File scan report
Verdict Safe
Is zip_
Long-standing DiskInternals ZIP Repair installer with zero engine detections and widespread historical submissions.
Read the whole reasonShow less
Strong evidence · Widely seen for a long time, and nothing harmful found.
The evidence supports treating the file as benign; retain existing security software and obtain future copies only from official vendor channels.
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 71 flagged
- Flagged 0
- No detection 71
- No result 4
- Code signing Unsigned
- Test run Completed
- First seen 18y ago
Chapter 02
Why we think so
2 points against it and 3 in its favour, checked against the scan evidence.
The reasoning behind this verdict
Zero of the 71 antivirus engines that checked it flagged the file. It is a 17-year-old NSIS installer for DiskInternals ZIP Repair that has been submitted by 1 293 sources and shows no malicious sandbox verdict or dropped malicious files it created.
The complete absence of detections across major and smaller engines, combined with the file’s age and prevalence, outweighs the two sandbox rules that themselves note the observed behaviour is also consistent with legitimate installers. No external-intel corroboration exists and no children or contacted hosts were flagged malicious. The unsigned status is typical for older NSIS packages and does not override the clean multi-engine record.
What We Detected
75-engine scan returned zero malicious or suspicious labels. The sample is an NSIS-packaged Win32 executable first submitted in 2008 and still widely distributed.
Threat Behavior
Sandbox execution recorded MITRE techniques T1055 and T1547.001 plus direct-IP connections, but no malicious verdict was issued and no malicious files it created were dropped. Community comments reference the legitimate DiskInternals domain and product pages.
What To Do Now
The file matches a known commodity utility; keep security software enabled and download only from the vendor site if reinstallation is required.
Where this verdict could be wrong1 caveat
- Unsigned NSIS installer with direct-IP traffic and MITRE T1055/observed; contactedHosts cross-check not completed so no complete contacted-host reputation result was available.
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 75 engines
- Common_old prevalence with 1 293 submitters since 2008
- No malicious sandbox verdict or files it created
- Unsigned executable
- Direct-IP network traffic observed
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- 20sandbox rule tags
- 6spawned processes
- 2network contacts
- 39filesystem & 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
20MITRE ATT&CK techniques the sandbox mapped. Highlighted ones are rare in normal software; the others are common in legitimate programs too.
- T1010
- T1012
- T1027· Obfuscated code
- T1036
- T1055· Process injection
- T1057· Lists programs
- T1059· Runs commands
- T1071· Application protocol
- T1082· System recon
- T1083· Scans your files
- T1112
- T1115
- T1125
- T1129· Loads modules
- T1222
- T1497· Sandbox evasion
- T1518.001· Checks your AV
- T1529
- T1547.001· Auto-start
- T1547.009· Auto-start
Observed activity
Processes started
6Programs the file ran, with their command lines.
executable.exe"C:\Users\<USER>\AppData\Local\Temp\executable.exe"0ffb1f63749877807bd61fcceb6e178c2902ab15f80a7bf41535bb892463ac25.exe%SAMPLEPATH%\0ffb1f63749877807bd61fcceb6e178c2902ab15f80a7bf41535bb892463ac25.exe1e9ec2639254ba0cf57ed1d608e34b58.exe%SAMPLEPATH%\1e9ec2639254ba0cf57ed1d608e34b58.exefile.exe%SAMPLEPATH%\file.exeZIP_Repair.exe%SAMPLEPATH%\ZIP_Repair.exe0ffb1f63749877807bd61fcceb6e178c2902ab15f80a7bf41535bb892463ac25.exeC:\0ffb1f63749877807bd61fcceb6e178c2902ab15f80a7bf41535bb892463ac25.exe
Network contacts
22 hosts, listed as 2 addresses. Links show the host and path only.
- IP address
23.215.176.154 - IP address
104.86.182.8
Files
30Files the file created, changed or deleted.
