File scan report
Verdict Suspicious
Is Alpine_
No antivirus engine flagged it, and the sample has been submitted over a thousand times without a confirmed malicious family.
Read the whole reasonShow less
Why Suspicious? YARAify matched 6 community rules.
Limited evidence · One sign points to a problem; nothing else confirms it.
Treat the installer with caution; run it only inside a disposable VM or after confirming its checksum with the vendor.
What to do now4 steps
Some signs point to a problem, but nothing confirms it is harmful. Treat it with caution.
What to do
Don't install it unless you're sure where it came from.
Check where you got it: an unexpected attachment, a link someone sent you or a re-upload is a red flag.
If you can't confirm where it came from, delete it. If you need the program, download it again from the publisher's own website.
If you already installed it
Stop using it, run a full scan with your antivirus and watch for unexpected behavior or security alerts.
Not sure what to do?
Ask the MalwareTips community before you run it. If you already ran it, follow the cleanup guide.
- Ask for free help on the MalwareTips forumWindows malware removal help, answered by volunteers. (opens malwaretips.com in a new tab)
- Remove malware from WindowsStep-by-step cleanup with free tools. (opens malwaretips.com in a new tab)
Paste this report's link in your topic so helpers can see what was found.
Reads the latest antivirus results for this file's hash. Nothing is uploaded.
Antivirus results
0 of 65 flagged
- Flagged 0
- No detection 65
- No result 10
- Code signing CRYSTAL DEVELOPMENT, LLC
- Test run Completed
- First seen 1y ago
Chapter 02
Why we think so
2 points against it and 4 in its favour, checked against the scan evidence.
The reasoning behind this verdict
Zero detections across 75 engines and a verified signature reduce the likelihood of commodity malware. Samples built with the same import table have produced mixed verdicts, and the signer has no historical track record. These conflicting signals place the file in the suspicious band.
What We Detected
75 engines scanned the 7.5 MB executable; none returned a malicious or suspicious result. The binary is signed by 'CRYSTAL DEVELOPMENT' and verified. YARAify matched six rules, among them 'CP_Script_Inject_Detector' and 'HUNTING_SUSP_TLS_SECTION'. Ten files it created were inspected; none carried a malicious verdict.
Threat Behavior
The installer writes files to %LocalAppData%\Programs\Alpine Client and spawns 'pinnacle-windows-amd64.exe'. Observed outbound traffic used direct IP addresses rather than domains. No persistence mechanisms or registry modifications were recorded. The contacted hosts cache returned no prior malicious entries.
What To Do Now
Keep Windows Defender and other security software enabled. If the file originated from an official Alpine Client distribution channel, compare its SHA-256 against the vendor's published checksum. Otherwise, avoid execution until additional corroboration is available.
Where this verdict could be wrong2 caveats
- YARAify returned 6 rule hits, but rules are generic (Borland, TLS callbacks, digital certificate) rather than family-specific malware signatures.
- Community comment claims 'Malware' with score 100/100, yet no engine detection corroborates that claim.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- 0/65 engines flagged the sample
- Verified digital signature present
- widely seen and long established prevalence (1223 submitters)
- No malicious files it created or contacted hosts
- YARAify matched 6 community rules
- Signer 'CRYSTAL DEVELOPMENT' has no prior sample history
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- 25sandbox rule tags
- 6spawned processes
- 4network contacts
- 40filesystem & mutex artifacts
What the test run showed
What the file did on a test computer
Confirmed in the test run
Moderate concern: Contains packed or scrambled code that is harder to inspect (common in installers too).
Moderate concern: Ran commands or a script on the test computer.
Moderate concern: Unpacked hidden content while it ran.
Moderate concern: Checked whether it was running on a test computer.
Note: Read the user name of the test computer.
Note: Listed the programs running on the test computer.
Note: Deleted files or logs during the test run (installers often clean up after themselves).
Sandbox labels we could not confirm (common in safe files too)
Not confirmed: A sandbox rule tagged this run as code injection, but no injected program was recorded.
This file was run on a test computer (a sandbox), not on yours. Labels we could not confirm are listed so you can see them, but they are not treated as evidence against the file.
Recorded behavior
What happened in the test
Grouped by step. The order is not a timeline.
