File scan report
Verdict Safe
Is Bloxstrap.
None of the 68 antivirus engines that checked it flagged this Roblox launcher build, the sandbox run came back clean, and thousands of distinct submitters have seen it over…
Read the whole reasonShow less
Moderate evidence · No engine flags it, but no publisher signature confirms who made it.
This file appears to be a benign launcher build. Obtain it from the official project release page and keep your security software enabled.
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 68 flagged
- Flagged 0
- No detection 68
- No result 7
- Code signing SignPath Foundation
- Test run Completed
- First seen 6mo ago
Chapter 02
Why we think so
0 points against it and 4 in its favour, checked against the scan evidence.
The reasoning behind this verdict
It is widely seen, with about 3,700 distinct submitters.
None of the 68 antivirus engines that checked it flagged the file, and every major antivirus engine that analysed it reported it clean. The run behaved like a .NET launcher. It opened a Microsoft page for the .NET runtime and contacted Microsoft and Azure services, and our host check of 18 contacts found nothing malicious or suspicious. The file is signed through SignPath Foundation, a signing service used by many open-source projects, so the signature does not identify the author by itself. Broad prevalence over about 200 days and the absence of any detection support a benign reading.
What We Detected
None of the 68 antivirus engines that checked it flagged this file. It carries a valid signature from SignPath Foundation, a service that signs code for many independent projects. The file shows no packing, and about 3,700 distinct submitters have reported it.
Threat Behavior
The sandbox run returned clean. The program launched itself and opened Edge to a Microsoft .NET runtime page, which is typical when the required framework is missing. The contacted hosts were Microsoft, Azure and analytics services, and none is known malicious in our records. One dropped file has a clean report.
What To Do Now
Download this launcher only from its official project release page. Keep your antivirus enabled while you install and use it.
Where this verdict could be wrong2 caveats
- The signature comes from a multi-tenant signing service, so it does not confirm who wrote the file.
- Some third-party sandbox reports cited in community comments rated it suspicious or gave a high threat score, although they named no malware family.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- No detections from any of the 75 engines, including all major antivirus engines that analysed it
- The sandbox run was clean, with no high-risk techniques and no injected processes
- Widely seen, with about 3,700 distinct submitters over roughly 200 days
- No contacted host is known to be malicious or suspicious
6 sources checked · 5 complete · 1 partial. 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- 9sandbox rule tags
- 3spawned processes
- 24network contacts
- 17filesystem & mutex artifacts
What this file did when executed
This file was run in a sandbox and its runtime behaviour was observed.
Sandbox verdicts
1- VT: CLEANclean
Techniques observed in the sandbox
9MITRE ATT&CK techniques the sandbox mapped. Highlighted ones are rare in normal software; the others are common in legitimate programs too.
- T1012
- T1027· Obfuscated code
- T1027.002· Obfuscated code
- T1055· Process injection
- T1071· Application protocol
- T1082· System recon
- T1129· Loads modules
- T1497.001· Sandbox evasion
- T1539
Observed activity
Processes started
3Programs the file ran, with their command lines.
Bloxstrap-v2.11.3.exe"C:\Users\<USER>\Desktop\Bloxstrap-v2.11.3.exe"msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://aka.ms/dotnet-core-applaunch?framework=Microsoft.NETCore.App&framework_version=6.0.0&arch=x64&rid=win-x64&os=win10&gui=trueBloxstrap-v2.11.3.exe"C:\Users\user\Desktop\Bloxstrap-v2.11.3.exe"
Network contacts
2424 hosts, listed as 14 domains, 10 addresses. Links show the host and path only.
