What is eufddisk.sys?

eufddisk.sys is part of EaseUS Todo Backup and developed by CHENGDU YIWO Tech Development Co., Ltd according to the eufddisk.sys version information.

eufddisk.sys's description is "Disk Backup Image Preview Driver"

eufddisk.sys is usually located in the 'c:\windows\system32\drivers\' folder.

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

Vendor and version information [?]

The following is the available information on eufddisk.sys:

PropertyValue
Product nameEaseUS Todo Backup
Company nameCHENGDU YIWO Tech Development Co., Ltd
File descriptionDisk Backup Image Preview Driver
Internal nameeufddisk.sys
Original filenameeufddisk.sys
Legal copyrightCopyright (C) 2005-2011 CHENGDU YIWO Tech Development Co., Ltd. All rights reserved.
Product version3.0.0.1
File version1.0.0.1

Here's a screenshot of the file properties when displayed by Windows Explorer:

Product nameEaseUS Todo Backup
Company nameCHENGDU YIWO Tech Development Co., Ltd
File descriptionDisk Backup Image Preview Driver
Internal nameeufddisk.sys
Original filenameeufddisk.sys
Legal copyrightCopyright (C) 2005-2011 CHENGDU YIWO..
Product version3.0.0.1
File version1.0.0.1

Digital signatures [?]

The verification of eufddisk.sys's digital signature failed.

PropertyValue
Signer nameCHENGDU YIWO Tech Development Co., Ltd.
Certificate issuer nameVeriSign Class 3 Code Signing 2010 CA
Certificate serial number33c34cca6e6816b62b677d44b06835e5

VirusTotal report

None of the 71 anti-virus programs at VirusTotal detected the eufddisk.sys file.

None of the 71 anti-virus programs detected the eufddisk.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": 1580896385.34375,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "e:\\tbnet\\tbnet\\Output\\sys\\fre_wxp_x86\\i386\\EuFdDisk.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"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "Foreign language identified in PE resource",
        "severity": 2,
        "marks": [
            {
                "name": "RT_VERSION",
                "language": "LANG_CHINESE",
                "offset": "0x0002ac60",
                "filetype": "data",
                "sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
                "type": "generic",
                "size": "0x000003b4"
            }
        ],
        "references": [],
        "name": "origin_langid"
    },
    {
        "markcount": 3,
        "families": [],
        "description": "The binary likely contains encrypted or compressed data indicative of a packer",
        "severity": 2,
        "marks": [
            {
                "entropy": 7.665116101298835,
                "section": {
                    "size_of_data": "0x00008f80",
                    "virtual_address": "0x0001eb00",
                    "entropy": 7.665116101298835,
                    "name": ".rdata",
                    "virtual_size": "0x00008f10"
                },
                "type": "generic",
                "description": "A section with a high entropy has been found"
            },
            {
                "entropy": 7.591326972699381,
                "section": {
                    "size_of_data": "0x00001280",
                    "virtual_address": "0x00027a80",
                    "entropy": 7.591326972699381,
                    "name": ".data",
                    "virtual_size": "0x00001278"
                },
                "type": "generic",
                "description": "A section with a high entropy has been found"
            },
            {
                "entropy": 0.23209169054441262,
                "type": "generic",
                "description": "Overall entropy of this PE file is high"
            }
        ],
        "references": [
            "http:\/\/www.forensickb.com\/2013\/03\/file-entropy-explained.html",
            "http:\/\/virii.es\/U\/Using%20Entropy%20Analysis%20to%20Find%20Encrypted%20and%20Packed%20Malware.pdf"
        ],
        "name": "packer_entropy"
    }
]

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": 826,
            "time": 4.114947080612183,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 1154,
            "time": 2.9783780574798584,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 1482,
            "time": 4.1479339599609375,
            "dport": 3702,
            "sport": 49152
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "83df05a3ea4fb787cac4bf0627f790fd9b64433a854f116b91c2b1d453bc8a10",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "ed2bf1a560a4421a4088159303316f90eea68773055c97a2dfa751421c1bed26",
    "irc": [],
    "https_ex": []
}

Hashes [?]

PropertyValue
MD5158cdfca5e2a8e91e503e43228f89125
SHA25649f4db724b567c8cdfd485e0bab91d517d51076f59ec2ac67840a9699a59b6c9

What will you do with eufddisk.sys?

To help other users, please let us know what you will do with eufddisk.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.

Please select the option that best describe your thoughts on the information provided on this web page


Free online surveys

And now some shameless self promotion ;)

A screenshot of FreeFixer's scan result.Hi, my name is Roger Karlsson. I've been running this website since 2006. I want to let you know about the FreeFixer program. FreeFixer is a freeware tool that analyzes your system and let you manually identify unwanted programs. Once you've identified some malware files, FreeFixer is pretty good at removing them. You can download FreeFixer here. It runs on Windows 2000/XP/2003/2008/2016/2019/Vista/7/8/8.1/10. Supports both 32- and 64-bit Windows.

If you have questions, feedback on FreeFixer or the freefixer.com website, need help analyzing FreeFixer's scan result or just want to say hello, please contact me. You can find my email address at the contact page.

Comments

Please share with the other users what you think about this file. What does this file do? Is it legitimate or something that your computer is better without? Do you know how it was installed on your system? Did you install it yourself or did it come bundled with some other software? Is it running smoothly or do you get some error message? Any information that will help to document this file is welcome. Thank you for your contributions.

I'm reading all new comments so don't hesitate to post a question about the file. If I don't have the answer perhaps another user can help you.

No comments posted yet.

Leave a reply