What is nvshext.dll?

nvshext.dll is part of NVIDIA Shell Extensions and developed by NVIDIA Corporation according to the nvshext.dll version information.

nvshext.dll's description is "NVIDIA Display Shell Extension"

nvshext.dll is digitally signed by NVIDIA Corporation.

nvshext.dll is usually located in the 'C:\Windows\System32\DriverStore\FileRepository\nvmdi.inf_amd64_2eaf9d620160f138\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about nvshext.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.

Vendor and version information [?]

The following is the available information on nvshext.dll:

PropertyValue
Product nameNVIDIA Shell Extensions
Company nameNVIDIA Corporation
File descriptionNVIDIA Display Shell Extension
Internal namenvshext.dll
Original filenamenvshext.dll
Legal copyright(C) 2020 NVIDIA Corporation. All rights reserved.
Product version446.14
File version446.14

Here's a screenshot of the file properties when displayed by Windows Explorer:

Product nameNVIDIA Shell Extensions
Company nameNVIDIA Corporation
File descriptionNVIDIA Display Shell Extension
Internal namenvshext.dll
Original filenamenvshext.dll
Legal copyright(C) 2020 NVIDIA Corporation. All rig..
Product version446.14
File version446.14

Digital signatures [?]

nvshext.dll has a valid digital signature.

PropertyValue
Signer nameNVIDIA Corporation
Certificate issuer nameSymantec Class 3 SHA256 Code Signing CA - G2
Certificate serial number62e745e92165213c971f5c490aea12a5

VirusTotal report

None of the 73 anti-virus programs at VirusTotal detected the nvshext.dll file.

None of the 73 anti-virus programs detected the nvshext.dll file.

Sandbox Report

The following information was gathered by executing the file inside Cuckoo Sandbox.

Summary

Successfully executed process in sandbox.

Summary

{
    "dll_loaded": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\dcb72826e4c3b6fc236e398aa8c61accf10e148832a279ff6a6f31ad9b1868cb.bin.dll",
        "kernel32",
        "api-ms-win-core-fibers-l1-1-1",
        "api-ms-win-core-synch-l1-2-0"
    ],
    "file_opened": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\dcb72826e4c3b6fc236e398aa8c61accf10e148832a279ff6a6f31ad9b1868cb.bin.dll"
    ],
    "command_line": [
        "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\dcb72826e4c3b6fc236e398aa8c61accf10e148832a279ff6a6f31ad9b1868cb.bin.dll,DllMain"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\dcb72826e4c3b6fc236e398aa8c61accf10e148832a279ff6a6f31ad9b1868cb.bin.dll",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\dcb72826e4c3b6fc236e398aa8c61accf10e148832a279ff6a6f31ad9b1868cb.bin.dll.manifest"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\dcb72826e4c3b6fc236e398aa8c61accf10e148832a279ff6a6f31ad9b1868cb.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"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\System32\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2588,
        "summary": {
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\dcb72826e4c3b6fc236e398aa8c61accf10e148832a279ff6a6f31ad9b1868cb.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\dcb72826e4c3b6fc236e398aa8c61accf10e148832a279ff6a6f31ad9b1868cb.bin.dll.manifest"
            ],
            "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"
            ],
            "dll_loaded": [
                "kernel32",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\dcb72826e4c3b6fc236e398aa8c61accf10e148832a279ff6a6f31ad9b1868cb.bin.dll",
                "api-ms-win-core-fibers-l1-1-1",
                "api-ms-win-core-synch-l1-2-0"
            ]
        },
        "first_seen": 1592675586.093374,
        "ppid": 2660
    },
    {
        "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2660,
        "summary": {
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\dcb72826e4c3b6fc236e398aa8c61accf10e148832a279ff6a6f31ad9b1868cb.bin.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\dcb72826e4c3b6fc236e398aa8c61accf10e148832a279ff6a6f31ad9b1868cb.bin.dll"
            ],
            "command_line": [
                "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\dcb72826e4c3b6fc236e398aa8c61accf10e148832a279ff6a6f31ad9b1868cb.bin.dll,DllMain"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\dcb72826e4c3b6fc236e398aa8c61accf10e148832a279ff6a6f31ad9b1868cb.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\dcb72826e4c3b6fc236e398aa8c61accf10e148832a279ff6a6f31ad9b1868cb.bin.dll.manifest"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\dcb72826e4c3b6fc236e398aa8c61accf10e148832a279ff6a6f31ad9b1868cb.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ]
        },
        "first_seen": 1592675585.749626,
        "ppid": 1624
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1592675585.3125,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "C:\\dvs\\p4\\build\\sw\\rel\\gpu_drv\\r445\\r445_85\\drivers\\ui\\nvshext\\x64\\ReleaseWin7\\bin\\nvshext.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "The file contains an unknown PE resource name possibly indicative of a packer",
        "severity": 1,
        "marks": [
            {
                "category": "resource name",
                "ioc": "REGINST",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_unknown_resource_name"
    }
]

Yara

The Yara rules did not detect anything in the file.

Network

{
    "tls": [],
    "udp": [
        {
            "src": "192.168.56.101",
            "dst": "192.168.56.255",
            "offset": 546,
            "time": 3.0954270362854004,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5326,
            "time": 3.019615888595581,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5654,
            "time": 1.0564768314361572,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5982,
            "time": 3.030256986618042,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6310,
            "time": 1.5388898849487305,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6638,
            "time": -0.06034708023071289,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 6966,
            "time": 1.5783848762512207,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 16764,
            "time": 1.0817530155181885,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 25148,
            "time": 3.1417429447174072,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "716b5c2ef51e8e1769633fa5aeb41424fcabfa2f2381dbb7a36c81e88301740e",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "460c727675a030a681d35fc91b5cc6c8a63ba3a0497ed56e9d6cca92cb0f4a47",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandboxScreenshot from the sandbox

Other files also named nvshext.dll

nvshext.dll (9 votes)

Hashes [?]

PropertyValue
MD5b6e5e7eed2dc47166c1d240fa09f60ad
SHA256dcb72826e4c3b6fc236e398aa8c61accf10e148832a279ff6a6f31ad9b1868cb

What will you do with nvshext.dll?

To help other users, please let us know what you will do with nvshext.dll:



Malware or legitimate?

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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Comments

Please share with the other users what you think about this file. What does this file do? Is it legitimate or something that your computer is better without? Do you know how it was installed on your system? Did you install it yourself or did it come bundled with some other software? Is it running smoothly or do you get some error message? Any information that will help to document this file is welcome. Thank you for your contributions.

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