- Domain
aka.ms - Domain
js.monitor.azure.com - Domain
microsoftmscompoc.tt.omtrdc.net - Domain
img-prod-cms-rt-microsoft-com.akamaized.net - Domain
westus2-0.in.applicationinsights.azure.com - Domain
xpaywalletcdn.azureedge.net
Show all 24 entries for network contacts
- Domain
www.clarity.ms - Domain
scripts.clarity.ms - Domain
c.clarity.ms - Domain
c.bing.com - Domain
z.clarity.ms - Domain
clients2.googleusercontent.com - Domain
edgeassetservice.azureedge.net - Domain
mdec.nelreports.net - IP address
184.29.31.250 - IP address
150.171.73.13 - IP address
23.205.110.28 - IP address
20.9.155.148 - IP address
4.153.187.221 - IP address
150.171.28.10 - IP address
52.184.222.228 - IP address
74.125.127.132 - IP address
20.9.155.150 - IP address
23.53.127.102
Files
16Files the file created, changed or deleted.
- Written
\Device\NamedPipe\Sessions\1\AppContainerNamedObjects\S-1-15-2-543634040-274359014-2226501544-3561766748-3991453649-3543631192-522786984 - Written
C:\Windows\ServiceProfiles\LocalService\AppData\Local\FontCache\Fonts\Download-1.tmp - Written
C:\Users\<USER>\AppData\Local\Temp\edge_BITS_3788_1778349597\BITFA97.tmp - Written
C:\Users\<USER>\AppData\Local\Temp\edge_BITS_3788_1778349597\e1447940-5090-4f3b-9c07-17966e50ad9c - Written
C:\Users\<USER>\AppData\Local\Temp\edge_BITS_3788_1968228886\BIT59CF.tmp - Written
C:\Users\<USER>\AppData\Local\Temp\edge_BITS_3788_1968228886\c7831e1d-049b-49a9-a0b0-4293890a851f
Show all 16 entries for files
- Written
C:\Users\<USER>\AppData\Local\Temp\edge_BITS_3788_2030644532\BIT6A2C.tmp - Written
C:\Users\<USER>\AppData\Local\Temp\edge_BITS_3788_2030644532\ca310418-5fd0-4e5d-b086-36b0e159c39e - Written
C:\Users\<USER>\AppData\Local\Temp\edge_BITS_3788_1522850561\BIT8A76.tmp - Written
C:\Users\<USER>\AppData\Local\Temp\edge_BITS_3788_1522850561\7ebeb4a3-d71e-4d78-beee-b385bc4c019d - Written
C:\Users\<USER>\AppData\Local\Temp\edge_BITS_3788_1957457258\BIT9AA4.tmp - Written
C:\Users\<USER>\AppData\Local\Temp\edge_BITS_3788_1957457258\1e28e48d-ddbb-4683-b65f-3b1064f7bf7f - Written
C:\Users\<USER>\AppData\Local\Temp\edge_BITS_3788_733292229\BITAB2F.tmp - Written
C:\Users\<USER>\AppData\Local\Temp\edge_BITS_3788_733292229\88ab58c8-363a-4ed8-a142-6f84754f3960 - Written
C:\Users\<USER>\AppData\Local\Temp\edge_BITS_3788_1186636883\BITBCA5.tmp - Deleted
C:\ProgramData\Microsoft\Windows\LfSvc\Cache
Registry and auto-start
3Settings the file changed, including ways to start again after a restart.
- Set
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SlowContextMenuEntries - Set
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix - Set
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix
Mutexes
1Named locks a program uses so only one copy runs; malware families often reuse them.
\Sessions\1\BaseNamedObjects\DBWinMutex
Sandbox background — not the file
12The analysis machine's own processes and connections, recorded in every run.
- VM process
services.exeC:\Windows\system32\services.exe - VM process
RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding - VM process
svchost.exeC:\Windows\System32\svchost.exe -k NetworkService -p - VM process
svchost.exeC:\Windows\system32\svchost.exe -k UnistackSvcGroup - VM process
svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc - VM process
lsass.exeC:\Windows\system32\lsass.exe
Show all 12 entries for sandbox background — not the file
- VM process
svchost.exeC:\Windows\system32\svchost.exe -k LocalService -s W32Time - VM host
business.bing.com - VM host
edge-mobile-static.azureedge.net - VM host
edge-consumer-static.azureedge.net - VM host
www.bing.com - VM host
162.159.36.2
Files this sample writes at runtime
This file drops 2 children at runtime. None are currently flagged malicious in our cache. 1 has no saved verdict and was not checked; that is missing coverage, not a finding.
