What is mbshlext.dll?

mbshlext.dll is developed by Malwarebytes according to the mbshlext.dll version information.

mbshlext.dll's description is "Malwarebytes"

mbshlext.dll is digitally signed by Malwarebytes Corporation.

mbshlext.dll is usually located in the 'C:\Program Files\Malwarebytes\Anti-Malware\' folder.

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

PropertyValue
Company nameMalwarebytes
File descriptionMalwarebytes
Internal namembamext.dll
Original filenamembamext.dll
Legal copyright(c) Malwarebytes. All rights reserved.
File version3.0.0.79

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

Company nameMalwarebytes
File descriptionMalwarebytes
Internal namembamext.dll
Original filenamembamext.dll
Legal copyright(c) Malwarebytes. All rights reserved.
File version3.0.0.79

Digital signatures [?]

mbshlext.dll has a valid digital signature.

PropertyValue
Signer nameMalwarebytes Corporation
Certificate issuer nameDigiCert Assured ID Code Signing CA-1
Certificate serial number044e3bf58976880ffd074448a8f7a058

VirusTotal report

None of the 67 anti-virus programs at VirusTotal detected the mbshlext.dll file.

None of the 67 anti-virus programs detected the mbshlext.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\\94a820e238024dc5c65785b37141020078eed9b170be4389f085577637b538df.bin.dll",
        "kernel32"
    ],
    "file_opened": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\94a820e238024dc5c65785b37141020078eed9b170be4389f085577637b538df.bin.dll"
    ],
    "command_line": [
        "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\94a820e238024dc5c65785b37141020078eed9b170be4389f085577637b538df.bin.dll,DllMain"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\94a820e238024dc5c65785b37141020078eed9b170be4389f085577637b538df.bin.dll",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\94a820e238024dc5c65785b37141020078eed9b170be4389f085577637b538df.bin.dll.manifest"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\94a820e238024dc5c65785b37141020078eed9b170be4389f085577637b538df.bin.dll"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
        "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\services\\crypt32\\DebugHeapFlags"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\System32\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2588,
        "summary": {
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\94a820e238024dc5c65785b37141020078eed9b170be4389f085577637b538df.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\94a820e238024dc5c65785b37141020078eed9b170be4389f085577637b538df.bin.dll.manifest"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
                "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\services\\crypt32\\DebugHeapFlags"
            ],
            "dll_loaded": [
                "kernel32",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\94a820e238024dc5c65785b37141020078eed9b170be4389f085577637b538df.bin.dll"
            ]
        },
        "first_seen": 1568263990.8438,
        "ppid": 2308
    },
    {
        "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2308,
        "summary": {
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\94a820e238024dc5c65785b37141020078eed9b170be4389f085577637b538df.bin.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\94a820e238024dc5c65785b37141020078eed9b170be4389f085577637b538df.bin.dll"
            ],
            "command_line": [
                "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\94a820e238024dc5c65785b37141020078eed9b170be4389f085577637b538df.bin.dll,DllMain"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\94a820e238024dc5c65785b37141020078eed9b170be4389f085577637b538df.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\94a820e238024dc5c65785b37141020078eed9b170be4389f085577637b538df.bin.dll.manifest"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\94a820e238024dc5c65785b37141020078eed9b170be4389f085577637b538df.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ]
        },
        "first_seen": 1568263990.6562,
        "ppid": 2448
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1568263990.375,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "d:\\jenkins\\workspace\\N_MBAM_ContextMenu\\bin\\x64\\Release\\mbshlext.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 2,
        "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
            },
            {
                "category": "resource name",
                "ioc": "TYPELIB",
                "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": 6.2106890678406,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5442,
            "time": 6.1731970310211,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5770,
            "time": 4.1572980880737,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6098,
            "time": 6.1837561130524,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6426,
            "time": 4.7457900047302,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6754,
            "time": 3.0552968978882,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 7082,
            "time": 4.7039959430695,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 16880,
            "time": 4.1874780654907,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 25264,
            "time": 6.273766040802,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "7cde10dfd7915b58cc2f31697a6c9ed8cce61ff63788ad3097ee6e89c13dbd00",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "70751f7b9f6b0a7bd4700130bdcf6e7da2f7dada8ce2a6b2a4ec04e76017bd3b",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandboxScreenshot from the sandbox

Other files also named mbshlext.dll

mbshlext.dll (58 votes)

Hashes [?]

PropertyValue
MD5439e2f41cc91de42214d5ca2ea69ecd1
SHA25694a820e238024dc5c65785b37141020078eed9b170be4389f085577637b538df

What will you do with mbshlext.dll?

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Malware or legitimate?

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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.

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