Downloads:

249,909

Downloads of v 2.11.0:

1,871

Last Update:

1/12/2018

Package Maintainer(s):

Software Author(s):

  • Facebook

Tags:

InfoSec Tools

osquery

This is not the latest version of osquery available.

2.11.0 | Updated: 1/12/2018

Downloads:

249,909

Downloads of v 2.11.0:

1,871

Maintainer(s):

Software Author(s):

  • Facebook

Tags:

InfoSec Tools

osquery 2.11.0

This is not the latest version of osquery available.

All Checks are Passing

2 Passing Test


Validation Testing Passed


Verification Testing Passed

Details

To install osquery, run the following command from the command line or from PowerShell:

>

To upgrade osquery, run the following command from the command line or from PowerShell:

>

To uninstall osquery, run the following command from the command line or from PowerShell:

>

NOTE: This applies to both open source and commercial editions of Chocolatey.

1. Ensure you are set for organizational deployment

Please see the organizational deployment guide

  • Open Source or Commercial:
    • Proxy Repository - Create a proxy nuget repository on Nexus, Artifactory Pro, or a proxy Chocolatey repository on ProGet. Point your upstream to https://chocolatey.org/api/v2. Packages cache on first access automatically. Make sure your choco clients are using your proxy repository as a source and NOT the default community repository. See source command for more information.
    • You can also just download the package and push it to a repository Download

3. Enter your internal repository url

(this should look similar to https://chocolatey.org/api/v2)

4. Choose your deployment method:


choco upgrade osquery -y --source="'STEP 3 URL'" [other options]

See options you can pass to upgrade.

See best practices for scripting.

Add this to a PowerShell script or use a Batch script with tools and in places where you are calling directly to Chocolatey. If you are integrating, keep in mind enhanced exit codes.

If you do use a PowerShell script, use the following to ensure bad exit codes are shown as failures:


choco upgrade osquery -y --source="'STEP 3 URL'" 
$exitCode = $LASTEXITCODE

Write-Verbose "Exit code was $exitCode"
$validExitCodes = @(0, 1605, 1614, 1641, 3010)
if ($validExitCodes -contains $exitCode) {
  Exit 0
}

Exit $exitCode

- name: Ensure osquery installed
  win_chocolatey:
    name: osquery
    state: present
    version: 2.11.0
    source: STEP 3 URL

See docs at https://docs.ansible.com/ansible/latest/modules/win_chocolatey_module.html.

Coming early 2020! Central Managment Reporting available now! More information...


chocolatey_package 'osquery' do
  action    :install
  version  '2.11.0'
  source   'STEP 3 URL'
end

See docs at https://docs.chef.io/resource_chocolatey_package.html.


Chocolatey::Ensure-Package
(
    Name: osquery,
    Version: 2.11.0,
    Source: STEP 3 URL
);

Requires Otter Chocolatey Extension. See docs at https://inedo.com/den/otter/chocolatey.


cChocoPackageInstaller osquery
{
   Name     = 'osquery'
   Ensure   = 'Present'
   Version  = '2.11.0'
   Source   = 'STEP 3 URL'
}

Requires cChoco DSC Resource. See docs at https://github.com/chocolatey/cChoco.


package { 'osquery':
  provider => 'chocolatey',
  ensure   => '2.11.0',
  source   => 'STEP 3 URL',
}

Requires Puppet Chocolatey Provider module. See docs at https://forge.puppet.com/puppetlabs/chocolatey.


salt '*' chocolatey.install osquery version="2.11.0" source="STEP 3 URL"

See docs at https://docs.saltstack.com/en/latest/ref/modules/all/salt.modules.chocolatey.html.

5. If applicable - Chocolatey configuration/installation

See infrastructure management matrix for Chocolatey configuration elements and examples.

This package was approved as a trusted package on 1/12/2018.

Description

osquery allows you to easily ask questions about your Linux, OSX, and
Windows infrastructure. Whether your goal is intrusion detection,
infrastructure reliability, or compliance, osquery gives you the ability
to empower and inform a broad set of organizations within your company.

