What is bdshellext.dll?

bdshellext.dll is part of Bitdefender 2020 and developed by Bitdefender according to the bdshellext.dll version information.

bdshellext.dll's description is "BdShellExtensions Module"

bdshellext.dll is digitally signed by Bitdefender SRL.

bdshellext.dll is usually located in the 'C:\Program Files\Bitdefender\Bitdefender Security\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about bdshellext.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 bdshellext.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": [
        "kernel32",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\a71960516f40e034e5b7ebb8dcc46e398d101ce3563a9cfa22e685a6ff17cc7d.bin.dll"
    ],
    "file_opened": [
        "C:\\Windows\\System32\\en-US\\KERNELBASE.dll.mui",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\a71960516f40e034e5b7ebb8dcc46e398d101ce3563a9cfa22e685a6ff17cc7d.bin.dll"
    ],
    "command_line": [
        "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\a71960516f40e034e5b7ebb8dcc46e398d101ce3563a9cfa22e685a6ff17cc7d.bin.dll,DllMain"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\a71960516f40e034e5b7ebb8dcc46e398d101ce3563a9cfa22e685a6ff17cc7d.bin.dll",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\a71960516f40e034e5b7ebb8dcc46e398d101ce3563a9cfa22e685a6ff17cc7d.bin.dll.manifest"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\a71960516f40e034e5b7ebb8dcc46e398d101ce3563a9cfa22e685a6ff17cc7d.bin.dll"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorSystemHeapIsPrivate",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorUseSystemHeap",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\Windows Error Reporting\\WMR\\Disable"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 1664,
        "summary": {
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\a71960516f40e034e5b7ebb8dcc46e398d101ce3563a9cfa22e685a6ff17cc7d.bin.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\a71960516f40e034e5b7ebb8dcc46e398d101ce3563a9cfa22e685a6ff17cc7d.bin.dll"
            ],
            "command_line": [
                "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\a71960516f40e034e5b7ebb8dcc46e398d101ce3563a9cfa22e685a6ff17cc7d.bin.dll,DllMain"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\a71960516f40e034e5b7ebb8dcc46e398d101ce3563a9cfa22e685a6ff17cc7d.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\a71960516f40e034e5b7ebb8dcc46e398d101ce3563a9cfa22e685a6ff17cc7d.bin.dll.manifest"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\a71960516f40e034e5b7ebb8dcc46e398d101ce3563a9cfa22e685a6ff17cc7d.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ]
        },
        "first_seen": 1590011585.5625,
        "ppid": 2456
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1590011585.328125,
        "ppid": 376
    },
    {
        "process_path": "C:\\Windows\\System32\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 1676,
        "summary": {
            "file_opened": [
                "C:\\Windows\\System32\\en-US\\KERNELBASE.dll.mui"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\a71960516f40e034e5b7ebb8dcc46e398d101ce3563a9cfa22e685a6ff17cc7d.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\a71960516f40e034e5b7ebb8dcc46e398d101ce3563a9cfa22e685a6ff17cc7d.bin.dll.manifest"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorSystemHeapIsPrivate",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorUseSystemHeap",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\Windows Error Reporting\\WMR\\Disable"
            ],
            "dll_loaded": [
                "kernel32",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\a71960516f40e034e5b7ebb8dcc46e398d101ce3563a9cfa22e685a6ff17cc7d.bin.dll"
            ]
        },
        "first_seen": 1590011585.921875,
        "ppid": 1664
    }
]

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\\CODRU-CL2M-SOURCES\\bin\\x64\\Release\\BdShellExt.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": 6.125035047531128,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5694,
            "time": 6.061609983444214,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6022,
            "time": 4.149147987365723,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6350,
            "time": 6.069114923477173,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6678,
            "time": 4.6631340980529785,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 7006,
            "time": 2.9732859134674072,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 7334,
            "time": 4.65920090675354,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 19268,
            "time": 4.169816017150879,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 27652,
            "time": 6.1796181201934814,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "d3ff4a866cc08bda7e7d65bf98d175bb6289833c6cb86b4fe4a6e63544dfb0e9",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "2513878ef57bbdb0e97a0bb0671180787cd8f0be5f097024b1bcc2b872f8ce57",
    "irc": [],
    "https_ex": []
}

Screenshots

Other files also named bdshellext.dll

bdshellext.dll (6 votes)

Malware or legitimate?

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