What is DSDFunctionKeyCtlService.exe?

DSDFunctionKeyCtlService.exe is part of dynabook Function Key control service and developed by Dynabook Inc. according to the DSDFunctionKeyCtlService.exe version information.

DSDFunctionKeyCtlService.exe's description is "dynabook Function Key control service"

DSDFunctionKeyCtlService.exe is digitally signed by Dynabook Inc..

DSDFunctionKeyCtlService.exe is usually located in the 'C:\Windows\System32\DriverStore\FileRepository\tossrvctl.inf_amd64_e3c09117ee62638d\' folder.

Some of the anti-virus scanners at VirusTotal detected DSDFunctionKeyCtlService.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 DSDFunctionKeyCtlService.exe:

PropertyValue
Product namedynabook Function Key control service
Company nameDynabook Inc.
File descriptiondynabook Function Key control service
Internal nameDSDFunctionKeyCtlService.exe
Original filenameDSDFunctionKeyCtlService.exe
Legal copyrightCopyright © 2019 Dynabook Inc. All rights reserved.
Product version1.0.0.0
File version1.0.1.12

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

Product namedynabook Function Key control service
Company nameDynabook Inc.
File descriptiondynabook Function Key control service
Internal nameDSDFunctionKeyCtlService.exe
Original filenameDSDFunctionKeyCtlService.exe
Legal copyrightCopyright © 2019 Dynabook Inc. All ..
Product version1.0.0.0
File version1.0.1.12

Digital signatures [?]

DSDFunctionKeyCtlService.exe has a valid digital signature.

PropertyValue
Signer nameDynabook Inc.
Certificate issuer nameSymantec Class 3 SHA256 Code Signing CA
Certificate serial number7a6d788082ad888a28797d03815cb962

VirusTotal report

1 of the 71 anti-virus programs at VirusTotal detected the DSDFunctionKeyCtlService.exe file. That's a 1% detection rate.

ScannerDetection Name
Jiangmin Downloader.AdLoad.zn
1 of the 71 anti-virus programs detected the DSDFunctionKeyCtlService.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\\DbgLog.ini"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1570715586.2969,
        "ppid": 376
    },
    {
        "process_path": "C:\\Users\\cuck\\AppData\\Local\\Temp\\dbef58e44ab48636ccd024f893cf60540e909ea9d420f577bbdd0aa7ecc36c91.bin",
        "process_name": "dbef58e44ab48636ccd024f893cf60540e909ea9d420f577bbdd0aa7ecc36c91.bin",
        "pid": 2308,
        "summary": {
            "file_failed": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\DbgLog.ini"
            ]
        },
        "first_seen": 1570715586.4844,
        "ppid": 3040
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "C:\\Users\\SCD\\Documents\\Visual Studio 2017\\Projects\\Project--dynabookFunctionKeyControlService\\dynabookSystemService_DevPC_dev\\x64\\Release\\DSDFunctionKeyCtlService.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    }
]

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": 3.116739988327,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "192.168.56.255",
            "offset": 5226,
            "time": 9.1880691051483,
            "dport": 138,
            "sport": 138
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 7070,
            "time": 3.033399105072,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 7398,
            "time": 1.02614402771,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 7726,
            "time": 3.0792059898376,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 8054,
            "time": 1.5356800556183,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 8382,
            "time": -0.098755836486816,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 8710,
            "time": 1.5470521450043,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 28120,
            "time": 1.0565941333771,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 36504,
            "time": 3.1253051757812,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "1a4ee49607c31cab8256360676aac4c07535392147d7a9031d490e4350c74bb1",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "9dc53baa1832efa23d3b2c8592d797c5c0426a5075f9f2b367bd0a7665e11c5b",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandboxScreenshot from the sandboxScreenshot from the sandbox

Hashes [?]

PropertyValue
MD59ffa14d42a33de7939bd4e9a6300dd2e
SHA256dbef58e44ab48636ccd024f893cf60540e909ea9d420f577bbdd0aa7ecc36c91

Error Messages

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

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

dsdfunctionkeyctlservice.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.

dynabook Function Key control service has stopped working.

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

dsdfunctionkeyctlservice.exe is not a valid Win32 application.

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

What will you do with the file?

To help other users, please let us know what you will do with the file:



What did other users do?

The poll result listed below shows what users chose to do with the file. 92% have voted for removal. Based on votes from 60 users.

User vote results: There were 55 votes to remove and 5 votes to keep

NOTE: Please do not use this poll as the only source of input to determine what you will do with the file.

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.

RpD writes

1 thumb

You should provide information on what exactly does DSDFunctionKeyCtlService.exe do???
Is there any info on DSDFunctionKeyCtlService.exe that suggests it could be malware?? Have any hackers substituted malware for the file DSDFunctionKeyCtlService.exe??
Dynabook is apparently Toshiba but you don't mention that... If I disable DSDFunctionKeyCtlService.exe, will that disable the "Function" key on my Toshiba laptop's keyboard???

# 11 Jun 2021, 6:56

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