  ### Package Parameters
  * `/InstallService` - This creates a new windows service that will auto-start the daemon.

  These parameters can be passed to the installer with the user of `-params`.
  For example: `-params '"/InstallService"'`.

tools\bin\osquery.zip
md5: D3EC1206573EA09160ABF1D8D1439BAB | sha1: E3F282FD74411B2EF53F8791504AFA7118A1E1DE | sha256: 953732A9DDE3F7FFAF2A8B72E74AFEFF4D02F264F875962F03ECCBCD0C8FAA54 | sha512: 8562F3BDF0CC0D3E12AEF20EB8794FCC24C1BEE52D1E2F0C8EB0D05BD353B6033A17691623044DD121372DE8031D2E33E428DCEBAF51632EC680834B945904BC
tools\chocolateyBeforeModify.ps1
#  Copyright (c) 2014-present, Facebook, Inc.
#  All rights reserved.
#
#  This source code is licensed under the BSD-style license found in the
#  LICENSE file in the root directory of this source tree. An additional grant
#  of patent rights can be found in the PATENTS file in the same directory.
. "$(Split-Path -Parent $MyInvocation.MyCommand.Definition)\\osquery_utils.ps1"

$serviceName = 'osqueryd'
$progData = [System.Environment]::GetEnvironmentVariable('ProgramData')
$targetFolder = Join-Path $progData "osquery"
$daemonFolder = Join-Path $targetFolder $serviceName
$extensionsFolder = Join-Path $targetFolder 'extensions'

# Ensure the service is stopped and processes are not running if exists.
if ((Get-Service $serviceName -ErrorAction SilentlyContinue) -and `
  (Get-Service $serviceName).Status -eq 'Running') {
  Stop-Service $serviceName
  # If we find zombie processes, ensure they're termintated
  $proc = Get-Process | Where-Object { $_.ProcessName -eq 'osqueryd' }
  if ($proc -ne $null) {
    Stop-Process -Force $proc -ErrorAction SilentlyContinue
  }
}

# Lastly, ensure that the Deny Write ACLs have been removed before modifying
if (Test-Path $daemonFolder) {
  Set-DenyWriteAcl $daemonFolder 'Remove'
}
if (Test-Path $extensionsFolder) {
  Set-DenyWriteAcl $extensionsFolder 'Remove'
}
tools\chocolateyinstall.ps1
#  Copyright (c) 2014-present, Facebook, Inc.
#  All rights reserved.
#
#  This source code is licensed under the BSD-style license found in the
#  LICENSE file in the root directory of this source tree. An additional grant
#  of patent rights can be found in the PATENTS file in the same directory.
. "$(Split-Path -Parent $MyInvocation.MyCommand.Definition)\\osquery_utils.ps1"

$serviceName = 'osqueryd'
$serviceDescription = 'osquery daemon service'
$progData = [System.Environment]::GetEnvironmentVariable('ProgramData')
$targetFolder = Join-Path $progData 'osquery'
$daemonFolder = Join-Path $targetFolder 'osqueryd'
$extensionsFolder = Join-Path $targetFolder 'extensions'
$logFolder = Join-Path $targetFolder 'log'
$targetDaemonBin = Join-Path $targetFolder 'osqueryd.exe'
$destDaemonBin = Join-Path $daemonFolder 'osqueryd.exe'
$packageParameters = $env:chocolateyPackageParameters
$arguments = @{}

# Ensure the service is stopped and processes are not running if exists.
if ((Get-Service $serviceName -ErrorAction SilentlyContinue) -and `
  (Get-Service $serviceName).Status -eq 'Running') {
  Stop-Service $serviceName
  # If we find zombie processes, ensure they're termintated
  $proc = Get-Process | Where-Object { $_.ProcessName -eq 'osqueryd' }
  if ($proc -ne $null) {
    Stop-Process -Force $proc -ErrorAction SilentlyContinue
  }
}