- 1
Input file
The submitted object
- Evidence 1 of 7: FileSeen in the test run
Alpine_Client_Setup_1_8_5_x86_64_8dd1bd0c66.exe
7d98f239dd3585dd8da29130aacbcda6617584494abfb2ed4bfe75265aafd5ec
Uploaded file
- 2
Processes
What ran
- Evidence 2 of 7: ProcessSeen in the test run
AlpineClientSetup-1.8.5-x86_64.exe
"C:\Users\<USER>\Desktop\AlpineClientSetup-1.8.5-x86_64.exe"
Test run - Evidence 3 of 7: ProcessSeen in the test run
AlpineClientSetup-1.8.5-x86_64.tmp
"C:\Users\<USER>\AppData\Local\Temp\is-IMH11.tmp\AlpineClientSetup-1.8.5-x86_64.tmp" /SL5="$3D01A8,6051439,1370112,C:\Users\<USER>\Desktop\AlpineClientSetup-1.8.5-x86_64.exe"
Test run - +1 more recorded observation
- 2
Files
Created or changed
- Evidence 4 of 7: Written fileSeen in the test run
AlpineClientSetup-1.8.5-x86_64.tmp
C:\Users\<USER>\AppData\Local\Temp\is-IMH11.tmp\AlpineClientSetup-1.8.5-x86_64.tmp
Test run - Evidence 5 of 7: Written fileSeen in the test run
_setup64.tmp
C:\Users\<USER>\AppData\Local\Temp\is-8LGDQ.tmp\_isetup\_setup64.tmp
Test run - +1 more recorded observation
- 2
Network
Hosts contacted
- Evidence 6 of 7: Contacted hostSeen in the test run
104.18.10.102
Contacted during the test run.
Test run - Evidence 7 of 7: Contacted hostSeen in the test run
140.82.112.5
Contacted during the test run.
Test run - +1 more recorded observation
7 facts from the test run. See the full activity list.
What this file did when executed
This file was run in a sandbox and its runtime behaviour was observed.
Techniques observed in the sandbox
25MITRE 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
- T1027.009· Obfuscated code
- T1033· Reads user info
- T1045
- T1055· Process injection
- T1057· Lists programs
- T1059· Runs commands
- T1063
- T1070· Covers its tracks
- T1071· Application protocol
- T1082· System recon
- T1083· Scans your files
- T1129· Loads modules
- T1134
- T1134.004
- T1140· Deobfuscation
- T1198
- T1485
- T1497· Sandbox evasion
- T1518· Checks your AV
- T1529
- T1614
- T1614.001
Observed activity
Processes started
6Programs the file ran, with their command lines.
AlpineClientSetup-1.8.5-x86_64.exe"C:\Users\<USER>\Desktop\AlpineClientSetup-1.8.5-x86_64.exe"AlpineClientSetup-1.8.5-x86_64.tmp"C:\Users\<USER>\AppData\Local\Temp\is-IMH11.tmp\AlpineClientSetup-1.8.5-x86_64.tmp" /SL5="$3D01A8,6051439,1370112,C:\Users\<USER>\Desktop\AlpineClientSetup-1.8.5-x86_64.exe"pinnacle-windows-amd64.exe"C:\Users\<USER>\AppData\Local\Programs\Alpine Client\pinnacle-windows-amd64.exe"AlpineClientSetup-1.8.5-x86_64.exe%SAMPLEPATH%\AlpineClientSetup-1.8.5-x86_64.exeAlpineClientSetup-1.8.5-x86_64.tmp%USERPROFILE%\AppData\Local\Temp\is-O1M7R.tmp\AlpineClientSetup-1.8.5-x86_64.tmpAlpineClientSetup-1.8.5-x86_64.exeC:\Users\<USER>\AppData\Local\Temp\is-U1I56.tmp\AlpineClientSetup-1.8.5-x86_64.tmp /SL5=$50164,6051439,1370112,C:\Users\<USER>\Downloads\AlpineClientSetup-1.8.5-x86_64.exe
Network contacts
44 hosts, listed as 3 addresses, 1 link. Links show the host and path only.
- IP address
104.18.10.102 - IP address
140.82.112.5 - IP address
151.101.194.133 - URL
http://secure.globalsign.com/cacert/root-r3.crt
Files
30Files the file created, changed or deleted.
