What is CustomMarshalers.ni.dll?

CustomMarshalers.ni.dll is part of Microsoft® .NET Framework and developed by Microsoft Corporation according to the CustomMarshalers.ni.dll version information.

CustomMarshalers.ni.dll's description is "Microsoft .NET Framework Custom Marshalers"

CustomMarshalers.ni.dll is usually located in the 'c:\Windows\assembly\NativeImages_v4.0.30319_32\CustomMarshalers\5a85012d146780cc806d0e9ac12db5c8\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about CustomMarshalers.ni.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.

VirusTotal report

None of the 69 anti-virus programs at VirusTotal detected the CustomMarshalers.ni.dll file.

Sandbox Report

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

Summary

Successfully executed process in sandbox.

Summary

{
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\3eba69fafc23c01a8038220e9a688efefccd8e77763d7be7f443c34de503f641.bin.dll",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\3eba69fafc23c01a8038220e9a688efefccd8e77763d7be7f443c34de503f641.bin.dll.manifest"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
    ],
    "dll_loaded": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\3eba69fafc23c01a8038220e9a688efefccd8e77763d7be7f443c34de503f641.bin.dll"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1568289184.3281,
        "ppid": 376
    },
    {
        "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2436,
        "summary": {
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\3eba69fafc23c01a8038220e9a688efefccd8e77763d7be7f443c34de503f641.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\3eba69fafc23c01a8038220e9a688efefccd8e77763d7be7f443c34de503f641.bin.dll.manifest"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ],
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\3eba69fafc23c01a8038220e9a688efefccd8e77763d7be7f443c34de503f641.bin.dll"
            ]
        },
        "first_seen": 1568289184.6719,
        "ppid": 2736
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "CustomMarshalers.ni.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": 3.0783531665802,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 3346,
            "time": 3.018846988678,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 3674,
            "time": 1.0138449668884,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 4002,
            "time": 3.0282611846924,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 4330,
            "time": 1.5199220180511,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 4658,
            "time": -0.099278926849365,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 4986,
            "time": 1.0346930027008,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 12444,
            "time": 1.0349621772766,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 16636,
            "time": 3.1256949901581,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "b7a9e7a6c74a0c6a15415bb3e0d3de771938be7871c167ab4e0805607a9bc53c",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "f304e45c14a8585cae32e73a1e0fd8736f98edde88cfa5cb105fab53a50f3f97",
    "irc": [],
    "https_ex": []
}

Screenshots

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.

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