What is klwtp.sys?

klwtp.sys is part of Coretech Delivery and developed by AO Kaspersky Lab according to the klwtp.sys version information.

klwtp.sys's description is "WFP Network Connection Filter Driver [fre_win7_amd64]"

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

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

PropertyValue
Product nameCoretech Delivery
Company nameAO Kaspersky Lab
File descriptionWFP Network Connection Filter Driver [fre_win7_amd64]
Internal nameklwtp
Legal copyright© 2019 AO Kaspersky Lab. All Rights Reserved.
Legal trademarkRegistered trademarks and service marks are the property of their respective owners
Product version30.0.3731.0
File version30.0.3731.0

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

Product nameCoretech Delivery
Company nameAO Kaspersky Lab
File descriptionWFP Network Connection Filter Driver..
Internal nameklwtp
Legal copyright© 2019 AO Kaspersky Lab. All Rights..
Legal trademarkRegistered trademarks and service ma..
Product version30.0.3731.0
File version30.0.3731.0

Digital signatures [?]

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

PropertyValue
Signer nameKaspersky Lab
Certificate issuer nameDigiCert High Assurance Code Signing CA-1
Certificate serial number0f9d91c6aba86f4e54cbb9ef57e68346

VirusTotal report

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

None of the 71 anti-virus programs detected the klwtp.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": 1575255184.328125,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "C:\\a\\b\\a_7C6289E6_\\b\\out_x64\\Release\\si.kernel.klwtp\\klwtp.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": "The file contains an unknown PE resource name possibly indicative of a packer",
        "severity": 1,
        "marks": [
            {
                "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": "224.0.0.252",
            "offset": 982,
            "time": 1.033850908279419,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 1310,
            "time": 1.5355169773101807,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 1638,
            "time": -0.08597612380981445,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 1966,
            "time": 1.1038620471954346,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 7344,
            "time": 1.0668129920959473,
            "dport": 3702,
            "sport": 49152
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "7f169b9b714a0303ecf7ab5b0f6dcc7ae4b4dd710607760cee98956a9e231821",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "0e24cb37c06da472ab3b1c6cbd4c6ca45a2c317addda3d87c326ed7c727e950d",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandbox

Other files also named klwtp.sys

klwtp.sys (16 votes)

Hashes [?]

PropertyValue
MD5d31626bca50d69249ddd62dbee267e28
SHA256588c71f37176df997399273d4a93fd760656db83270bfa1a593adc3f97244408

What will you do with klwtp.sys?

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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


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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.

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