# Lastly, ensure that the Deny Write ACLs have been removed before modifying
if (Test-Path $daemonFolder) {
  Set-DenyWriteAcl $daemonFolder 'Remove'
}
if (Test-Path $extensionsFolder) {
  Set-DenyWriteAcl $extensionsFolder 'Remove'
}

# Now parse the packageParameters using good old regular expression
if ($packageParameters) {
  $match_pattern = "\/(?<option>([a-zA-Z]+)):(?<value>([`"'])?([a-zA-Z0-9- _\\:\.]+)([`"'])?)|\/(?<option>([a-zA-Z]+))"
  $option_name = 'option'
  $value_name = 'value'

  if ($packageParameters -match $match_pattern ) {
    $results = $packageParameters | Select-String $match_pattern -AllMatches
    $results.matches | ForEach-Object {
      $arguments.Add(
        $_.Groups[$option_name].Value.Trim(),
        $_.Groups[$value_name].Value.Trim())
    }
  } else {
    Throw "Package Parameters were found but were invalid (REGEX Failure)"
  }
  if ($arguments.ContainsKey("InstallService")) {
    $installService = $true
  }
} else {
  Write-Debug "No Package Parameters Passed in"
}

New-Item -Force -Type directory -Path $daemonFolder
New-Item -Force -Type directory -Path $logFolder
$packagePath = "$(Split-Path -Parent $MyInvocation.MyCommand.Definition)\\bin\\osquery.zip"
Get-ChocolateyUnzip -FileFullPath $packagePath -Destination $targetFolder

# In order to run osqueryd as a service, we need to have a folder that has a
# Deny Write ACL to everyone.
Move-Item -Force -Path $targetDaemonBin -Destination $destDaemonBin
Set-SafePermissions $daemonFolder

if ($installService) {
  if (-not (Get-Service $serviceName -ErrorAction SilentlyContinue)) {
    Write-Debug 'Installing osquery daemon service.'
    # If the 'install' parameter is passed, we create a Windows service with
    # the flag file in the default location in \ProgramData\osquery\
    New-Service -Name $serviceName -BinaryPathName "$destDaemonBin --flagfile=\ProgramData\osquery\osquery.flags" -DisplayName $serviceName -Description $serviceDescription -StartupType Automatic

    # If the osquery.flags file doesn't exist, we create a blank one.
    if (-not (Test-Path "$targetFolder\osquery.flags")) {
      Add-Content "$targetFolder\osquery.flags" $null
    }
  }
  Start-Service $serviceName
}

# Add osquery binary path to machines path for ease of use.
Add-ToSystemPath $targetFolder
tools\chocolateyuninstall.ps1
#  Copyright (c) 2014-present, Facebook, Inc.
#  All rights reserved.
#
#  This source code is licensed under the BSD-style license found in the
#  LICENSE file in the root directory of this source tree. An additional grant
#  of patent rights can be found in the PATENTS file in the same directory.
$progData = [System.Environment]::GetEnvironmentVariable('ProgramData')
$targetFolder = Join-Path $progData "osquery"
$serviceName = 'osqueryd'

# Remove the osquery path from the System PATH variable. Note: Here
# we don't make use of our local vars, as Regex requires escaping the '\'
$oldPath = [System.Environment]::GetEnvironmentVariable('Path', 'Machine')
if ($oldPath -imatch [regex]::escape($targetFolder)) {
  $newPath = $oldPath -replace [regex]::escape($targetFolder), $NULL
  [System.Environment]::SetEnvironmentVariable('Path', $newPath, 'Machine')
}

if ((Get-Service $serviceName -ErrorAction SilentlyContinue)) {
  Stop-Service $serviceName
  
  # If we find zombie processes, ensure they're termintated
  $proc = Get-Process | Where-Object { $_.ProcessName -eq 'osqueryd' }
  if ($proc -ne $null) {
    Stop-Process -Force $proc -ErrorAction SilentlyContinue
  }

  Set-Service $serviceName -startuptype 'manual'
  Get-CimInstance -ClassName Win32_Service -Filter "Name='osqueryd'" | Invoke-CimMethod -methodName Delete
}

if (Test-Path $targetFolder) {
  Remove-Item -Force -Recurse $targetFolder
} else {
  Write-Debug 'osquery was not found on the system. Nothing to do.'
}
tools\LICENSE.txt
BSD License

For osquery software

Copyright (c) 2014-present, Facebook, Inc. All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

 * Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.

 * Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

 * Neither the name Facebook nor the names of its contributors may be used to
   endorse or promote products derived from this software without specific
   prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
tools\osquery_utils.ps1
#  Copyright (c) 2014-present, Facebook, Inc.
#  All rights reserved.
#
#  This source code is licensed under the BSD-style license found in the
#  LICENSE file in the root directory of this source tree. An additional grant
#  of patent rights can be found in the PATENTS file in the same directory.

# Helper function to add an explicit Deny-Write ACE for the Everyone group
function Set-DenyWriteAcl {
  [CmdletBinding(SupportsShouldProcess = $true, ConfirmImpact = "Medium")]
  [OutputType('System.Boolean')]
  param(
    [string] $targetDir = '',
    [string] $action = ''
  )
  if (($action -ine 'Add') -and ($action -ine 'Remove')) {
    Write-Debug '[-] Invalid action in Set-DenyWriteAcl.'
    return $false
  }
  if ($PSCmdlet.ShouldProcess($targetDir)) {
    $acl = Get-Acl $targetDir
    $inheritanceFlag = [System.Security.AccessControl.InheritanceFlags]::ContainerInherit -bor [System.Security.AccessControl.InheritanceFlags]::ObjectInherit
    $propagationFlag = [System.Security.AccessControl.PropagationFlags]::None
    $permType = [System.Security.AccessControl.AccessControlType]::Deny

    $worldSIDObj = New-Object System.Security.Principal.SecurityIdentifier ('S-1-1-0')
    $worldUser = $worldSIDObj.Translate([System.Security.Principal.NTAccount])
    $permission = $worldUser.Value, "write", $inheritanceFlag, $propagationFlag, $permType
    $accessRule = New-Object System.Security.AccessControl.FileSystemAccessRule $permission
    # We only support adding or removing the ACL
    if ($action -ieq 'add') {
      $acl.SetAccessRule($accessRule)
    } else {
      $acl.RemoveAccessRule($accessRule)
    }
    Set-Acl $targetDir $acl
    return $true
  }
  return $false
}

# A helper function to set "safe" permissions for osquery binaries
function Set-SafePermissions {
  [CmdletBinding(SupportsShouldProcess = $true, ConfirmImpact = "Medium")]
  [OutputType('System.Boolean')]
  param(
    [string] $target = ''
  )
  if ($PSCmdlet.ShouldProcess($target)) {
    $acl = Get-Acl $target

    # First, to ensure success, we remove the entirety of the ACL
    $acl.SetAccessRuleProtection($true, $false)
    foreach ($access in $acl.Access) {
      $acl.RemoveAccessRule($access)
    }
    Set-Acl $target $acl

    $acl = Get-Acl $target
    $inheritanceFlag = [System.Security.AccessControl.InheritanceFlags]::ContainerInherit -bor [System.Security.AccessControl.InheritanceFlags]::ObjectInherit
    $propagationFlag = [System.Security.AccessControl.PropagationFlags]::None
    $permType = [System.Security.AccessControl.AccessControlType]::Allow

    # "Safe" permissions in osquery entail the containing folder and binary both
    # are owned by the Administrators group, as well as no account has Write
    # permissions except for the Administrators group and SYSTEM account
    $systemSid = New-Object System.Security.Principal.SecurityIdentifier('S-1-5-18')
    $systemUser = $systemSid.Translate([System.Security.Principal.NTAccount])

    $adminsSid = New-Object System.Security.Principal.SecurityIdentifier('S-1-5-32-544')
    $adminsGroup = $adminsSid.Translate([System.Security.Principal.NTAccount])

