What is pmxShell.dll?

pmxShell.dll is part of PowerBroker for Windows and developed by BeyondTrust Software, Inc. according to the pmxShell.dll version information.

pmxShell.dll's description is "BeyondTrust PowerBroker for Windows Shell Extension"

pmxShell.dll is digitally signed by BeyondTrust Software Inc.

pmxShell.dll is usually located in the 'C:\Windows\system32\' folder.

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

PropertyValue
Product namePowerBroker for Windows
Company nameBeyondTrust Software, Inc.
File descriptionBeyondTrust PowerBroker for Windows Shell Extension
Internal namepmxshell.dll
Original filenamepmxshell.dll
Legal copyright© 2005-2018 BeyondTrust. All rights reserved.
Product version7.8.0.0
File version7.8.0.0

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

Product namePowerBroker for Windows
Company nameBeyondTrust Software, Inc.
File descriptionBeyondTrust PowerBroker for Windows ..
Internal namepmxshell.dll
Original filenamepmxshell.dll
Legal copyright© 2005-2018 BeyondTrust. All righ..
Product version7.8.0.0
File version7.8.0.0

Digital signatures [?]

pmxShell.dll has a valid digital signature.

PropertyValue
Signer nameBeyondTrust Software Inc
Certificate issuer nameVeriSign Class 3 Code Signing 2010 CA
Certificate serial number7368efe183cf77abcbdd1fe9df4aa8fb

VirusTotal report

None of the 70 anti-virus programs at VirusTotal detected the pmxShell.dll file.

None of the 70 anti-virus programs detected the pmxShell.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\\d42fa207494b98e191b5cffcd42e54af88c5d22f3562186266e3c6772cec79ef.bin.dll"
    ],
    "file_opened": [
        "C:\\Windows\\System32\\en-US\\KERNELBASE.dll.mui",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\d42fa207494b98e191b5cffcd42e54af88c5d22f3562186266e3c6772cec79ef.bin.dll"
    ],
    "command_line": [
        "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\d42fa207494b98e191b5cffcd42e54af88c5d22f3562186266e3c6772cec79ef.bin.dll,DllMain"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\d42fa207494b98e191b5cffcd42e54af88c5d22f3562186266e3c6772cec79ef.bin.dll",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\d42fa207494b98e191b5cffcd42e54af88c5d22f3562186266e3c6772cec79ef.bin.dll.manifest"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\d42fa207494b98e191b5cffcd42e54af88c5d22f3562186266e3c6772cec79ef.bin.dll"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\Windows Error Reporting\\WMR\\Disable",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2816,
        "summary": {
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\d42fa207494b98e191b5cffcd42e54af88c5d22f3562186266e3c6772cec79ef.bin.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\d42fa207494b98e191b5cffcd42e54af88c5d22f3562186266e3c6772cec79ef.bin.dll"
            ],
            "command_line": [
                "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\d42fa207494b98e191b5cffcd42e54af88c5d22f3562186266e3c6772cec79ef.bin.dll,DllMain"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\d42fa207494b98e191b5cffcd42e54af88c5d22f3562186266e3c6772cec79ef.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\d42fa207494b98e191b5cffcd42e54af88c5d22f3562186266e3c6772cec79ef.bin.dll.manifest"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\d42fa207494b98e191b5cffcd42e54af88c5d22f3562186266e3c6772cec79ef.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ]
        },
        "first_seen": 1577562785.640625,
        "ppid": 2016
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1577562785.328125,
        "ppid": 376
    },
    {
        "process_path": "C:\\Windows\\System32\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2588,
        "summary": {
            "file_opened": [
                "C:\\Windows\\System32\\en-US\\KERNELBASE.dll.mui"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\d42fa207494b98e191b5cffcd42e54af88c5d22f3562186266e3c6772cec79ef.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\d42fa207494b98e191b5cffcd42e54af88c5d22f3562186266e3c6772cec79ef.bin.dll.manifest"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\Windows Error Reporting\\WMR\\Disable",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ],
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\d42fa207494b98e191b5cffcd42e54af88c5d22f3562186266e3c6772cec79ef.bin.dll"
            ]
        },
        "first_seen": 1577562785.84375,
        "ppid": 2816
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "D:\\TFSBuild\\Bingie\\Main\\cpp\\x64\\Release\\pmxshell.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": "REGISTRY",
                "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": 6.175343990325928,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5442,
            "time": 6.1113739013671875,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5770,
            "time": 4.14078688621521,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6098,
            "time": 6.118917942047119,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6426,
            "time": 4.642781972885132,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6754,
            "time": 3.0203869342803955,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 7082,
            "time": 4.6560328006744385,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 16880,
            "time": 4.170864820480347,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 25264,
            "time": 6.2254509925842285,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "d6133ec3cc2d98af214e4073492bfbce1ba90cd2f994fe0f25492fd0a2250b43",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "528239bd3af036196bde936cb0a8289b62105fd87e0f61e1a0c2e42e480be609",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandboxScreenshot from the sandbox

Hashes [?]

PropertyValue
MD5788bec5df97de77cad0ea48818e2b29d
SHA256d42fa207494b98e191b5cffcd42e54af88c5d22f3562186266e3c6772cec79ef

What will you do with pmxShell.dll?

To help other users, please let us know what you will do with pmxShell.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.

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


Free online surveys

And now some shameless self promotion ;)

A screenshot of FreeFixer's scan result.Hi, my name is Roger Karlsson. I've been running this website since 2006. I want to let you know about the FreeFixer program. FreeFixer is a freeware tool that analyzes your system and let you manually identify unwanted programs. Once you've identified some malware files, FreeFixer is pretty good at removing them. You can download FreeFixer here. It runs on Windows 2000/XP/2003/2008/2016/2019/Vista/7/8/8.1/10. Supports both 32- and 64-bit Windows.

If you have questions, feedback on FreeFixer or the freefixer.com website, need help analyzing FreeFixer's scan result or just want to say hello, please contact me. You can find my email address at the contact page.

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.

No comments posted yet.

Leave a reply