QsyncExt.dll is part of QsyncExt Module according to the QsyncExt.dll version information.
QsyncExt.dll's description is "QsyncExt Module"
QsyncExt.dll is digitally signed by QNAP Systems, Inc..
QsyncExt.dll is usually located in the 'C:\Program Files (x86)\QNAP\Qsync\' folder.
None of the anti-virus scanners at VirusTotal reports anything malicious about QsyncExt.dll.
If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page.
The following is the available information on QsyncExt.dll:
Property | Value |
---|---|
Product name | QsyncExt Module |
File description | QsyncExt Module |
Internal name | QsyncExt |
Original filename | QsyncExt.DLL |
Legal copyright | ©2013-2017 QNAP Systems, Inc. All rights reserved. |
Product version | 4.2.2.0720 |
File version | 1.0.0.25 |
Special build | 0720 |
Here's a screenshot of the file properties when displayed by Windows Explorer:
Product name | QsyncExt Module |
File description | QsyncExt Module |
Internal name | QsyncExt |
Original filename | QsyncExt.DLL |
Legal copyright | ©2013-2017 QNAP Systems, Inc. All r.. |
Product version | 4.2.2.0720 |
File version | 1.0.0.25 |
Special build | 0720 |
QsyncExt.dll has a valid digital signature.
Property | Value |
---|---|
Signer name | QNAP Systems, Inc. |
Certificate issuer name | Symantec Class 3 SHA256 Code Signing CA |
Certificate serial number | 10d96f3eaecca43bc6a32450d4087d28 |
None of the 72 anti-virus programs at VirusTotal detected the QsyncExt.dll file.
The following information was gathered by executing the file inside Cuckoo Sandbox.
Successfully executed process in sandbox.
{ "regkey_written": [ "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{A278B83E-A0C2-4647-B360-3447833C9655}\\InProcServer32\\(Default)", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{A278B83E-A0C2-4647-B360-3447833C9655}\\InProcServer32\\ThreadingModel", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{1D8A9C66-B81A-4C16-BBAC-D60E0E91B0AC}\\InProcServer32\\(Default)", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\ QsyncEx_Icon2\\(Default)", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{C0C7939F-2715-488B-8E66-0C960EDA5D19}\\InProcServer32\\(Default)", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\ QsyncEx_Icon1\\(Default)", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{17affcaf-2e65-4b1b-98a1-a7b3b4d8ad36}\\InProcServer32\\ThreadingModel", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\ QsyncEx_Icon4\\(Default)", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{C0C7939F-2715-488B-8E66-0C960EDA5D19}\\InProcServer32\\ThreadingModel", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{1D8A9C66-B81A-4C16-BBAC-D60E0E91B0AC}\\InProcServer32\\ThreadingModel", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\ QsyncEx_Icon3\\(Default)", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{17affcaf-2e65-4b1b-98a1-a7b3b4d8ad36}\\InProcServer32\\(Default)" ], "dll_loaded": [ "UXTHEME.DLL", "C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll" ], "file_failed": [ "C:\\Users\\cuck\\AppData\\Local\\Temp\\Config\\Main.ini" ], "regkey_opened": [ "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\ QsyncEx_Icon3", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{17affcaf-2e65-4b1b-98a1-a7b3b4d8ad36}\\InProcServer32", "HKEY_CLASSES_ROOT\\CLSID\\{17affcaf-2e65-4b1b-98a1-a7b3b4d8ad36}", "HKEY_CURRENT_USER\\Software\\QNAP\\Qsync\\OverlayIcon", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{A278B83E-A0C2-4647-B360-3447833C9655}\\InProcServer32", "HKEY_CLASSES_ROOT\\CLSID\\{A278B83E-A0C2-4647-B360-3447833C9655}", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{C0C7939F-2715-488B-8E66-0C960EDA5D19}\\InProcServer32", "HKEY_CLASSES_ROOT\\CLSID\\{C0C7939F-2715-488B-8E66-0C960EDA5D19}", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\ QsyncEx_Icon4", "HKEY_CLASSES_ROOT\\CLSID\\{1D8A9C66-B81A-4C16-BBAC-D60E0E91B0AC}", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\ QsyncEx_Icon1", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\ QsyncEx_Icon2", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{1D8A9C66-B81A-4C16-BBAC-D60E0E91B0AC}\\InProcServer32" ], "file_exists": [ "C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll.manifest", "C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll" ], "file_opened": [ "C:\\Windows\\System32\\CRYPTBASE.dll", "C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll" ], "command_line": [ "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll,DllMain" ], "file_read": [ "C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll" ], "regkey_read": [ "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorSystemHeapIsPrivate", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorUseSystemHeap", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\MaximumAllowedAllocationSize" ] }
