Is Terraria.exe safe?
Widely submitted 14-year-old Terraria game executable with zero engine detections.
Zero of 74 engines flagged the file. The sample matches the well-known Terraria game, has been submitted by 397 sources since 2012, and shows no malicious sandbox behaviour.
a803086e90166a64cc…75ca52d8bd257dRecommended next actions
Before running
Run it only when it came from the developer's official site or another source you independently trust.
If you already ran it
Keep normal device protection enabled and stop if the file behaves unexpectedly.
Intelligence
The saved assessment, checked against the scan evidence and recorded coverage.
The reasoning behind this verdict
This section explains the evidence supporting the verdict and keeps conflicting or missing signals visible.
Zero of 74 engines flagged the file. The sample matches the well-known Terraria game, has been submitted by 397 sources since 2012, and shows no malicious sandbox behaviour.
The complete absence of detections across 74 engines, combined with the file's age and prevalence, strongly indicates a legitimate game binary. Community annotations confirm the file is Terraria version 1.0.4. While the executable is unsigned and one heuristic noted direct-no complete contacted-host reputation result was available engine results and long submission history. The mixed RAG verdicts reflect framework collisions rather than actual similarity to the current sample.
What We Detected
74 engines scanned the file with zero malicious detections. The sample is an unsigned Win32 executable named Terraria.exe, first submitted in 2012 and seen by 397 sources.
Threat Behavior
One sandbox execution recorded direct-IP connections and several ambient system interactions, but no malicious verdict was returned. Two dropped files were inspected and found clean. No persistence mechanisms or registry modifications were observed.
What To Do Now
The file can be considered safe for execution. Keep endpoint protection enabled as a general precaution when running any downloaded executable.
Where this verdict could be wrong3 caveats
- signing.signed=false — unsigned executable reduces trust for a 14-year-old file
- similarHashes shows 4/5 prior imphash matches returned suspicious or malicious verdicts
- triggeredHeuristics[0] fired on direct-IP traffic pattern
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- Zero detections across 74 engines
- Common_old prevalence with 480 submissions
- Community annotations identify it as Terraria game
- No malicious sandbox verdict or dropped malicious children
- File is unsigned
- Direct-IP network traffic observed in sandbox
The evidence supports treating the file as safe. Continue running current endpoint protection without changes.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete0 of 74 engines flagged the file.
Sandbox
Complete1 isolated runtime environment contributed observations.
Network
Partial10 runtime contacts were observed without a completed reputation cross-check.
YARA
Complete1 signature or behavior rule matched.
External intel
Complete3 of 3 independent reference sources completed.
Behavior
Plain-English impact first, then the observed runtime evidence.
Runtime flight recorder
Capture complete- 1isolated sandbox run
- 13MITRE ATT&CK techniques
- 5spawned processes
- 10network contacts
- 27filesystem & mutex artifacts
Attack story
Runtime observations grouped by analysis stage. Arrows organize the stages; they do not claim chronology or causality.
Input file
The submitted object
- FileObserved
Terraria.exe
a803086e90166a64cc978be7bf9e44c7022feff2410222973f75ca52d8bd257d
01Uploaded file
Processes
Runtime execution
- ProcessObserved
Observed process
%SAMPLEPATH%\a803086e90166a64cc978be7bf9e44c7022feff2410222973f75ca52d8bd257d.exe
02Isolated runtime analysis - ProcessObserved
Observed process
C:\Windows\SysWOW64\WerFault.exe
03Isolated runtime analysis - +1 more recorded observation in Analyst mode
Files
Created or changed
- Written fileObserved
udhisapi.dll
C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\UPnP Device Host\upnphost\udhisapi.dll
04Isolated runtime analysis - Written fileObserved
Microsoft-Windows-DiskDiagnosticDataCollector
C:\Windows\System32\Tasks\Microsoft\Windows\DiskDiagnostic\Microsoft-Windows-DiskDiagnosticDataCollector
05Isolated runtime analysis - +1 more recorded observation in Analyst mode
Network
Hosts contacted
- Contacted hostObserved
23.216.147.78
Contact observed during runtime.
06Isolated runtime analysis - Contacted hostObserved
20.99.184.37
Contact observed during runtime.
07Isolated runtime analysis - +1 more recorded observation in Analyst mode
7 recorded facts from one runtime window. Every fact remains independently traceable in Analyst mode.
What this file did when executed
This file was detonated in 1 sandbox and its runtime behaviour was observed.
Adversary techniques mapped to the MITRE ATT&CK framework.
