What is epmvolfl.sys?

epmvolfl.sys is part of Windows (R) Codename Longhorn DDK driver and developed by Windows (R) Codename Longhorn DDK provider according to the epmvolfl.sys version information.

epmvolfl.sys's description is "Disk Performance Driver"

epmvolfl.sys is digitally signed by CHENGDU YIWO Tech Development Co., Ltd..

epmvolfl.sys is usually located in the 'C:\Windows\system32\drivers\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about epmvolfl.sys.

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 72 anti-virus programs at VirusTotal detected the epmvolfl.sys file.

Sandbox Report

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

Summary

ERROR: Failed to execute process.

Generic

[
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1564192385.3281,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "d:\\epm\\epm12.10_release\\drivers\\epmvolflt\\objfre_wlh_amd64\\amd64\\EPMVolFlt.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "The executable contains unknown PE section names indicative of a packer (could be a false positive)",
        "severity": 1,
        "marks": [
            {
                "category": "section",
                "ioc": "PAGE",
                "type": "ioc",
                "description": null
            },
            {
                "category": "section",
                "ioc": "INIT",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_features"
    }
]

Yara

The Yara rules did not detect anything in the file.

Network

{
    "tls": [],
    "udp": [
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 710,
            "time": 1.0196869373322,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 1038,
            "time": -0.089644193649292,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 1366,
            "time": 1.040198802948,
            "dport": 3702,
            "sport": 49152
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "3f8f86cf1c48b98af8787731ccf89408b6d64a27c5de66b4eae56ea4d9a4de77",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "3c837f002f5c700560297ee9bc66c1caae727c35867ae96ffc61500980547ab3",
    "irc": [],
    "https_ex": []
}

What did other users do?

The poll result listed below shows what users chose to do with epmvolfl.sys. 70% have voted for removal. Based on votes from 20 users.

NOTE: Please do not use this poll as the only source of input to determine what you will do with epmvolfl.sys.

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.

And now some shameless self promotion ;)

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