[ { "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe", "process_name": "rundll32.exe", "pid": 2436, "summary": { "dll_loaded": [ "C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll" ], "file_opened": [ "C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll" ], "command_line": [ "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll,DllMain" ], "file_exists": [ "C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll.manifest", "C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll" ], "file_read": [ "C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll" ], "regkey_read": [ "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles" ] }, "first_seen": 1593298389.671875, "ppid": 2736 }, { "process_path": "C:\\Windows\\System32\\rundll32.exe", "process_name": "rundll32.exe", "pid": 2588, "summary": { "regkey_written": [ "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{A278B83E-A0C2-4647-B360-3447833C9655}\\InProcServer32\\(Default)", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{A278B83E-A0C2-4647-B360-3447833C9655}\\InProcServer32\\ThreadingModel", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{1D8A9C66-B81A-4C16-BBAC-D60E0E91B0AC}\\InProcServer32\\(Default)", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\ QsyncEx_Icon2\\(Default)", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{C0C7939F-2715-488B-8E66-0C960EDA5D19}\\InProcServer32\\(Default)", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\ QsyncEx_Icon1\\(Default)", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{17affcaf-2e65-4b1b-98a1-a7b3b4d8ad36}\\InProcServer32\\ThreadingModel", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\ QsyncEx_Icon4\\(Default)", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{C0C7939F-2715-488B-8E66-0C960EDA5D19}\\InProcServer32\\ThreadingModel", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{1D8A9C66-B81A-4C16-BBAC-D60E0E91B0AC}\\InProcServer32\\ThreadingModel", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\ QsyncEx_Icon3\\(Default)", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{17affcaf-2e65-4b1b-98a1-a7b3b4d8ad36}\\InProcServer32\\(Default)" ], "dll_loaded": [ "UXTHEME.DLL", "C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll" ], "file_failed": [ "C:\\Users\\cuck\\AppData\\Local\\Temp\\Config\\Main.ini" ], "regkey_opened": [ "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\ QsyncEx_Icon3", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{17affcaf-2e65-4b1b-98a1-a7b3b4d8ad36}\\InProcServer32", "HKEY_CLASSES_ROOT\\CLSID\\{17affcaf-2e65-4b1b-98a1-a7b3b4d8ad36}", "HKEY_CURRENT_USER\\Software\\QNAP\\Qsync\\OverlayIcon", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{A278B83E-A0C2-4647-B360-3447833C9655}\\InProcServer32", "HKEY_CLASSES_ROOT\\CLSID\\{A278B83E-A0C2-4647-B360-3447833C9655}", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{C0C7939F-2715-488B-8E66-0C960EDA5D19}\\InProcServer32", "HKEY_CLASSES_ROOT\\CLSID\\{C0C7939F-2715-488B-8E66-0C960EDA5D19}", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\ QsyncEx_Icon4", "HKEY_CLASSES_ROOT\\CLSID\\{1D8A9C66-B81A-4C16-BBAC-D60E0E91B0AC}", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\ QsyncEx_Icon1", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\ QsyncEx_Icon2", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{1D8A9C66-B81A-4C16-BBAC-D60E0E91B0AC}\\InProcServer32" ], "file_exists": [ "C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll.manifest", "C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll" ], "file_opened": [ "C:\\Windows\\System32\\CRYPTBASE.dll" ], "regkey_read": [ "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorSystemHeapIsPrivate", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorUseSystemHeap", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\MaximumAllowedAllocationSize" ] }, "first_seen": 1593298389.875, "ppid": 2436 }, { "process_path": "C:\\Windows\\System32\\lsass.exe", "process_name": "lsass.exe", "pid": 476, "summary": {}, "first_seen": 1593298389.328125, "ppid": 376 } ]
