What is xaudio64.sys?

xaudio64.sys is part of SoftK56 Modem Driver and developed by Conexant Systems, Inc. according to the xaudio64.sys version information.

xaudio64.sys's description is "Modem Audio Device Driver"

xaudio64.sys is digitally signed by Microsoft Windows Hardware Compatibility Publisher.

xaudio64.sys is usually located in the 'C:\WINDOWS\system32\drivers\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about xaudio64.sys.

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 xaudio64.sys:

PropertyValue
Product nameSoftK56 Modem Driver
Company nameConexant Systems, Inc.
File descriptionModem Audio Device Driver
Internal namexaudio.sys
Original filenamexaudio.sys
Legal copyrightCopyright© Conexant Systems, Inc. 2006-2008
Product version1.00.22.00
File version1.00.22.00 built by: WinDDK

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

Product nameSoftK56 Modem Driver
Company nameConexant Systems, Inc.
File descriptionModem Audio Device Driver
Internal namexaudio.sys
Original filenamexaudio.sys
Legal copyrightCopyright© Conexant Systems, Inc. 2..
Product version1.00.22.00
File version1.00.22.00 built by: WinDDK

Digital signatures [?]

xaudio64.sys has a valid digital signature.

PropertyValue
Signer nameMicrosoft Windows Hardware Compatibility Publisher
Certificate issuer nameMicrosoft Windows Third Party Component CA 2012
Certificate serial number330000002d4e7aec99b0f05f7300000000002d

VirusTotal report

None of the 69 anti-virus programs at VirusTotal detected the xaudio64.sys file.

None of the 69 anti-virus programs detected the xaudio64.sys file.

Sandbox Report

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

Summary

ERROR: Failed to execute process.

Generic

[
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1575417183.34375,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "c:\\xaudio\\driver\\objfre_wlh_amd64\\amd64\\XAudio64.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "The executable contains unknown PE section names indicative of a packer (could be a false positive)",
        "severity": 1,
        "marks": [
            {
                "category": "section",
                "ioc": "PAGE",
                "type": "ioc",
                "description": null
            },
            {
                "category": "section",
                "ioc": "INIT",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_features"
    }
]

Yara

The Yara rules did not detect anything in the file.

Network

{
    "tls": [],
    "udp": [
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 982,
            "time": 1.015491008758545,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 1310,
            "time": 1.5252740383148193,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 1638,
            "time": -0.09717679023742676,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 1966,
            "time": 1.5355939865112305,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 4178,
            "time": 1.0364360809326172,
            "dport": 3702,
            "sport": 49152
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "833d24a5537c3cb5526d06be1b01acb49085a374ef9038c4e34e0444ae6f6212",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "f2d2f2714f506649a75b742293858daa205f7be6a95dcf3a00cc95b2922c73bb",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandbox

Hashes [?]

PropertyValue
MD5b2d74557a880777151a9957b6c384679
SHA256e3a243fb748de51375ae1bf96b9b22690d6962745375f4f86efb74ed23348dc6

What will you do with xaudio64.sys?

To help other users, please let us know what you will do with xaudio64.sys:



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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