What is cbfsconnectNetRdr2017.dll?

cbfsconnectNetRdr2017.dll is part of CBFS Connect and developed by Callback Technologies, Inc. according to the cbfsconnectNetRdr2017.dll version information.

cbfsconnectNetRdr2017.dll's description is "CBFS Connect Network Redirector"

cbfsconnectNetRdr2017.dll is digitally signed by Callback Technologies, Inc..

cbfsconnectNetRdr2017.dll is usually located in the 'C:\WINDOWS\system32\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about cbfsconnectNetRdr2017.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 cbfsconnectNetRdr2017.dll:

PropertyValue
Product nameCBFS Connect
Company nameCallback Technologies, Inc.
File descriptionCBFS Connect Network Redirector
Internal nameVSNetRdr
Original filenameCBFSConnectNetRdr7.dll
Legal copyrightCopyright (c) 2017-2018, Callback Technologies, Inc.
Product version2017, 0, 10, 0
File version2017, 0, 10, 36

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

Product nameCBFS Connect
Company nameCallback Technologies, Inc.
File descriptionCBFS Connect Network Redirector
Internal nameVSNetRdr
Original filenameCBFSConnectNetRdr7.dll
Legal copyrightCopyright (c) 2017-2018, Callback Te..
Product version2017, 0, 10, 0
File version2017, 0, 10, 36

Digital signatures [?]

cbfsconnectNetRdr2017.dll has a valid digital signature.

PropertyValue
Signer nameCallback Technologies, Inc.
Certificate issuer nameDigiCert EV Code Signing CA
Certificate serial number07288f549fdb4deb290d5b9a43ea2105

VirusTotal report

None of the 65 anti-virus programs at VirusTotal detected the cbfsconnectNetRdr2017.dll file.

None of the 65 anti-virus programs detected the cbfsconnectNetRdr2017.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\\12d47de396109dd0d8c4a81795ebbefefc84e4428d952692d3fc8ed88fde9b0a.bin.dll"
    ],
    "file_opened": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\12d47de396109dd0d8c4a81795ebbefefc84e4428d952692d3fc8ed88fde9b0a.bin.dll"
    ],
    "regkey_opened": [
        "HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\12d47de396109dd0d8c4a81795ebbefefc84e4428d952692d3fc8ed88fde9b0a.bin.dll",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\12d47de396109dd0d8c4a81795ebbefefc84e4428d952692d3fc8ed88fde9b0a.bin.dll.manifest"
    ],
    "command_line": [
        "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\12d47de396109dd0d8c4a81795ebbefefc84e4428d952692d3fc8ed88fde9b0a.bin.dll,DllMain"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\12d47de396109dd0d8c4a81795ebbefefc84e4428d952692d3fc8ed88fde9b0a.bin.dll"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\System32\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2968,
        "summary": {
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\12d47de396109dd0d8c4a81795ebbefefc84e4428d952692d3fc8ed88fde9b0a.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\12d47de396109dd0d8c4a81795ebbefefc84e4428d952692d3fc8ed88fde9b0a.bin.dll.manifest"
            ],
            "regkey_opened": [
                "HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ],
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\12d47de396109dd0d8c4a81795ebbefefc84e4428d952692d3fc8ed88fde9b0a.bin.dll"
            ]
        },
        "first_seen": 1598968386.921875,
        "ppid": 2816
    },
    {
        "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2816,
        "summary": {
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\12d47de396109dd0d8c4a81795ebbefefc84e4428d952692d3fc8ed88fde9b0a.bin.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\12d47de396109dd0d8c4a81795ebbefefc84e4428d952692d3fc8ed88fde9b0a.bin.dll"
            ],
            "command_line": [
                "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\12d47de396109dd0d8c4a81795ebbefefc84e4428d952692d3fc8ed88fde9b0a.bin.dll,DllMain"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\12d47de396109dd0d8c4a81795ebbefefc84e4428d952692d3fc8ed88fde9b0a.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\12d47de396109dd0d8c4a81795ebbefefc84e4428d952692d3fc8ed88fde9b0a.bin.dll.manifest"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\12d47de396109dd0d8c4a81795ebbefefc84e4428d952692d3fc8ed88fde9b0a.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ]
        },
        "first_seen": 1598968386.75,
        "ppid": 2016
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1598968386.328125,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "c:\\Projects\\CBFSConnect\\umode\\NetRdr\\x64\\Release\\CBFSConnectNetRdr2017.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": 662,
            "time": 6.224017858505249,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5190,
            "time": 6.160037994384766,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5518,
            "time": 4.162824869155884,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5846,
            "time": 6.167367935180664,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6174,
            "time": 4.668059825897217,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6502,
            "time": 3.0522618293762207,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 6830,
            "time": 4.71386194229126,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 15512,
            "time": 4.207047939300537,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 19704,
            "time": 6.2432239055633545,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "02c8757b68bf837dd007644b57010d695e77f1447e48eba665111be72c02d507",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "d42ada1656667cc9e906e24f0b9a112db65a98b94b23faf28b44e501ebcb7d0a",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandboxScreenshot from the sandbox

Folder name variants

cbfsconnectNetRdr2017.dll may also be located in other folders than C:\WINDOWS\system32\. The most common variants are listed below:

Hashes [?]

PropertyValue
MD54f2edc7aa3a5ef08d1f10f9e6006184a
SHA25612d47de396109dd0d8c4a81795ebbefefc84e4428d952692d3fc8ed88fde9b0a

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. 75% have voted for removal. Based on votes from 4 users.

User vote results: There were 3 votes to remove and 1 vote to keep

NOTE: Please do not use this poll as the only source of input to determine what you will do with the file. Only 4 users has voted so far so it does not offer a high degree of confidence.

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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