[ { "markcount": 2, "families": [], "description": "The file contains an unknown PE resource name possibly indicative of a packer", "severity": 1, "marks": [ { "category": "resource name", "ioc": "REGISTRY", "type": "ioc", "description": null }, { "category": "resource name", "ioc": "TYPELIB", "type": "ioc", "description": null } ], "references": [], "name": "pe_unknown_resource_name" }, { "markcount": 4, "families": [], "description": "Installs itself for autorun at Windows startup", "severity": 3, "marks": [ { "type": "generic", "reg_key": "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{17affcaf-2e65-4b1b-98a1-a7b3b4d8ad36}\\InProcServer32\\(Default)", "reg_value": "C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll" }, { "type": "generic", "reg_key": "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{1D8A9C66-B81A-4C16-BBAC-D60E0E91B0AC}\\InProcServer32\\(Default)", "reg_value": "C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll" }, { "type": "generic", "reg_key": "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{C0C7939F-2715-488B-8E66-0C960EDA5D19}\\InProcServer32\\(Default)", "reg_value": "C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll" }, { "type": "generic", "reg_key": "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\CLSID\\{A278B83E-A0C2-4647-B360-3447833C9655}\\InProcServer32\\(Default)", "reg_value": "C:\\Users\\cuck\\AppData\\Local\\Temp\\54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b.bin.dll" } ], "references": [], "name": "persistence_autorun" } ]
The Yara rules did not detect anything in the file.
{ "tls": [], "udp": [ { "src": "192.168.56.101", "dst": "192.168.56.255", "offset": 546, "time": 3.0665459632873535, "dport": 137, "sport": 137 }, { "src": "192.168.56.101", "dst": "224.0.0.252", "offset": 5578, "time": 3.0028669834136963, "dport": 5355, "sport": 51001 }, { "src": "192.168.56.101", "dst": "224.0.0.252", "offset": 5906, "time": 1.0460619926452637, "dport": 5355, "sport": 53595 }, { "src": "192.168.56.101", "dst": "224.0.0.252", "offset": 6234, "time": 3.01078200340271, "dport": 5355, "sport": 53848 }, { "src": "192.168.56.101", "dst": "224.0.0.252", "offset": 6562, "time": 1.5487420558929443, "dport": 5355, "sport": 54255 }, { "src": "192.168.56.101", "dst": "224.0.0.252", "offset": 6890, "time": -0.0888059139251709, "dport": 5355, "sport": 55314 }, { "src": "192.168.56.101", "dst": "239.255.255.250", "offset": 7218, "time": 1.5785930156707764, "dport": 1900, "sport": 1900 }, { "src": "192.168.56.101", "dst": "239.255.255.250", "offset": 20158, "time": 1.082045078277588, "dport": 3702, "sport": 49152 }, { "src": "192.168.56.101", "dst": "239.255.255.250", "offset": 28542, "time": 3.1022889614105225, "dport": 1900, "sport": 53598 } ], "dns_servers": [], "http": [], "icmp": [], "smtp": [], "tcp": [], "smtp_ex": [], "mitm": [], "hosts": [], "pcap_sha256": "8a642a8d7bc96f54dafe1f2ab42cf064aa86ea61b68986e8dc68c7014d757baa", "dns": [], "http_ex": [], "domains": [], "dead_hosts": [], "sorted_pcap_sha256": "4c3f32d7b0cbda02affe3ae68b67c5be521e895f0ff14bd47eef1718a261df66", "irc": [], "https_ex": [] }
QsyncExt.dll (3 votes)
Property | Value |
---|---|
MD5 | dfa5f097c4c707a64b1d50a134a88bfd |
SHA256 | 54da03ab56ba37a0f6f0512d1fe3fd1604ccdcaa619388e9ac1f65255c8e936b |
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The poll result listed below shows what users chose to do with QsyncExt.dll. 50% have voted for removal. Based on votes from 2 users.
NOTE: Please do not use this poll as the only source of input to determine what you will do with QsyncExt.dll. Only 2 users has voted so far so it does not offer a high degree of confidence.
If you feel that you need more information to determine if your should keep this file or remove it, please read this guide.
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