What is AvastBrowser.exe?

AvastBrowser.exe is part of Avast Secure Browser and developed by AVAST Software according to the AvastBrowser.exe version information.

AvastBrowser.exe's description is "Avast Secure Browser"

AvastBrowser.exe is digitally signed by AVAST Software s.r.o..

AvastBrowser.exe is usually located in the 'C:\Program Files (x86)\AVAST Software\Browser\Application\' folder.

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

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 AvastBrowser.exe:

PropertyValue
Product nameAvast Secure Browser
Company nameAVAST Software
File descriptionAvast Secure Browser
Internal nameAvastBrowser_exe
Original filenameAvastBrowser.exe
Legal copyright(c) 2019 AVAST Software
Product version76.0.1632.100
File version76.0.1632.100

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

Product nameAvast Secure Browser
Company nameAVAST Software
File descriptionAvast Secure Browser
Internal nameAvastBrowser_exe
Original filenameAvastBrowser.exe
Legal copyright(c) 2019 AVAST Software
Product version76.0.1632.100
File version76.0.1632.100

Digital signatures [?]

AvastBrowser.exe has a valid digital signature.

PropertyValue
Signer nameAVAST Software s.r.o.
Certificate issuer nameDigiCert High Assurance Code Signing CA-1
Certificate serial number07c70f7cab145bc1ed385fbe69fa3130

VirusTotal report

None of the 71 anti-virus programs at VirusTotal detected the AvastBrowser.exe file.

None of the 71 anti-virus programs detected the AvastBrowser.exe 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": 1568364785.5156,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "AvastBrowser.exe.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 4,
        "families": [],
        "description": "The executable contains unknown PE section names indicative of a packer (could be a false positive)",
        "severity": 1,
        "marks": [
            {
                "category": "section",
                "ioc": ".00cfg",
                "type": "ioc",
                "description": null
            },
            {
                "category": "section",
                "ioc": ".voltbl",
                "type": "ioc",
                "description": null
            },
            {
                "category": "section",
                "ioc": "CPADinfo",
                "type": "ioc",
                "description": null
            },
            {
                "category": "section",
                "ioc": "prot",
                "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": "GOOGLEUPDATEAPPLICATIONCOMMANDS",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_unknown_resource_name"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "The binary likely contains encrypted or compressed data indicative of a packer",
        "severity": 2,
        "marks": [
            {
                "entropy": 6.8081467271829,
                "section": {
                    "size_of_data": "0x00111000",
                    "virtual_address": "0x00001000",
                    "entropy": 6.8081467271829,
                    "name": ".text",
                    "virtual_size": "0x00110e2a"
                },
                "type": "generic",
                "description": "A section with a high entropy has been found"
            },
            {
                "entropy": 0.61729790842284,
                "type": "generic",
                "description": "Overall entropy of this PE file is high"
            }
        ],
        "references": [
            "http:\/\/www.forensickb.com\/2013\/03\/file-entropy-explained.html",
            "http:\/\/virii.es\/U\/Using%20Entropy%20Analysis%20to%20Find%20Encrypted%20and%20Packed%20Malware.pdf"
        ],
        "name": "packer_entropy"
    }
]

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": 866,
            "time": 1.0146970748901,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 1194,
            "time": 1.6437790393829,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 1522,
            "time": -0.085619926452637,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 1850,
            "time": 1.5940041542053,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 2942,
            "time": 1.0502951145172,
            "dport": 3702,
            "sport": 49152
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "da40dd1d365bff252fa016c60fcaece3945e163ca60108cb410fed5162bcbcf2",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "b1c9c4c13dafec92965667cef305acd6c46f1ffc026e61b25cd396cf6692d5df",
    "irc": [],
    "https_ex": []
}

Hashes [?]

PropertyValue
MD59d22df9f9d85131f71d0b67e3fcdf1d2
SHA2569075728c78d57532416b84197e8b3c177c455a0b404433f16535d9e516d6f5a9

Error Messages

These are some of the error messages that can appear related to avastbrowser.exe:

avastbrowser.exe has encountered a problem and needs to close. We are sorry for the inconvenience.

avastbrowser.exe - Application Error. The instruction at "0xXXXXXXXX" referenced memory at "0xXXXXXXXX". The memory could not be "read/written". Click on OK to terminate the program.

Avast Secure Browser has stopped working.

End Program - avastbrowser.exe. This program is not responding.

avastbrowser.exe is not a valid Win32 application.

avastbrowser.exe - Application Error. The application failed to initialize properly (0xXXXXXXXX). Click OK to terminate the application.

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?

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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