- Written
C:\Users\<USER>\AppData\Local\Temp\is-IMH11.tmp\AlpineClientSetup-1.8.5-x86_64.tmp - Written
C:\Users\<USER>\AppData\Local\Temp\is-8LGDQ.tmp\_isetup\_setup64.tmp - Written
C:\Users\<USER>\AppData\Local\Temp\is-8LGDQ.tmp\_isetup\_isdecmp.dll - Written
C:\Users\<USER>\AppData\Local\Programs\Alpine Client\pinnacle-windows-amd64.exe - Written
C:\Users\<USER>\AppData\Local\Programs\Alpine Client\unins000.dat - Written
C:\Users\<USER>\AppData\Local\Programs\Alpine Client\is-BBGU8.tmp
Show all 30 entries for files
- Written
C:\Users\<USER>\AppData\Local\Programs\Alpine Client\unins000.exe - Written
C:\Users\<USER>\AppData\Local\Programs\Alpine Client\is-5QQTN.tmp - Written
C:\Users\<USER>\AppData\Local\Programs\Alpine Client\is-K2PT9.tmp - Written
C:\Users\<USER>\AppData\Local\Programs\Alpine Client\LICENSE - Written
C:\Users\<USER>\AppData\Local\Programs\Alpine Client\is-VTU6C.tmp - Written
C:\Users\<USER>\AppData\Local\Programs\Alpine Client\alpine-client.ico - Written
C:\Users\<USER>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Alpine Client\Alpine Client.lnk - Written
C:\Users\<USER>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Alpine Client\Alpine Client on the Web.url - Written
C:\Users\<USER>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Alpine Client\Uninstall Alpine Client.lnk - Deleted
C:\Users\<USER>\AppData\Local\Programs\Alpine Client\is-BBGU8.tmp - Deleted
C:\Users\<USER>\AppData\Local\Programs\Alpine Client\is-5QQTN.tmp - Deleted
C:\Users\<USER>\AppData\Local\Programs\Alpine Client\is-K2PT9.tmp - Deleted
C:\Users\<USER>\AppData\Local\Programs\Alpine Client\is-VTU6C.tmp - Deleted
C:\Users\<USER>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Alpine Client\Alpine Client.lnk - Deleted
C:\Users\<USER>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Alpine Client\Alpine Client.pif - Deleted
C:\Users\<USER>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Alpine Client\Alpine Client.url - Deleted
C:\Users\<USER>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Alpine Client\Alpine Client on the Web.lnk - Deleted
C:\Users\<USER>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Alpine Client\Alpine Client on the Web.pif - Deleted
C:\Users\<USER>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Alpine Client\Alpine Client on the Web.url - Deleted
C:\Users\<USER>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Alpine Client\Uninstall Alpine Client.lnk - Deleted
C:\Users\<USER>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Alpine Client\Uninstall Alpine Client.pif - Deleted
C:\Users\<USER>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Alpine Client\Uninstall Alpine Client.url - Deleted
C:\Users\<USER>\AppData\Local\Temp\is-8LGDQ.tmp\_isetup\_isdecmp.dll - Deleted
C:\Users\<USER>\AppData\Local\Temp\is-8LGDQ.tmp\_isetup
Registry and auto-start
5Settings the file changed, including ways to start again after a restart.
- Deleted
HKEY_CURRENT_USER\SOFTWARE\Microsoft\RestartManager\Session0000\RegFilesHash - Deleted
HKEY_CURRENT_USER\SOFTWARE\Microsoft\RestartManager\Session0000\RegFiles0000 - Deleted
HKEY_CURRENT_USER\SOFTWARE\Microsoft\RestartManager\Session0000\SessionHash - Deleted
HKEY_CURRENT_USER\SOFTWARE\Microsoft\RestartManager\Session0000\Sequence - Deleted
HKEY_CURRENT_USER\SOFTWARE\Microsoft\RestartManager\Session0000\Owner
Mutexes
10Named locks a program uses so only one copy runs; malware families often reuse them.
Local\InternetShortcutMutexcversions.3.mLocal\RstrMgr3887CAB8-533F-4C85-B0DC-3E5639F8D511Local\RstrMgr-3887CAB8-533F-4C85-B0DC-3E5639F8D511-Session0000DefaultTabtip-MainUILocal\MSCTF.Asm.MutexDefault1
Show all 10 entries for mutexes
\BaseNamedObjects\Local\SM0:1688:304:WilStaging_02\BaseNamedObjects\Local\SM0:1688:120:WilError_03\BaseNamedObjects\Local\ZonesCacheCounterMutex\BaseNamedObjects\Local\ZonesLockedCacheCounterMutex
Sandbox background — not the file
11The analysis machine's own processes and connections, recorded in every run.
- VM process
Explorer.EXEC:\Windows\Explorer.EXE - VM process
services.exeC:\Windows\system32\services.exe - 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 11 entries for sandbox background — not the file
- VM process
svchost.exeC:\Windows\system32\svchost.exe -k LocalService -s W32Time - VM process
UI0Detect.exeC:\Windows\System32\UI0Detect.exe - VM process
updater.exeC:\Program Files\Google1168_1162893600\bin\updater.exe - VM host
192.168.0.39 - VM host
23.55.140.42
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.
