What is smartdefragdriver.sys?

smartdefragdriver.sys is part of SmartDefrag and developed by IObit according to the smartdefragdriver.sys version information.

smartdefragdriver.sys's description is "SmartDefrag Driver"

smartdefragdriver.sys is digitally signed by IObit Information Technology.

smartdefragdriver.sys is usually located in the 'C:\WINDOWS\system32\drivers\' folder.

Some of the anti-virus scanners at VirusTotal detected smartdefragdriver.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

2 of the 71 anti-virus programs at VirusTotal detected the smartdefragdriver.sys file. That's a 3% detection rate.

Scanner	Detection Name
DrWeb	Program.Unwanted.1483
eGambit	PUP.Optional.IObit

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": 1564167184.3438,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "d:\\projects\\rarelyused\\smartdefrag\\pagefiledriver\\objfre_wxp_x86\\i386\\SmartDefragDriver.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": "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": 826,
            "time": 4.1768388748169,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 1154,
            "time": 3.0364859104156,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 1482,
            "time": 4.1977088451385,
            "dport": 3702,
            "sport": 49152
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "676a80972dc835e444e391a52f19c5b1ac2da736e99581533e9ef909ad6534da",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "7b37c723a501493d66cbe348c1a40e02baf4a36cef9ca9113657377a6695802e",
    "irc": [],
    "https_ex": []
}

smartdefragdriver.sys removal instructions

The instructions below shows how to remove smartdefragdriver.sys with help from the FreeFixer removal tool. Basically, you install FreeFixer, scan your computer, check the smartdefragdriver.sys file for removal, restart your computer and scan it again to verify that smartdefragdriver.sys has been successfully removed. Here are the removal instructions in more detail:

1. Download and install FreeFixer: http://www.freefixer.com/download.html
2. Start FreeFixer and press the Start Scan button. The scan will finish in approximately five minutes.

   
3. When the scan is finished, locate smartdefragdriver.sys in the scan result and tick the checkbox next to the smartdefragdriver.sys file. Do not check any other file for removal unless you are 100% sure you want to delete it. Tip: Press CTRL-F to open up FreeFixer's search dialog to quickly locate smartdefragdriver.sys in the scan result.

   

   

   C:\WINDOWS\system32\drivers\smartdefragdriver.sys

   
4. Scroll down to the bottom of the scan result and press the Fix button. FreeFixer will now delete the smartdefragdriver.sys file.

   
5. Restart your computer.
6. Start FreeFixer and scan your computer again. If smartdefragdriver.sys still remains in the scan result, proceed with the next step. If smartdefragdriver.sys is gone from the scan result you're done.
7. If smartdefragdriver.sys still remains in the scan result, check its checkbox again in the scan result and click Fix.
8. Restart your computer.
9. Start FreeFixer and scan your computer again. Verify that smartdefragdriver.sys no longer appear in the scan result.

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