What is gzfltdp.dll?

gzfltdp.dll is part of Bitdefender Security and developed by Bitdefender according to the gzfltdp.dll version information.

gzfltdp.dll's description is "BitDefender GzFltDp"

gzfltdp.dll is digitally signed by Bitdefender SRL.

gzfltdp.dll is usually located in the 'c:\users\%USERNAME%\appdata\local\temp\rarsfx0\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about gzfltdp.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 70 anti-virus programs at VirusTotal detected the gzfltdp.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\\3f9086bab36cf916f68626fba8a57d7079ee9023fe970e4a2962de48ab22c4d6.bin.dll"
    ],
    "file_opened": [
        "C:\\Windows\\System32\\en-US\\KERNELBASE.dll.mui",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\3f9086bab36cf916f68626fba8a57d7079ee9023fe970e4a2962de48ab22c4d6.bin.dll"
    ],
    "command_line": [
        "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\3f9086bab36cf916f68626fba8a57d7079ee9023fe970e4a2962de48ab22c4d6.bin.dll,DllMain"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\3f9086bab36cf916f68626fba8a57d7079ee9023fe970e4a2962de48ab22c4d6.bin.dll.manifest",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\3f9086bab36cf916f68626fba8a57d7079ee9023fe970e4a2962de48ab22c4d6.bin.dll"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\3f9086bab36cf916f68626fba8a57d7079ee9023fe970e4a2962de48ab22c4d6.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\\System32\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2968,
        "summary": {
            "file_opened": [
                "C:\\Windows\\System32\\en-US\\KERNELBASE.dll.mui"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\3f9086bab36cf916f68626fba8a57d7079ee9023fe970e4a2962de48ab22c4d6.bin.dll.manifest",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\3f9086bab36cf916f68626fba8a57d7079ee9023fe970e4a2962de48ab22c4d6.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\\3f9086bab36cf916f68626fba8a57d7079ee9023fe970e4a2962de48ab22c4d6.bin.dll"
            ]
        },
        "first_seen": 1576011185.859375,
        "ppid": 2436
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1576011185.34375,
        "ppid": 376
    },
    {
        "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2436,
        "summary": {
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\3f9086bab36cf916f68626fba8a57d7079ee9023fe970e4a2962de48ab22c4d6.bin.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\3f9086bab36cf916f68626fba8a57d7079ee9023fe970e4a2962de48ab22c4d6.bin.dll"
            ],
            "command_line": [
                "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\3f9086bab36cf916f68626fba8a57d7079ee9023fe970e4a2962de48ab22c4d6.bin.dll,DllMain"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\3f9086bab36cf916f68626fba8a57d7079ee9023fe970e4a2962de48ab22c4d6.bin.dll.manifest",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\3f9086bab36cf916f68626fba8a57d7079ee9023fe970e4a2962de48ab22c4d6.bin.dll"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\3f9086bab36cf916f68626fba8a57d7079ee9023fe970e4a2962de48ab22c4d6.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ]
        },
        "first_seen": 1576011185.671875,
        "ppid": 2736
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "D:\\Bamboo\\home\\xml-data\\build-dir\\CST-CSTVS2017-SOURCES\\bin\\x64\\Release\\gzfltdp.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    }
]

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": 662,
            "time": 6.187947988510132,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5190,
            "time": 6.144047021865845,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5518,
            "time": 4.1348490715026855,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5846,
            "time": 6.154194116592407,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6174,
            "time": 4.639693021774292,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6502,
            "time": 3.021054983139038,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 6830,
            "time": 4.651516914367676,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 16628,
            "time": 4.155863046646118,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 25012,
            "time": 6.245017051696777,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "6e37248186398aa7e51d1741594307c710bab3deb178a4eac118b4ba11430221",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "6acdd78c169b82a3c15fa9a2ea9e9332e52bdb2d4e1318d38c785422f749efd0",
    "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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