What is custody.dll?

custody.dll is part of Avast Antivirus and developed by AVAST Software according to the custody.dll version information.

custody.dll's description is "Avast Cyber-Capture library"

custody.dll is digitally signed by Avast Software s.r.o..

custody.dll is usually located in the 'C:\Program Files\Avast Software\Avast\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about custody.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 71 anti-virus programs at VirusTotal detected the custody.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\\9db6c817257e1c951bbf0c3c07fde8c115bc6bb51ff82ea7b8b6fc31f231be35.bin.dll"
    ],
    "file_opened": [
        "C:\\Windows\\System32\\en-US\\KERNELBASE.dll.mui",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\9db6c817257e1c951bbf0c3c07fde8c115bc6bb51ff82ea7b8b6fc31f231be35.bin.dll"
    ],
    "command_line": [
        "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\9db6c817257e1c951bbf0c3c07fde8c115bc6bb51ff82ea7b8b6fc31f231be35.bin.dll,DllMain"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\9db6c817257e1c951bbf0c3c07fde8c115bc6bb51ff82ea7b8b6fc31f231be35.bin.dll.manifest",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\9db6c817257e1c951bbf0c3c07fde8c115bc6bb51ff82ea7b8b6fc31f231be35.bin.dll"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\9db6c817257e1c951bbf0c3c07fde8c115bc6bb51ff82ea7b8b6fc31f231be35.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\\System32\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2968,
        "summary": {
            "file_opened": [
                "C:\\Windows\\System32\\en-US\\KERNELBASE.dll.mui"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\9db6c817257e1c951bbf0c3c07fde8c115bc6bb51ff82ea7b8b6fc31f231be35.bin.dll.manifest",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\9db6c817257e1c951bbf0c3c07fde8c115bc6bb51ff82ea7b8b6fc31f231be35.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"
            ],
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\9db6c817257e1c951bbf0c3c07fde8c115bc6bb51ff82ea7b8b6fc31f231be35.bin.dll"
            ]
        },
        "first_seen": 1589417589.96875,
        "ppid": 2816
    },
    {
        "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2816,
        "summary": {
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\9db6c817257e1c951bbf0c3c07fde8c115bc6bb51ff82ea7b8b6fc31f231be35.bin.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\9db6c817257e1c951bbf0c3c07fde8c115bc6bb51ff82ea7b8b6fc31f231be35.bin.dll"
            ],
            "command_line": [
                "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\9db6c817257e1c951bbf0c3c07fde8c115bc6bb51ff82ea7b8b6fc31f231be35.bin.dll,DllMain"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\9db6c817257e1c951bbf0c3c07fde8c115bc6bb51ff82ea7b8b6fc31f231be35.bin.dll.manifest",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\9db6c817257e1c951bbf0c3c07fde8c115bc6bb51ff82ea7b8b6fc31f231be35.bin.dll"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\9db6c817257e1c951bbf0c3c07fde8c115bc6bb51ff82ea7b8b6fc31f231be35.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ]
        },
        "first_seen": 1589417589.75,
        "ppid": 2016
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1589417589.34375,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "D:\\work\\e0dd96435fde7cb0\\BUILDS\\Release\\x64\\custody.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": 6.133706092834473,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5442,
            "time": 6.0695459842681885,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5770,
            "time": 4.155848026275635,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6098,
            "time": 6.077111005783081,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6426,
            "time": 4.661003112792969,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6754,
            "time": 2.9708399772644043,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 7082,
            "time": 4.676051139831543,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 16880,
            "time": 4.179784059524536,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 25264,
            "time": 6.184321165084839,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "6d358aff10d58ddf82f1628b5784a0665b003d23f4a43bdac85c34b11cebab79",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "906a1b49fe16d7b0fd39ae2cf8ef5080f827e8d6e8e4f2b1cf4f3c8ee1831fbb",
    "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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