File scan report
Verdict Safe
Is optimizer Duck. dll safe? Yes, no threats found.
Unsigned 104 MB .NET executable with zero detections across 75 engines and clean sandbox behaviour.
Moderate evidence · No engine flags it, but no publisher signature confirms who made it.
The evidence supports treating the file as safe; continue normal use while keeping security software active.
Good practice2 tips
We found nothing harmful in this file.
Run 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.
Reads the latest antivirus results for this file's hash. Nothing is uploaded.
Antivirus results
0 of 70 flagged
- Flagged 0
- No detection 70
- No result 5
- Code signing Unsigned
- Test run Completed
- First seen 1mo ago
Chapter 02
Why we think so
0 points against it and 3 in its favour, checked against the scan evidence.
The reasoning behind this verdict
No engine flagged the file. One sandbox observed only routine .NET activity in the test run and wrote ten resource DLLs, none of which triggered malicious verdicts. Medium prevalence and recent first-seen date are consistent with a legitimate utility.
Zero malicious detections from 75 engines, including 17 major antivirus engines that returned clean, provide strong consensus that the file is not malware. The unsigned status is expected for a .NET application and does not contradict the clean engine results. Sandbox execution produced only routine file writes and no offensive MITRE techniques or external contacts. Ten files it created were inspected and none carried malicious verdicts. Medium prevalence across 69 sources further supports a benign classification.
What We Detected
75 engines scanned the 104 MB Win32 EXE; none returned a malicious or suspicious result. The file is unsigned and contains no packer signatures, though overall entropy is high. Sandbox execution wrote ten localized resource DLLs and a runtime configuration file, all classified unknown.
Threat Behavior
No offensive MITRE techniques were observed. The single sandbox run recorded only routine .NET startup activity and no network communication or persistence mechanisms.
What To Do Now
The file can be executed with standard precautions. Keep security software enabled and monitor for any unexpected behaviour.
- Zero detections across 75 engines
- Clean sandbox verdict
- No malicious files it created
6 sources checked · 5 complete · 1 not needed or not applicable. 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- 1sandbox rule tag
- 1spawned processes
- 0network contacts
- 15filesystem & mutex artifacts
What this file did when executed
This file was run in a sandbox and its runtime behaviour was observed.
Techniques observed in the sandbox
1MITRE ATT&CK techniques the sandbox mapped. Highlighted ones are rare in normal software; the others are common in legitimate programs too.
- T1070.006· Covers its tracks
Observed activity
Processes started
1Programs the file ran, with their command lines.
optimizerDuck-Windows-x64-2.27.6.exe"C:\Users\user\Desktop\optimizerDuck-Windows-x64-2.27.6.exe"
Files
15Files the file created, changed or deleted.
- Written
C:\Users\<USER>\AppData\Local\Temp\.net\optimizerDuck-Windows-x64-2.27.6\824\optimizerDuck.runtimeconfig.json - Written
C:\Users\<USER>\AppData\Local\Temp\.net\optimizerDuck-Windows-x64-2.27.6\824\ar-SA\optimizerDuck.resources.dll - Written
C:\Users\<USER>\AppData\Local\Temp\.net\optimizerDuck-Windows-x64-2.27.6\824\de-DE\optimizerDuck.resources.dll - Written
C:\Users\<USER>\AppData\Local\Temp\.net\optimizerDuck-Windows-x64-2.27.6\824\es-ES\optimizerDuck.resources.dll - Written
C:\Users\<USER>\AppData\Local\Temp\.net\optimizerDuck-Windows-x64-2.27.6\824\fr-FR\optimizerDuck.resources.dll - Written
C:\Users\<USER>\AppData\Local\Temp\.net\optimizerDuck-Windows-x64-2.27.6\824\he-IL\optimizerDuck.resources.dll
Show all 15 entries for files
- Written
C:\Users\<USER>\AppData\Local\Temp\.net\optimizerDuck-Windows-x64-2.27.6\824\id-ID\optimizerDuck.resources.dll - Written
C:\Users\<USER>\AppData\Local\Temp\.net\optimizerDuck-Windows-x64-2.27.6\824\it-IT\optimizerDuck.resources.dll - Written
C:\Users\<USER>\AppData\Local\Temp\.net\optimizerDuck-Windows-x64-2.27.6\824\ja-JP\optimizerDuck.resources.dll - Written
C:\Users\<USER>\AppData\Local\Temp\.net\optimizerDuck-Windows-x64-2.27.6\824\ko-KR\optimizerDuck.resources.dll - Written
C:\Users\<USER>\AppData\Local\Temp\.net\optimizerDuck-Windows-x64-2.27.6\824\pl-PL\optimizerDuck.resources.dll - Written
C:\Users\<USER>\AppData\Local\Temp\.net\optimizerDuck-Windows-x64-2.27.6\824\pt-BR\optimizerDuck.resources.dll - Written
C:\Users\<USER>\AppData\Local\Temp\.net\optimizerDuck-Windows-x64-2.27.6\824\ru-RU\optimizerDuck.resources.dll - Written
C:\Users\<USER>\AppData\Local\Temp\.net\optimizerDuck-Windows-x64-2.27.6\824\tr-TR\optimizerDuck.resources.dll - Written
C:\Users\<USER>\AppData\Local\Temp\.net\optimizerDuck-Windows-x64-2.27.6\824\vi-VN\optimizerDuck.resources.dll
Files this sample writes at runtime
This file drops 10 children at runtime. None are currently flagged malicious in our cache. 10 have no saved verdict and were not checked; that is missing coverage, not a finding.