    $usersSid = New-Object System.Security.Principal.SecurityIdentifier('S-1-5-32-545')
    $usersGroup = $usersSid.Translate([System.Security.Principal.NTAccount])

    $permGroups = @($systemUser, $adminsGroup, $usersGroup)
    foreach ($accnt in $permGroups) {
      $grantedPerm = ''
      if ($accnt -eq $usersGroup) {
        $grantedPerm = 'ReadAndExecute'
      } else {
        $grantedPerm = 'FullControl'
      }
      $permission = $accnt.Value, $grantedPerm, $inheritanceFlag, $propagationFlag, $permType
      $accessRule = New-Object System.Security.AccessControl.FileSystemAccessRule $permission
      $acl.SetAccessRule($accessRule)
    }
    $acl.SetOwner($adminsGroup)
    Set-Acl $target $acl

    # Finally set the Administrators group as the owner for all items
    $items = Get-ChildItem -Recurse -Path $target
    foreach ($item in $items) {
      $acl = Get-Acl -Path $item.FullName
      $acl.SetOwner($adminsGroup)
      Set-Acl $item.FullName $acl
    }

    return $true
  }
  return $false
}

# Helper function for running a .bat file from powershell
function Invoke-BatchFile {
  param(
    [string]$path,
    [string]$parameters
  )
  $tempFile = [IO.Path]::GetTempFileName()
  cmd.exe /c " `"$path`" $parameters && set > `"$tempFile`" "
  Get-Content $tempFile | Foreach-Object {
    if ($_ -match '^(.*?)=(.*)$') {
      Set-Content "env:\$($matches[1])" $matches[2]
    }
  }
  Remove-Item $tempFile
}

# Constructs a chocolatey .nuspec file in the current directory
function Write-NuSpec {
  param(
    [string] $packageName,
    [string] $version,
    [string] $authors,
    [string] $owners,
    [string] $projectSource,
    [string] $packageSourceUrl,
    [string] $copyright,
    [string] $license
  )
  $nuspec = @"
<?xml version="1.0" encoding="utf-8"?>
<!-- Do not remove this test for UTF-8: if “Ω” doesn’t appear as greek uppercase omega letter enclosed in quotation marks, you should use an editor that supports UTF-8, not this one. -->
<package xmlns="http://schemas.microsoft.com/packaging/2015/06/nuspec.xsd">
  <metadata>
    <id>$packageName</id>
    <title>$packageName</title>
    <version>$version</version>
    <authors>$authors</authors>
    <owners>$owners</owners>
    <summary>$packageName</summary>
    <description>$packageName</description>
    <projectUrl>$projectSource</projectUrl>
    <packageSourceUrl>$packageSourceUrl</packageSourceUrl>
    <tags>$packageName</tags>
    <copyright>$copyright</copyright>
    <licenseUrl>$license</licenseUrl>
    <requireLicenseAcceptance>false</requireLicenseAcceptance>
  </metadata>
  <files>
    <file src="local\**" target="local" />
  </files>
</package>
"@
  Out-File -Encoding "UTF8" -FilePath "$packageName.nuspec" -InputObject $nuspec
}

# Derive the location of the osquery build location
function Get-OsqueryBuildPath {
  [OutputType('System.String')]
  param()
  $loc = Get-Location
  $toks = $loc -Split '\\'
  $ret = ''
  0..$toks.length | ForEach-Object {
    if (Test-Path "$($toks[0..$_] -Join '\')\tools\provision.ps1") {
      $ret = "$($toks[0..$_] -Join '\')\build"
    }
  }
  return $ret
}

# Helper function to add to the SYSTEM path
function Add-ToSystemPath {
  param(
    [string] $targetFolder = ''
  )

  $oldPath = [System.Environment]::GetEnvironmentVariable('Path', 'Machine')
  if (-not ($oldPath -imatch [regex]::escape($targetFolder))) {
    $newPath = $oldPath
    if ($oldPath[-1] -eq ';') {
      $newPath = $newPath + $targetFolder
    } else {
      $newPath = $newPath + ';' + $targetFolder
    }
    [System.Environment]::SetEnvironmentVariable('Path', $newPath, 'Machine')
  }
}