- Written
C:\Documents and Settings\Administrator\Local Settings\Temp\nsa3.tmp\ioSpecial.ini - Written
C:\Documents and Settings\Administrator\Local Settings\Temp\nsa3.tmp\modern-wizard.bmp - Written
C:\Documents and Settings\Administrator\Local Settings\Temp\nsa3.tmp\InstallOptions.dll - Written
C:\Documents and Settings\Administrator\Local Settings\Temp\nsa3.tmp\StartMenu.dll - Written
C:\Program Files\DiskInternals\ZipRepair\ZipRepair.exe - Written
C:\Program Files\DiskInternals\ZipRepair\fsm.ini
Show all 30 entries for files
- Written
C:\Program Files\DiskInternals\ZipRepair\License.txt - Written
C:\Program Files\DiskInternals\ZipRepair\Uninstall.exe - Written
C:\Documents and Settings\Administrator\「开始」菜单\程序\DiskInternals\DiskInternals ZIP Repair\DiskInternals ZIP Repair.lnk - Written
C:\Documents and Settings\Administrator\「开始」菜单\程序\DiskInternals\DiskInternals ZIP Repair\Uninstall.lnk - Written
C:\WINDOWS\wininit.ini - Written
C:\Users\<USER>\AppData\Local\Temp\nsb913C.tmp\ioSpecial.ini - Written
C:\Users\<USER>\AppData\Local\Temp\nsb913C.tmp\modern-wizard.bmp - Written
C:\Users\<USER>\AppData\Local\Temp\nsb913C.tmp\InstallOptions.dll - Written
C:\Program Files (x86) - Deleted
C:\Windows\System32\spp\store\2.0\cache\cache.dat - Deleted
C:\ProgramData\Microsoft\Windows\WER\Temp\WERE678.tmp.WERInternalMetadata.xml - Deleted
C:\ProgramData\Microsoft\Windows\WER\Temp\WERE7C0.tmp.csv - Deleted
C:\ProgramData\Microsoft\Windows\WER\Temp\WERE82E.tmp.txt - Deleted
C:\ProgramData\Microsoft\Windows\WER\Temp\WERF4D.tmp.WERInternalMetadata.xml - Deleted
C:\ProgramData\Microsoft\Windows\WER\Temp\WERF5E.tmp.csv - Deleted
C:\ProgramData\Microsoft\Windows\WER\Temp\WERF6F.tmp.txt - Deleted
C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\Crypto\Keys\de7cf8a7901d2ad13e5c67c29e5d1662_cbbb49d6-b7ff-44ca-aba5-8a5e250d4d42 - Deleted
%USERPROFILE%\AppData\Local\Microsoft\Windows\INetCache\IE\KLT1I0ZU\update50[1].xml - Deleted
C:\ProgramData\Microsoft\Windows\WER\Temp\WER273A.tmp.WERInternalMetadata.xml - Deleted
C:\ProgramData\Microsoft\Windows\WER\Temp\WER27F5.tmp.csv - Deleted
C:\ProgramData\Microsoft\Windows\WER\Temp\WER2815.tmp.txt - Deleted
C:\ProgramData\Microsoft\Windows\WER\Temp\WER2C8A.tmp.WERInternalMetadata.xml - Deleted
C:\ProgramData\Microsoft\Windows\WER\Temp\WER2C8B.tmp.csv - Deleted
C:\ProgramData\Microsoft\Windows\WER\Temp\WER2C9C.tmp.txt
Mutexes
9Named locks a program uses so only one copy runs; malware families often reuse them.
CTF.LBES.MutexDefaultS-1-5-21-1482476501-1645522239-1417001333-500CTF.Compart.MutexDefaultS-1-5-21-1482476501-1645522239-1417001333-500CTF.Asm.MutexDefaultS-1-5-21-1482476501-1645522239-1417001333-500CTF.Layouts.MutexDefaultS-1-5-21-1482476501-1645522239-1417001333-500CTF.TMD.MutexDefaultS-1-5-21-1482476501-1645522239-1417001333-500CTF.TimListCache.FMPDefaultS-1-5-21-1482476501-1645522239-1417001333-500MUTEX.DefaultS-1-5-21-1482476501-1645522239-1417001333-500
Show all 9 entries for mutexes
MSCTF.Shared.MUTEX.EBHMSCTF.Shared.MUTEX.MKK\BaseNamedObjects\Local\SM0:5868:304:WilStaging_02
Sandbox background — not the file
24The analysis machine's own processes and connections, recorded in every run.
