What is gaoptout_x64.dll?

gaoptout_x64.dll is part of Google Analytics Opt-out Browser Add-on and developed by Google, Inc. according to the gaoptout_x64.dll version information.

gaoptout_x64.dll is digitally signed by Google LLC.

gaoptout_x64.dll is usually located in the 'C:\Program Files\Google\Google Analytics Opt-Out\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about gaoptout_x64.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.

Vendor and version information [?]

The following is the available information on gaoptout_x64.dll:

PropertyValue
Product nameGoogle Analytics Opt-out Browser Add-on
Company nameGoogle, Inc.
Internal namegaoptout.dll
Original filenamegaoptout.dll
Product version0.9.7.0
File version0.9.7.0

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

Product nameGoogle Analytics Opt-out Browser Add..
Company nameGoogle, Inc.
Internal namegaoptout.dll
Original filenamegaoptout.dll
Product version0.9.7.0
File version0.9.7.0

Digital signatures [?]

gaoptout_x64.dll has a valid digital signature.

PropertyValue
Signer nameGoogle LLC
Certificate issuer nameDigiCert SHA2 Assured ID Code Signing CA
Certificate serial number0c15be4a15bb0903c901b1d6c265302f

VirusTotal report

None of the 71 anti-virus programs at VirusTotal detected the gaoptout_x64.dll file.

None of the 71 anti-virus programs detected the gaoptout_x64.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\\ae3049d4ae99d02f200bec23e5e48a59092f4dc57055716135bfa02dfbd1367e.bin.dll"
    ],
    "file_opened": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\ae3049d4ae99d02f200bec23e5e48a59092f4dc57055716135bfa02dfbd1367e.bin.dll"
    ],
    "regkey_opened": [
        "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\ae3049d4ae99d02f200bec23e5e48a59092f4dc57055716135bfa02dfbd1367e.bin.dll.manifest",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\ae3049d4ae99d02f200bec23e5e48a59092f4dc57055716135bfa02dfbd1367e.bin.dll"
    ],
    "command_line": [
        "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\ae3049d4ae99d02f200bec23e5e48a59092f4dc57055716135bfa02dfbd1367e.bin.dll,DllMain"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\ae3049d4ae99d02f200bec23e5e48a59092f4dc57055716135bfa02dfbd1367e.bin.dll"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\DisableImprovedZoneCheck",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Policies\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Security_HKLM_only",
        "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\services\\crypt32\\DebugHeapFlags"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\System32\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2968,
        "summary": {
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\ae3049d4ae99d02f200bec23e5e48a59092f4dc57055716135bfa02dfbd1367e.bin.dll.manifest",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\ae3049d4ae99d02f200bec23e5e48a59092f4dc57055716135bfa02dfbd1367e.bin.dll"
            ],
            "regkey_opened": [
                "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\DisableImprovedZoneCheck",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Policies\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Security_HKLM_only",
                "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\services\\crypt32\\DebugHeapFlags"
            ],
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\ae3049d4ae99d02f200bec23e5e48a59092f4dc57055716135bfa02dfbd1367e.bin.dll"
            ]
        },
        "first_seen": 1577238787.796875,
        "ppid": 2816
    },
    {
        "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2816,
        "summary": {
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\ae3049d4ae99d02f200bec23e5e48a59092f4dc57055716135bfa02dfbd1367e.bin.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\ae3049d4ae99d02f200bec23e5e48a59092f4dc57055716135bfa02dfbd1367e.bin.dll"
            ],
            "command_line": [
                "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\ae3049d4ae99d02f200bec23e5e48a59092f4dc57055716135bfa02dfbd1367e.bin.dll,DllMain"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\ae3049d4ae99d02f200bec23e5e48a59092f4dc57055716135bfa02dfbd1367e.bin.dll.manifest",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\ae3049d4ae99d02f200bec23e5e48a59092f4dc57055716135bfa02dfbd1367e.bin.dll"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\ae3049d4ae99d02f200bec23e5e48a59092f4dc57055716135bfa02dfbd1367e.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ]
        },
        "first_seen": 1577238787.640625,
        "ppid": 2016
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1577238787.328125,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "T:\\src\\piper\\googleclient\\analytics\\optout\\ie\\build\\opt_x64\\obj\\unsigned_gaoptout_dll.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "The file contains an unknown PE resource name possibly indicative of a packer",
        "severity": 1,
        "marks": [
            {
                "category": "resource name",
                "ioc": "REGISTRY",
                "type": "ioc",
                "description": null
            },
            {
                "category": "resource name",
                "ioc": "TYPELIB",
                "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": "192.168.56.255",
            "offset": 662,
            "time": 6.182584047317505,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5442,
            "time": 6.117982864379883,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5770,
            "time": 4.133363962173462,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6098,
            "time": 6.125565052032471,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6426,
            "time": 4.634706020355225,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6754,
            "time": 3.0215139389038086,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 7082,
            "time": 4.647227048873901,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 16880,
            "time": 4.1544129848480225,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 25264,
            "time": 6.248082876205444,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "ab85ebfb6799911055fe0c27fe7de5478a6db3e1d8911c9708a0825c539988c5",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "69e7a47cd19854a8b96d4ad5e0c42c9b13ca8e75a1b7b4a7766241909f11087f",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandboxScreenshot from the sandbox

Hashes [?]

PropertyValue
MD54d1cbcf10b60cc19abf6d45f7b36de02
SHA256ae3049d4ae99d02f200bec23e5e48a59092f4dc57055716135bfa02dfbd1367e

What will you do with the file?

To help other users, please let us know what you will do with the file:



Malware or legitimate?

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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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