MalwareTips
Threat LensFile scan report

Is compiler.exe safe?

Verdict
Malicious

Twenty of 75 engines flagged this unsigned executable, while offensive runtime techniques and five researcher YARA matches independently reinforce generic-trojan concerns.

The unsigned executable drew detections from 20 of 75 engines, including six high-trust detections, although no single named family achieved strong consensus. Runtime evidence mapped activity to process injection, token manipulation, and startup persistence, while five researcher YARA rules supplied further corroboration.

Do not run this file

Quarantine the file and avoid executing it; if it already ran, perform a full endpoint scan and investigate startup locations, process injection, token abuse, and outbound connections while keeping protection enabled.

Read the full analysis
Saved file evidenceAntivirus consensus
20of 75 flagged
Flagged 20No detection 55
Digital specimencompiler.exe7ad4b911d05a12f91a…e2b94f8cd018c9
Size31.2 KB
Code signingUnsigned
SandboxRuntime complete
First seen5mo ago
Evidence3 priority signals
6 high-confidence signature or behavior rules matched this file.

Recommended next actions

01

Before running

Do not run it. Delete this file from the device, then empty the Recycle Bin or Trash.

02

If you already ran it

Disconnect from the internet, start a full or offline antivirus scan, then secure important accounts from a clean device.

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.

90%Confidence
Very high
Analyst conclusion

The unsigned executable drew detections from 20 of 75 engines, including six high-trust detections, although no single named family achieved strong consensus. Runtime evidence mapped activity to process injection, token manipulation, and startup persistence, while five researcher YARA rules supplied further corroboration.

Where this verdict could be wrong4 caveats
  • engines.tier1ReportedClean=9, including BitDefender, ESET-NOD32, Fortinet, and GData, so high-trust engines do not unanimously agree.
  • behaviour.hasMaliciousSandboxVerdict=false, and no dropped file hashes or saved persistence indicators were recorded in the single sandbox run.
  • Three communityComments describe the hash as clean or no-threat, but they have zero votes and are weaker than the independent engine, runtime, and YARA evidence.
  • peAnalysis.likelyPacked=false and peAnalysis.highEntropyCode=false, providing no static packing indicator.

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

Quarantine the file and avoid executing it; if it already ran, perform a full endpoint scan and investigate startup locations, process injection, token abuse, and outbound connections while keeping protection enabled.

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

    20 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

    7 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
  • 2spawned processes
  • 1network contacts
  • 1filesystem & 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: Changed an auto-start location that can make code run after sign-in or restart.

  • 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.

  • Moderate concern: Checked the environment for virtualisation or analysis tools.

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.

Threat context

How trojans work

A trojan disguises itself as something useful or harmless to trick you into running it. Once open, it does its real job in the background — anything from stealing data to opening a back door or downloading more malware.

Bottom line:The disguise is the whole trick, so a trustworthy-looking name or icon means nothing.

Recorded behavior

Attack story

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

ObservedDerived

5 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

This file is dangerous. Treat it as harmful and remove it.

  1. Recovery step 01

    Don't run this file. Delete this file from the device, then empty the Recycle Bin or Trash.

  2. Recovery step 02

    If you already ran it, disconnect from the internet and start with a full antivirus scan or Microsoft Defender Offline scan. If compromise is suspected or the problem persists, use a reputable second-opinion scanner and follow incident-recovery or clean-reinstall guidance.

  3. Recovery step 03

    From a different, clean device, change the passwords on your important accounts (email and banking first) and turn on two-factor authentication.

  4. Recovery step 04

    Get a fresh copy from the developer's official site or an official app store.

Safety FAQ

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

8 evidence-based answers
Is compiler.exe a virus?
Evidence-based answer
Yes — compiler.exe is malicious. Do not run it. Delete this file from the device, then empty the Recycle Bin or Trash. 20 of 75 antivirus engines flag it. It behaves as a trojan — malware disguised as something harmless to trick you into running it. If you've already run it, see the removal and recovery steps below.
What is compiler.exe?
Evidence-based answer
compiler.exe is a Windows executable program, about 31 KB. Our analysis identifies it as malicious — a trojan — malware disguised as something harmless to trick you into running it. Because a file's name and icon can be faked, the safest way to identify it is by its cryptographic hash (below), not its filename.
How many antivirus engines detected compiler.exe?
Evidence-based answer
20 of 75 antivirus engines flagged compiler.exe, 20 of them as outright malicious. The raw count alone does not establish safety or danger; we also weigh which engines flagged it and corroborating behavior, identity, reputation, and rule evidence. The malicious verdict comes from the complete saved evidence, not from this antivirus count by itself.
What should I do if I already ran compiler.exe?
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 compiler.exe?
Evidence-based answer
To remove compiler.exe: 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 kind of malware is compiler.exe?
Evidence-based answer
compiler.exe is classified as a trojan — malware disguised as something harmless to trick you into running it. Knowing the family matters because it tells you the likely impact — data theft, remote control, file encryption, or unwanted ads — and guides the cleanup.
What is the SHA-256 hash of compiler.exe?
Evidence-based answer
The SHA-256 hash of compiler.exe is 7ad4b911d05a12f91ab27ba3baa351a56653ca099dda7ad87ee2b94f8cd018c9, and its MD5 is c2a7f19ba96dc460d591d37d664fe6aa. 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 compiler.exe?
Evidence-based answer
This report reflects the scan run on September 14, 2026. Because a file's hash never changes, the identity of compiler.exe 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.