15spawned processes
  • 1network contacts
  • 25filesystem & mutex artifacts

What this file does

Observed actions and their security significance

  • High concern: Injected code into another process, a technique that can conceal execution.

  • High concern: Used an input-capture technique that can record credentials or keystrokes.

  • High concern: Attempted to impair or bypass security controls.

  • High concern: Manipulated how the operating system loads code, which can redirect execution.

  • Moderate concern: Contained obfuscated or packed code that makes inspection harder.

  • Moderate concern: Communicated over a common application protocol; malware can use this for command-and-control.

  • Moderate concern: Scans through your files and folders.

These are observed capabilities from an isolated analysis. A technique does not prove malicious intent on its own, and the file never ran on your device.

Recorded behavior

Attack story

Runtime observations grouped by analysis stage. Arrows organize the stages; they do not claim chronology or causality.

ObservedDerived

6 recorded facts from one runtime window. Every fact remains independently traceable in Analyst mode.

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

We couldn't fully clear this file. Treat it with caution.

  1. Recovery step 01

    Don't open it unless you're certain it came from a source you trust.

  2. Recovery step 02

    Check where you got it — an unexpected attachment or a random download link is a red flag.

  3. Recovery step 03

    If its origin cannot be confirmed, delete this file and use a fresh copy from a trusted source. Get a fresh copy from the original trusted source and verify its exact hash when possible.

  4. Recovery step 04

    If you're still unsure, scan it again in a day or two — detections often catch up on newer files.

Safety FAQ

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

7 evidence-based answers
Is Fallout 4 Engine Extender safe, or is it malware?
Evidence-based answer
Fallout 4 Engine Extender is suspicious — treat it as unsafe until you're sure. No antivirus engine flagged it; the cautious verdict comes from other saved evidence such as identity, prevalence, signing, or runtime signals. Don't open it unless you fully trust where it came from. Get a fresh copy from the original trusted source and verify its exact hash when possible.
What is Fallout 4 Engine Extender?
Evidence-based answer
Fallout 4 Engine Extender is a file, about 1.1 MB. We identify a file by its cryptographic hash rather than its name, because the same filename can be reused by completely different files — the hash below is the reliable fingerprint.
How many antivirus engines detected Fallout 4 Engine Extender?
Evidence-based answer
None — 0 of 75 antivirus engines flagged Fallout 4 Engine Extender. That's reassuring, though it is not proof that a file is safe, so we also weigh its behaviour, identity, and reputation.
I already downloaded and opened Fallout 4 Engine Extender — what should I do?
Evidence-based answer
Act quickly. 1) Disconnect the device from the internet to stop the malware communicating or spreading. 2) Run a full scan with reputable anti-malware software (such as Malwarebytes) and quarantine everything it finds. 3) Change your important passwords from a DIFFERENT, clean device — many threats log keystrokes or steal saved credentials. 4) If you bank or shop on this device, watch closely for fraud and alert your bank. 5) For a confirmed infection, the most reliable fix is to back up your personal files and reinstall the operating system for a clean start.
How do I remove Fallout 4 Engine Extender?
Evidence-based answer
To remove Fallout 4 Engine Extender: 1) restart into Safe Mode (Safe Mode with Networking if you need to download a tool) so the malware doesn't auto-start. 2) Run a full scan with reputable anti-malware software and let it quarantine or delete the detections. 3) Delete this file from the device, then empty the Recycle Bin or Trash. 4) Check your browser extensions, startup items, and scheduled tasks for anything unfamiliar. 5) Reboot and scan again to confirm it's gone. If detections keep coming back, a clean operating-system reinstall is the most dependable cure.
What is the SHA-256 hash of Fallout 4 Engine Extender?
Evidence-based answer
The SHA-256 hash of Fallout 4 Engine Extender is 5d4058926ae8bd44140ffd814e0bcd5be16d0b0799f7d7420a1c52577e8d88c7, and its MD5 is e074add77af507639a069dc9159421cd. 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.
How up to date is this analysis of Fallout 4 Engine Extender?
Evidence-based answer
This report reflects the scan run on August 27, 2026. Because a file's hash never changes, the identity of Fallout 4 Engine Extender 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.