What is nvda_slave.exe?

nvda_slave.exe is part of NVDA and developed by NV Access according to the nvda_slave.exe version information.

nvda_slave.exe's description is "NVDA"

nvda_slave.exe is digitally signed by NV Access Limited.

nvda_slave.exe is usually located in the 'C:\Program Files\NVDA\' folder.

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

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 nvda_slave.exe:

PropertyValue
Product nameNVDA
Company nameNV Access
File descriptionNVDA
Original filenamenvda_slave.exe
Legal copyrightCopyright (C) 2006-2016 NVDA Contributors
Product version2016.3
File version0.0.0.0

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

Product nameNVDA
Company nameNV Access
File descriptionNVDA
Original filenamenvda_slave.exe
Legal copyrightCopyright (C) 2006-2016 NVDA Contrib..
Product version2016.3
File version0.0.0.0

Digital signatures [?]

nvda_slave.exe has a valid digital signature.

PropertyValue
Signer nameNV Access Limited
Certificate issuer nameDigiCert SHA2 Assured ID Code Signing CA
Certificate serial number04ddc1dc2e6f23ab560b89273d43a31c

VirusTotal report

None of the 71 anti-virus programs at VirusTotal detected the nvda_slave.exe file.

None of the 71 anti-virus programs detected the nvda_slave.exe file.

Sandbox Report

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

Summary

Successfully executed process in sandbox.

Summary

{
    "file_failed": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\library.zip"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Nls\\Language\\InstallLanguageFallback",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
        "HKEY_CURRENT_USER\\Control Panel\\Desktop\\PreferredUILanguages",
        "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\MUI\\UILanguages\\en-US\\Type",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Windows\\Windows Error Reporting\\WMR\\Disable",
        "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\MUI\\UILanguages\\en-US\\AlternateCodePage",
        "HKEY_CURRENT_USER\\Control Panel\\Desktop\\MuiCached\\MachinePreferredUILanguages",
        "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Nls\\CustomLocale\\EMPTY"
    ],
    "dll_loaded": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\PYTHON27.DLL"
    ],
    "file_opened": [
        "C:\\Windows\\SysWOW64\\en-US\\KERNELBASE.dll.mui"
    ]
}

Generic

[
    {
        "process_path": "C:\\Users\\cuck\\AppData\\Local\\Temp\\9772c1f3c7fb325815b55d5bba65409340cdd47926e43c14c2c3473e90a099ea.bin",
        "process_name": "9772c1f3c7fb325815b55d5bba65409340cdd47926e43c14c2c3473e90a099ea.bin",
        "pid": 2816,
        "summary": {
            "file_failed": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\library.zip"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Nls\\Language\\InstallLanguageFallback",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
                "HKEY_CURRENT_USER\\Control Panel\\Desktop\\PreferredUILanguages",
                "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\MUI\\UILanguages\\en-US\\Type",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Windows\\Windows Error Reporting\\WMR\\Disable",
                "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\MUI\\UILanguages\\en-US\\AlternateCodePage",
                "HKEY_CURRENT_USER\\Control Panel\\Desktop\\MuiCached\\MachinePreferredUILanguages",
                "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Nls\\CustomLocale\\EMPTY"
            ],
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\PYTHON27.DLL"
            ],
            "file_opened": [
                "C:\\Windows\\SysWOW64\\en-US\\KERNELBASE.dll.mui"
            ]
        },
        "first_seen": 1567713184.6562,
        "ppid": 2736
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1567713184.3438,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "The file contains an unknown PE resource name possibly indicative of a packer",
        "severity": 1,
        "marks": [
            {
                "category": "resource name",
                "ioc": "PYTHONSCRIPT",
                "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": 662,
            "time": 6.2240061759949,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5694,
            "time": 6.1841089725494,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6022,
            "time": 4.167818069458,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6350,
            "time": 6.1957631111145,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6678,
            "time": 4.663017988205,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 7006,
            "time": 3.0601751804352,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 7334,
            "time": 4.2370450496674,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 22542,
            "time": 4.1857311725616,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 30926,
            "time": 6.2858650684357,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "093c374a8066a753d4f249661b7585ff93700c7e1f19b82d407692f60baccea4",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "bb1984815523992bd1bad2260394368f220ef7a638dc444fb79bba09d8cac7d9",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandboxScreenshot from the sandboxScreenshot from the sandboxScreenshot from the sandbox

Hashes [?]

PropertyValue
MD5bce93ce46f19540a2aec5905333bdd35
SHA2569772c1f3c7fb325815b55d5bba65409340cdd47926e43c14c2c3473e90a099ea

Error Messages

These are some of the error messages that can appear related to nvda_slave.exe:

nvda_slave.exe has encountered a problem and needs to close. We are sorry for the inconvenience.

nvda_slave.exe - Application Error. The instruction at "0xXXXXXXXX" referenced memory at "0xXXXXXXXX". The memory could not be "read/written". Click on OK to terminate the program.

NVDA has stopped working.

End Program - nvda_slave.exe. This program is not responding.

nvda_slave.exe is not a valid Win32 application.

nvda_slave.exe - Application Error. The application failed to initialize properly (0xXXXXXXXX). Click OK to terminate the application.

What will you do with nvda_slave.exe?

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



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.

Please select the option that best describe your thoughts on the information provided on this web page


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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.

I'm reading all new comments so don't hesitate to post a question about the file. If I don't have the answer perhaps another user can help you.

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