- cf81b3fb6fa4fa5382e6…30564cNot checkedno saved verdict
- 0d20debb26fc8b2bc84f…798941Clean0/74 enginestrust 91from our cache
Chapter 04
Technical details
None of the 68 antivirus engines that checked it flag it; signed by SignPath Foundation.
Sources checked
Every check behind this verdict
6 sources checked · 5 complete · 1 partial. Complete means the check returned a usable result; it does not mean the file is safe.
File fingerprint
- Last analyzed
- Sep 26, 2026, 1:53 AM UTC
- SHA-256
4d423ad46d0bf43cd22c9c1b5d25167edc15e784a57e94f889f1eefb5ce238a0- SHA-1
bf3d5f6baca61e27b61d7365bc58df4e8f2f967c- MD5
3240bc150c493952fc0c727f47b96f5b
About this file
Bloxstrap.dll is a Win32 EXE file of 12.5 MB.
- Type and size
- Win32 EXE · 12.5 MB
- Signer
- SignPath FoundationValid code signature.
- First seen
- Apr 4, 2026On VirusTotal.
- Submitted by
- 3,720 distinct sources
- Packer
- None detected
- Entropy
- 5.95 of 8
First scanned Updated
Verdict history
- Suspicious
- Safeafter a re-check of the saved evidence
Ratings change when antivirus engines, our checks or MalwareTips staff learn more about a file.
Antivirus consensus
0 of 68 engines flagged this file
7 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-117 engines0flagged
- Tier-235 engines0flagged
- Low-trust16 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
- ClamAVNo result
- CMCClean
- CrowdStrikeClean
- CTXClean
- CylanceClean
- CynetClean
- DeepInstinctClean
- DrWebClean
- ElasticClean
- EmsisoftClean
- ESET-NOD32Clean
- F-SecureClean
- FortinetClean
- GDataClean
- GoogleClean
- GridinsoftClean
- huorongClean
- IkarusClean
- JiangminClean
- K7AntiVirusClean
- K7GWClean
- KasperskyClean
- KingsoftClean
- LionicClean
- MalwarebytesClean
- MaxSecureNo result
- McAfeeDClean
- MicrosoftClean
- MicroWorld-eScanClean
- NANO-AntivirusClean
- PaloaltoClean
- PandaClean
- RisingClean
- SangforClean
- SentinelOneClean
- SkyhighClean
- SophosClean
- SUPERAntiSpywareClean
- SymantecClean
- SymantecMobileInsightNo result
- TACHYONClean
- tehtrisClean
- TencentClean
- TrapmineClean
- TrellixENSNo result
- TrendMicroClean
- TrendMicro-HouseCallClean
- TrustlookNo result
- VaristClean
- VBA32Clean
- VIPREClean
- VirITClean
- ViRobotClean
- WebrootClean
- XcitiumClean
- YandexClean
- ZillyaClean
- ZoneAlarmClean
- ZonerClean
Signatures and behavior heuristics
Low-severity pattern matches — worth noting but not on their own cause for alarm.
VirusTotal's sandbox summary maps this run to MITRE T1055 (Process Injection), but no injected process of the sample's own was recorded (the analysis VM's own WMI adapter, crash handlers and Chrome updater are not counted). VirusTotal maps T1055 on about half of all files no engine flags, so the mapping alone is not evidence of injection.
EvidenceT1055 (sandbox MITRE mapping)
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.
Chapter 05
Questions & answers
Short answers to the 7 questions people ask most about this file.
Is Bloxstrap.dll safe?
What is Bloxstrap.dll?
How many antivirus engines detected Bloxstrap.dll?
Is Bloxstrap.dll digitally signed?
What is the SHA-256 hash of Bloxstrap.dll?
Is it safe to run Bloxstrap.dll?
How up to date is this analysis of Bloxstrap.dll?
Community
Member reviews and reports for this exact file hash.