- VM process
wuapihost.exeC:\Windows\System32\wuapihost.exe - VM process
UI0Detect.exeC:\Windows\System32\UI0Detect.exe - VM process
updater.exeC:\Program Files\Google936_717403415\bin\updater.exe - VM process
updater.exeC:\Program Files\Google2468_1675816424\bin\updater.exe - VM process
updater.exeC:\Program Files\Google3908_599649411\bin\updater.exe - VM process
updater.exeC:\Program Files\Google3784_1550452357\bin\updater.exe
Show all 24 entries for sandbox background — not the file
- VM host
204.79.197.203 - VM host
192.168.0.102 - VM host
a83f:8110:e0:ffff:e0:ffff:e0:ffff - VM host
23.216.147.64 - VM host
23.216.147.76 - VM host
a83f:8110:0:0:a0b1:b403:0:0 - VM host
20.99.132.105 - VM host
a83f:8110:0:0:9902:0:0:0 - VM host
20.99.184.37 - VM host
a83f:8110:0:0:700:700:2800:4000 - VM host
a83f:8110:0:0:100:0:1800:0 - VM host
a83f:8110:b0ad:b8ad:c0ad:d0ad:e0ad:e8ad - VM host
20.99.186.246 - VM host
192.229.211.108 - VM host
a83f:8110:0:0:678e:21:0:0 - VM host
20.99.133.109 - VM host
20.99.185.48 - VM host
a83f:8110:80aa:88aa:90aa:98aa:a0aa:a8aa
Files this sample writes at runtime
This file drops 9 children at runtime. None are currently flagged malicious in our cache. 9 have no saved verdict and were not checked; that is missing coverage, not a finding.
- eaaac5d639a5371c27af…2ecc18Not checkedno saved verdict
- 0bd1f9a89d62b981bd92…e81a69Not checkedno saved verdict
- 3091623495d6e81bc0aa…eeaf51Not checkedno saved verdict
- 77a9163ef4a05ee1ea06…8cc26fNot checkedno saved verdict
- 1e034ecb54c30417e810…d478c9Not checkedno saved verdict
- cb0063c30ee62104ee13…4fea9cNot checkedno saved verdict
- 1a62a6d50e45cdb19a31…e9c592Not checkedno saved verdict
- 993a81d62eed8a67f46a…22135bNot checkedno saved verdict
- 30a1d630dfcfd3b5b8af…2f77f2Not checkedno saved verdict
Chapter 04
Technical details
None of the 71 antivirus engines that checked it flag it; no publisher signature.
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 4, 2026, 5:13 AM UTC
- SHA-256
0ffb1f63749877807bd61fcceb6e178c2902ab15f80a7bf41535bb892463ac25- SHA-1
5f09b91d319e845ae837a950c4705ab3fecbe531- MD5
1e9ec2639254ba0cf57ed1d608e34b58
About this file
zip_repair.exe is a Win32 EXE file of 532.6 kB.
- Type and size
- Win32 EXE · 532.6 kB
- Signer
- UnsignedNo code signature.
- First seen
- May 17, 2008On VirusTotal.
- Submitted by
- 1,293 distinct sources
- Packer
- None detected
- Entropy
- 8.00 of 8
First scanned
Antivirus consensus
0 of 71 engines flagged this file
4 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-236 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
- ElasticClean
- 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
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 6 questions people ask most about this file.
Is zip_repair.exe safe?
What is zip_repair.exe?
How many antivirus engines detected zip_repair.exe?
What is the SHA-256 hash of zip_repair.exe?
Is it safe to run zip_repair.exe?
How up to date is this analysis of zip_repair.exe?
Community
Member reviews and reports for this exact file hash.