- 2684de17300e0a434686…7c5d50Not checkedno saved verdict
- 27e22d0d51a70e1a7547…08c8a4Not checkedno saved verdict
- 9624fc5fec690c911467…e4ceb6Not checkedno saved verdict
- 16a19763520bc5acfa82…a4042fNot checkedno saved verdict
- 6a254d08c979361fea14…8f63e8Not checkedno saved verdict
- 8a4f0a4d144f8fd1ed33…a38f4eNot checkedno saved verdict
- fc4f2f450025ee0ba84c…10fb87Not checkedno saved verdict
- 8287d0e287a66ee78537…a57e64Not checkedno saved verdict
- eae0de6984b220f60d58…4dc0d7Not checkedno saved verdict
Chapter 04
Technical details
None of the 65 antivirus engines that checked it flag it; signed by CRYSTAL DEVELOPMENT, LLC.
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
- Oct 17, 2026, 1:30 PM UTC
- SHA-256
7d98f239dd3585dd8da29130aacbcda6617584494abfb2ed4bfe75265aafd5ec- SHA-1
496de3f3e9a24b1d97f0da5b275b9aff8010e224- MD5
855c64d8ec5dd35749fecbac2334aa9f
About this file
Alpine_Client_Setup_1_8_5_x86_64_8dd1bd0c66.exe is a Win32 EXE file of 7.5 MB.
- Type and size
- Win32 EXE · 7.5 MB
- Signer
- CRYSTAL DEVELOPMENT, LLCValid code signature.
- First seen
- Sep 5, 2025On VirusTotal.
- Submitted by
- 1,223 distinct sources
- Packer
- None detected
- Entropy
- 8.00 of 8
First scanned Updated
Antivirus consensus
0 of 65 engines flagged this file
10 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-116 engines0flagged
- Tier-232 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
- BitDefenderNo result
- BitDefenderFalxNo result
- BkavClean
- CAT-QuickHealClean
- ClamAVClean
- CMCClean
- CrowdStrikeClean
- CTXClean
- CylanceClean
- CynetClean
- DeepInstinctNo result
- DrWebClean
- ElasticClean
- EmsisoftClean
- ESET-NOD32Clean
- F-SecureClean
- FortinetClean
- GDataClean
- GoogleNo result
- GridinsoftClean
- huorongClean
- IkarusNo result
- JiangminClean
- K7AntiVirusClean
- K7GWClean
- KasperskyClean
- KingsoftClean
- LionicClean
- MalwarebytesClean
- MaxSecureClean
- McAfeeDClean
- MicrosoftClean
- MicroWorld-eScanClean
- NANO-AntivirusClean
- PaloaltoClean
- PandaClean
- RisingClean
- SangforClean
- SentinelOneClean
- SkyhighNo result
- SophosClean
- SUPERAntiSpywareClean
- SymantecClean
- SymantecMobileInsightNo result
- TACHYONClean
- tehtrisClean
- TencentClean
- TrapmineClean
- TrellixENSClean
- TrendMicroClean
- TrendMicro-HouseCallClean
- TrustlookNo result
- VaristClean
- VBA32Clean
- VIPREClean
- VirITClean
- ViRobotClean
- WebrootClean
- XcitiumClean
- YandexNo result
- ZillyaClean
- ZoneAlarmClean
- ZonerClean
Signatures and behavior heuristics
Community YARA rules matched, but all of them are generic capability, anti-debug or compiler rules that ordinary software also matches. Worth noting, not on their own cause for alarm.
Showing the 5 saved rule names of 6 matched.
- Borlandgeneric
- CP_Script_Inject_Detectorgeneric
- HUNTING_SUSP_TLS_SECTIONgeneric
- pe_detect_tls_callbacksgeneric
- PE_Digital_Certificategeneric
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 Alpine_Client_Setup_1_8_5_x86_64_8dd1bd0c66.exe safe, or is it malware?
What is Alpine_Client_Setup_1_8_5_x86_64_8dd1bd0c66.exe?
How many antivirus engines detected Alpine_Client_Setup_1_8_5_x86_64_8dd1bd0c66.exe?
I already downloaded and installed Alpine_Client_Setup_1_8_5_x86_64_8dd1bd0c66.exe — what should I do?
Is Alpine_Client_Setup_1_8_5_x86_64_8dd1bd0c66.exe digitally signed?
What is the SHA-256 hash of Alpine_Client_Setup_1_8_5_x86_64_8dd1bd0c66.exe?
How up to date is this analysis of Alpine_Client_Setup_1_8_5_x86_64_8dd1bd0c66.exe?
Community
Member reviews and reports for this exact file hash.