What is RpcEpMap.dll?

RpcEpMap.dll is part of Microsoft® Windows® İşletim Sistemi and developed by Microsoft Corporation according to the RpcEpMap.dll version information.

RpcEpMap.dll's description is "RPC Bitiş Noktası Eşleştiricisi"

RpcEpMap.dll is digitally signed by Microsoft Windows.

RpcEpMap.dll is usually located in the 'C:\Windows\System32\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about RpcEpMap.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 RpcEpMap.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\\20042fa6280bc42fa10f585036e1945545ee1b99e141b469114686c065cffd73.bin.dll"
    ],
    "file_opened": [
        "C:\\Windows\\System32\\en-US\\KERNELBASE.dll.mui",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\20042fa6280bc42fa10f585036e1945545ee1b99e141b469114686c065cffd73.bin.dll"
    ],
    "command_line": [
        "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\20042fa6280bc42fa10f585036e1945545ee1b99e141b469114686c065cffd73.bin.dll,DllMain"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\20042fa6280bc42fa10f585036e1945545ee1b99e141b469114686c065cffd73.bin.dll.manifest",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\20042fa6280bc42fa10f585036e1945545ee1b99e141b469114686c065cffd73.bin.dll"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\20042fa6280bc42fa10f585036e1945545ee1b99e141b469114686c065cffd73.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": 2420,
        "summary": {
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\20042fa6280bc42fa10f585036e1945545ee1b99e141b469114686c065cffd73.bin.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\20042fa6280bc42fa10f585036e1945545ee1b99e141b469114686c065cffd73.bin.dll"
            ],
            "command_line": [
                "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\20042fa6280bc42fa10f585036e1945545ee1b99e141b469114686c065cffd73.bin.dll,DllMain"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\20042fa6280bc42fa10f585036e1945545ee1b99e141b469114686c065cffd73.bin.dll.manifest",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\20042fa6280bc42fa10f585036e1945545ee1b99e141b469114686c065cffd73.bin.dll"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\20042fa6280bc42fa10f585036e1945545ee1b99e141b469114686c065cffd73.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ]
        },
        "first_seen": 1566125585.6562,
        "ppid": 1268
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1566125585.3281,
        "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\\20042fa6280bc42fa10f585036e1945545ee1b99e141b469114686c065cffd73.bin.dll.manifest",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\20042fa6280bc42fa10f585036e1945545ee1b99e141b469114686c065cffd73.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\\20042fa6280bc42fa10f585036e1945545ee1b99e141b469114686c065cffd73.bin.dll"
            ]
        },
        "first_seen": 1566125585.8125,
        "ppid": 2420
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "RpcEpMap.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "The executable contains unknown PE section names indicative of a packer (could be a false positive)",
        "severity": 1,
        "marks": [
            {
                "category": "section",
                "ioc": ".didat",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_features"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "The file contains an unknown PE resource name possibly indicative of a packer",
        "severity": 1,
        "marks": [
            {
                "category": "resource name",
                "ioc": "MUI",
                "type": "ioc",
                "description": null
            },
            {
                "category": "resource name",
                "ioc": "WEVT_TEMPLATE",
                "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": 546,
            "time": 3.0667848587036,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5326,
            "time": 3.0032618045807,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5654,
            "time": 1.0168008804321,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5982,
            "time": 3.0107619762421,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6310,
            "time": 1.519889831543,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6638,
            "time": -0.10225820541382,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 6966,
            "time": 1.5467269420624,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 17912,
            "time": 1.0515367984772,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 26296,
            "time": 3.1170659065247,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "385452dd0ca948becfde2e58f327e467a74fcbb34bf755542fe3615fca80ba43",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "3e88028d440f1cd0fb48b4ea466303af7a30b746113d2277051835259df08db0",
    "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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