What is wpcap.dll?

wpcap.dll is part of WinPcap and developed by Riverbed Technology, Inc. according to the wpcap.dll version information.

wpcap.dll's description is "wpcap.dll Dynamic Link Library - based on libpcap 1.0rel0b branch (20091008)"

wpcap.dll is digitally signed by Riverbed Technology, Inc..

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

None of the anti-virus scanners at VirusTotal reports anything malicious about wpcap.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 64 anti-virus programs at VirusTotal detected the wpcap.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\\35aab6caaaf1720a4d888ae0de9e2a8e19604f3ea0e4dd882c3eeae4f39af117.bin.dll"
    ],
    "file_opened": [
        "C:\\Windows\\System32\\en-US\\KERNELBASE.dll.mui",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\35aab6caaaf1720a4d888ae0de9e2a8e19604f3ea0e4dd882c3eeae4f39af117.bin.dll"
    ],
    "command_line": [
        "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\35aab6caaaf1720a4d888ae0de9e2a8e19604f3ea0e4dd882c3eeae4f39af117.bin.dll,DllMain"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\35aab6caaaf1720a4d888ae0de9e2a8e19604f3ea0e4dd882c3eeae4f39af117.bin.dll.manifest",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\35aab6caaaf1720a4d888ae0de9e2a8e19604f3ea0e4dd882c3eeae4f39af117.bin.dll"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\35aab6caaaf1720a4d888ae0de9e2a8e19604f3ea0e4dd882c3eeae4f39af117.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\\35aab6caaaf1720a4d888ae0de9e2a8e19604f3ea0e4dd882c3eeae4f39af117.bin.dll.manifest",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\35aab6caaaf1720a4d888ae0de9e2a8e19604f3ea0e4dd882c3eeae4f39af117.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\\35aab6caaaf1720a4d888ae0de9e2a8e19604f3ea0e4dd882c3eeae4f39af117.bin.dll"
            ]
        },
        "first_seen": 1599763989.84375,
        "ppid": 2816
    },
    {
        "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2816,
        "summary": {
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\35aab6caaaf1720a4d888ae0de9e2a8e19604f3ea0e4dd882c3eeae4f39af117.bin.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\35aab6caaaf1720a4d888ae0de9e2a8e19604f3ea0e4dd882c3eeae4f39af117.bin.dll"
            ],
            "command_line": [
                "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\35aab6caaaf1720a4d888ae0de9e2a8e19604f3ea0e4dd882c3eeae4f39af117.bin.dll,DllMain"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\35aab6caaaf1720a4d888ae0de9e2a8e19604f3ea0e4dd882c3eeae4f39af117.bin.dll.manifest",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\35aab6caaaf1720a4d888ae0de9e2a8e19604f3ea0e4dd882c3eeae4f39af117.bin.dll"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\35aab6caaaf1720a4d888ae0de9e2a8e19604f3ea0e4dd882c3eeae4f39af117.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ]
        },
        "first_seen": 1599763989.671875,
        "ppid": 2016
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1599763989.328125,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "c:\\releases\\winpcap_4_1_3\\winpcap\\wpcap\\PRJ\\Release\\x64\\wpcap.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": 3.0548229217529297,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5326,
            "time": 2.995313882827759,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5654,
            "time": 1.0427210330963135,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5982,
            "time": 3.0042450428009033,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6310,
            "time": 1.5493578910827637,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6638,
            "time": -0.09877300262451172,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 6966,
            "time": 1.5803539752960205,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 16764,
            "time": 1.0818688869476318,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 25148,
            "time": 3.0704498291015625,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "57d538c4b21ae1b966b5eecfe51da3a5a8f92d0822946254e1962f0d5afb497d",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "b2c5cd79bd409a617f1651d5041348743ea44dde32c4b47df62dc08dd5d33fd6",
    "irc": [],
    "https_ex": []
}

Screenshots

Folder name variants

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

• c:\Windows\Temp\DRSUnzipTemp\sdk\NPF\x64\

Other files also named wpcap.dll

wpcap.dll (11 votes)

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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