- 55d80aaa0d70a9db8e66…498b96Not checkedno saved verdict
- 4585e233c15ff39f2729…9a00faNot checkedno saved verdict
- e27c0c14704f2925b4e8…3d3c3aNot checkedno saved verdict
- 0765c72a4d8ebc161122…26d47fNot checkedno saved verdict
- fa9124bc1950d3477ad8…db7641Not checkedno saved verdict
- 8e0f8c46f2ecb00e2597…a0e82bNot checkedno saved verdict
- c341368e5af301965017…7e8db7Not checkedno saved verdict
- 054ce5176adbbea5f90d…837dd3Not checkedno saved verdict
- d392184b3357469f8180…229ad9Not checkedno saved verdict
- 5f724d51ddec2ffc2812…a01a8cNot checkedno saved verdict
Chapter 04
Technical details
None of the 70 antivirus engines that checked it flag it; no publisher signature.
Sources checked
Every check behind this verdict
6 sources checked · 5 complete · 1 not needed or not applicable. Complete means the check returned a usable result; it does not mean the file is safe.
File fingerprint
- Last analyzed
- Aug 30, 2026, 9:22 PM UTC
- SHA-256
03501b27a90c136e2bb0a7aa0c80a82720d1852b3cf03936a5a47749754fa436- SHA-1
a72ca0427950e9b7e15eac26aaa2c57a74efd31e- MD5
862bcbea86e936ac70f95d38b8321462
About this file
optimizerDuck.dll is a Win32 EXE file of 104.2 MB.
- Type and size
- Win32 EXE · 104.2 MB
- Signer
- UnsignedNo code signature.
- First seen
- Aug 28, 2026On VirusTotal.
- Submitted by
- 69 distinct sources
- Packer
- None detected
- Entropy
- 7.99 of 8
First scanned
Antivirus consensus
0 of 70 engines flagged this file
5 of the 75 engines returned no result for this file (file type not supported, or the scan did not finish), so they did not check it.
- Tier-118 engines0flagged
- Tier-235 engines0flagged
- Low-trust17 engines0flagged
View all 75 engine results
- AcronisClean
- AhnLab-V3Clean
- AlibabaClean
- alibabacloudClean
- ALYacClean
- Antiy-AVLClean
- APEXClean
- ArcabitClean
- AvastClean
- Avast-MobileNo result
- AVGClean
- AviraClean
- BitDefenderClean
- BitDefenderFalxNo result
- BkavClean
- CAT-QuickHealClean
- ClamAVClean
- CMCClean
- CrowdStrikeClean
- CTXClean
- CylanceClean
- CynetClean
- DeepInstinctClean
- DrWebClean
- ElasticNo result
- EmsisoftClean
- ESET-NOD32Clean
- F-SecureClean
- FortinetClean
- GDataClean
- GoogleClean
- GridinsoftClean
- huorongClean
- IkarusClean
- JiangminClean
- K7AntiVirusClean
- K7GWClean
- KasperskyClean
- KingsoftClean
- LionicClean
- MalwarebytesClean
- MaxSecureClean
- McAfeeDClean
- MicrosoftClean
- MicroWorld-eScanClean
- NANO-AntivirusClean
- PaloaltoClean
- PandaClean
- RisingClean
- SangforClean
- SentinelOneClean
- SkyhighClean
- SophosClean
- SUPERAntiSpywareClean
- SymantecClean
- SymantecMobileInsightNo result
- TACHYONClean
- tehtrisClean
- TencentClean
- TrapmineClean
- TrellixENSClean
- TrendMicroClean
- TrendMicro-HouseCallClean
- TrustlookNo result
- VaristClean
- VBA32Clean
- VIPREClean
- VirITClean
- ViRobotClean
- WebrootClean
- XcitiumClean
- YandexClean
- ZillyaClean
- ZoneAlarmClean
- ZonerClean
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
Moderate prevalence — neither rare nor common. No strong prior applies.
Chapter 05
Questions & answers
Short answers to the 6 questions people ask most about this file.
Is optimizerDuck.dll safe?
What is optimizerDuck.dll?
How many antivirus engines detected optimizerDuck.dll?
What is the SHA-256 hash of optimizerDuck.dll?
Is it safe to run optimizerDuck.dll?
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Community
Member reviews and reports for this exact file hash.