- 23.216.147.78
- 20.99.184.37
- 192.229.211.108
- 23.196.145.221
- 23.34.172.65
- 104.98.118.160
- 23.101.168.44
- 192.168.0.6
- 23.216.147.75
- 23.55.140.42
- C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\UPnP Device Host\upnphost\udhisapi.dll
- C:\Windows\System32\Tasks\Microsoft\Windows\DiskDiagnostic\Microsoft-Windows-DiskDiagnosticDataCollector
- C:\ProgramData\Microsoft\Windows\WER\Temp\WERBD53.tmp
- C:\ProgramData\Microsoft\Windows\WER\Temp\WERBD53.tmp.dmp
- C:\ProgramData\Microsoft\Windows\WER\Temp\WERBF19.tmp
- C:\ProgramData\Microsoft\Windows\WER\Temp\WERECD1.tmp.dmp
- C:\ProgramData\Microsoft\Windows\WER\Temp\WERED9D.tmp.WERInternalMetadata.xml
- C:\ProgramData\Microsoft\Windows\WER\Temp\WERD2A.tmp.WERInternalMetadata.xml
- C:\ProgramData\Microsoft\Windows\WER\Temp\WERD6A.tmp.csv
- C:\ProgramData\Microsoft\Windows\WER\Temp\WERD7B.tmp.txt
- \Sessions\1\BaseNamedObjects\Local\WERReportingForProcess5732
- \Sessions\1\BaseNamedObjects\Global\AmiProviderMutex_InventoryApplicationFile
- \Sessions\1\BaseNamedObjects\Global\f0a72f7f-41af-4a8a-a59e-feff6271ad7d
Files this sample writes at runtime
This file drops 2 children at runtime. None are currently flagged malicious in our cache.
- 026a5c3dd0e7a447cab6…5281b9Never scannednever seen before
- eaced9e2b35a42997bf5…324de6Never scannednever seen before
Detection & Forensics
Consensus, attribution, signatures, code structure, prevalence, and identity.
Evidence integrity
Chain of custody for the facts preserved in this report.
- 1rule hit recorded
- 0 / 74engines flagged
- 397sources in submission history
Why these facts are shown
Each statement identifies whether it was directly recorded or derived from saved scan facts.
- 01
0 of 74 antivirus engines flagged the file.
Verdict inputView chapterProvenanceObservedSourceAntivirus analysisObserved at - 02
The hash has a long, established submission history across 397 sources.
Verdict inputView chapterProvenanceDerivedSourceSubmission historyObserved at - 03
The hash has been submitted 480 times from 397 sources.
ProvenanceDerivedSourceSaved report factsObserved at - 04
Scanned file: Terraria.exe — a803086e90166a64cc978be7bf9e44c7022feff2410222973f75ca52d8bd257d
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — %SAMPLEPATH%\a803086e90166a64cc978be7bf9e44c7022feff2410222973f75ca52d8bd257d.exe
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
Observed process — C:\Windows\SysWOW64\WerFault.exe
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: udhisapi.dll — C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\UPnP Device Host\upnphost\udhisapi.dll
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
File written: Microsoft-Windows-DiskDiagnosticDataCollector — C:\Windows\System32\Tasks\Microsoft\Windows\DiskDiagnostic\Microsoft-Windows-DiskDiagnosticDataCollector
ProvenanceObservedSourceIsolated runtime analysisObserved at - 09
Contacted host: 23.216.147.78 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at - 10
Contacted host: 20.99.184.37 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at
Detection sources at a glance
The available sources did not agree on a named threat category.
MalwareBazaar, YARAify, and CIRCL hashlookup completed and returned no entries for this hash.
Signatures and behavior heuristics
Behavioral heuristics matched patterns associated with malware. Corroborating evidence determines how much weight they carry.
The sample contacted an external IP address directly and no application domain was recorded. Direct-IP traffic also occurs in legitimate installers and infrastructure, so this is supporting context only and requires corroboration from host reputation and other runtime evidence.
Evidence23.216.147.78 · 20.99.184.37 · 192.229.211.108
0 of 74 engines flagged this file
View all 74 engine results
Section entropy & packers
No high-entropy executable section or known packer signature was detected. Data and resource sections can still have high entropy without indicating packed code.
How widely this file has been seen
Widely seen in the wild for a long time. High prior this is legitimate; isolated detections on common-old files are usually false positives.
Fingerprint and provenance
- File name
- Terraria.exe
- Format
- Win32 EXE
- Code signing
- No verified publisher
- Size
- 1.8 MB
- Last analyzed
- Sep 6, 2026, 6:49 AM UTC
a803086e90166a64cc978be7bf9e44c7022feff2410222973f75ca52d8bd257dSafety & FAQ
Complete recovery guidance and answers for the next decision.
What to do now
This file appears low risk based on the evidence available now.
- Recovery step 01
Run it only when it came from the developer's official site or another source you independently trust.
- Recovery step 02
A clean result reduces known risk, but it cannot guarantee that every new or targeted threat has been detected.
- Recovery step 03
Keep your antivirus and Windows updates switched on so you stay protected.
Safety FAQ
Direct answers grounded in the saved verdict and evidence in this report.
Is Terraria.exe safe?
What is Terraria.exe?
How many antivirus engines detected Terraria.exe?
What is the SHA-256 hash of Terraria.exe?
Is it safe to run Terraria.exe?
How up to date is this analysis of Terraria.exe?
Community
Member reviews and reports for this exact file hash.