# A helper function for starting and waiting on processes in powershell
function Start-OsqueryProcess {
  param(
    [string] $binaryPath = '',
    [array] $binaryArgs = @(),
    [bool] $redirectOutput = $true
  )
  $pinfo = New-Object System.Diagnostics.ProcessStartInfo
  $pinfo.FileName = $binaryPath
  $pinfo.RedirectStandardError = $redirectOutput
  $pinfo.RedirectStandardOutput = $redirectOutput
  $pinfo.UseShellExecute = $false
  $pinfo.Arguments = $binaryArgs
  $pinfo.WorkingDirectory = Get-Location
  $p = New-Object System.Diagnostics.Process
  $p.StartInfo = $pinfo
  $p.Start()
  $p.WaitForExit()

  if ($redirectOutput) {
    $stdout = $p.StandardOutput.ReadToEnd()
    $stderr = $p.StandardError.ReadToEnd()
    $exit = $p.ExitCode
    [PSCustomObject] @{
      stdout = $stdout
      stderr = $stderr
      exitcode = $exit
    }
  } else {
    $exit = $p.ExitCode
    [PSCustomObject] @{
      exitcode = $exit
    }
  }
}
tools\VERIFICATION.txt
To verify the osquery binaries are valid and not corrupted, one can run one of the following:

C:\Users\> Get-FileHash -Algorithm SHA256 .\build\windows10\osquery\Release\osqueryd.exe
C:\Users\> Get-FileHash -Algorithm SHA1 .\build\windows10\osquery\Release\osqueryd.exe
C:\Users\> Get-FileHash -Algorithm MD5 .\build\windows10\osquery\Release\osqueryd.exe

And verify that the digests match one of the below values:
SHA256: A49FF667C449734110AAA3FFF736407FE3D9EBD3BD217FFA7B3B2F2FA1797064
SHA1: 4C767E72C6D7D977F3193A54425875A24BC6E206
MD5: C9F5336B1486B81335C09F10AEA2572C


In cases where actual malware is found, the packages are subject to removal. Software sometimes has false positives. Moderators do not necessarily validate the safety of the underlying software, only that a package retrieves software from the official distribution point and/or validate embedded software against official distribution point (where distribution rights allow redistribution).

Chocolatey Pro provides runtime protection from possible malware.

Version Downloads Last Updated Status
osquery 4.0.1 429 Wednesday, September 11, 2019 Approved
osquery 3.4.0 9193 Thursday, May 23, 2019 Approved
osquery 3.3.2 5608 Monday, January 28, 2019 Approved
osquery 3.3.1 43484 Tuesday, October 2, 2018 Approved
osquery 3.3.0 3025 Monday, August 20, 2018 Approved
osquery 3.2.9 74605 Monday, July 2, 2018 Approved
osquery 3.2.6 52658 Monday, July 2, 2018 Approved
osquery 3.2.4 2935 Friday, May 4, 2018 Approved
osquery 2.11.2 5531 Monday, February 5, 2018 Approved

This package has no dependencies.

Discussion for the osquery Package

Ground Rules:

  • This discussion is only about osquery and the osquery package. If you have feedback for Chocolatey, please contact the Google Group.
  • This discussion will carry over multiple versions. If you have a comment about a particular version, please note that in your comments.
  • The maintainers of this Chocolatey Package will be notified about new comments that are posted to this Disqus thread, however, it is NOT a guarantee that you will get a response. If you do not hear back from the maintainers after posting a message below, please follow up by using the link on the left side of this page or follow this link to contact maintainers. If you still hear nothing back, please follow the package triage process.
  • Tell us what you love about the package or osquery, or tell us what needs improvement.
  • Share your experiences with the package, or extra configuration or gotchas that you've found.
  • If you use a url, the comment will be flagged for moderation until you've been whitelisted. Disqus moderated comments are approved on a weekly schedule if not sooner. It could take between 1-5 days for your comment to show up.
comments powered by Disqus