Threat Explorer

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PUA.Classicmedia

PUA.Classicmedia

Updated:
May 18, 2016
Infection Length:
Varies
Name:
Classicmedia Downloader
Publisher:
OOO Classic-Media
Risk Impact:
Low
Systems Affected:
Windows

Behavior

PUA.Classicmedia is a potentially unwanted application that modifies browser settings without the user's consent.

Antivirus Protection Dates

  • Initial Rapid Release version May 18, 2016
  • Latest Rapid Release version September 22, 2016 revision 004
  • Initial Daily Certified version May 18, 2016
  • Latest Daily Certified version September 22, 2016 revision 025
  • Initial Weekly Certified release date May 25, 2016
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
When the program is executed, it creates the following folders:
  • %AppData%\everysale4
  • %AppData%\MailProducts
  • %AppData%\Neiron
  • %AppData%\phoenixguard
  • %AppData%\Amigo
  • %AppData%\Amigo\Application
  • %AppData%\Amigo\Application\44.4.2403.3
  • %AppData%\Amigo\Application\44.4.2403.3\Extensions
  • %AppData%\Amigo\Application\44.4.2403.3\Installer
  • %AppData%\Amigo\Application\44.4.2403.3\Locales
  • %AppData%\Amigo\Application\44.4.2403.3\PepperFlash
  • %AppData%\Amigo\Application\44.4.2403.3\VisualElements
  • %AppData%\Amigo\User Data
  • %AppData%\Mail.Ru
  • %AppData%\Mail.Ru\mrst
  • %AppData%\Mail.Ru\Sputnik
  • %AppData%\PhoenixBrowserUpdater
  • %AppData%\Unity
  • %AppData%\Unity\WebPlayer
  • %AppData%\Unity\WebPlayer\loader
  • %UserProfile%\Local Settings\Temp\amigo_FFA3C3E0-B3B6-4D8C-928C-75AA59A806A0
  • %UserProfile%\Start Menu\Programs\Web Search Tools
  • %ProgramFiles%\Google\Update\Download\{430FD4D0-B729-4F61-AA34-91526481799D}\1.3.30.3
  • %ProgramFiles%\Google\Update\Install\{490C726E-262A-4081-88B0-BE58F8CA6F81}
  • %ProgramFiles%\Google\Update\1.3.30.3
  • %ProgramFiles%\Mail.Ru
  • %ProgramFiles%\Mail.Ru\MailRuUpdater
  • %ProgramFiles%\Mail.Ru\Update Service
  • %ProgramFiles%\Twilight Tech
  • %ProgramFiles%\Twilight Tech\Pretty Search

The program then creates the following files:
  • %AppData%\Microsoft\Internet Explorer\Quick Launch\Mail.Ru.lnk
  • %AppData%\Microsoft\Internet Explorer\Quick Launch\Twilight Pretty Search.lnk
  • %AppData%\Microsoft\Internet Explorer\Quick Launch\[SPECIAL CHARACTERS].lnk
  • %AppData%\Microsoft\Internet Explorer\Quick Launch\[SPECIAL CHARACTERS].lnk
  • %AppData%\Microsoft\Internet Explorer\Quick Launch\[SPECIAL CHARACTERS].lnk
  • %AppData%\everysale4\chrome.dat
  • %AppData%\MailProducts\Id
  • %AppData%\Neiron\chrome.dat
  • %AppData%\phoenixguard\chrome.dat
  • %SystemDrive%\Documents and Settings\All Users\Desktop\[SPECIAL CHARACTERS].lnk
  • %SystemDrive%\Documents and Settings\All Users\Desktop\[SPECIAL CHARACTERS].lnk
  • %SystemDrive%\Documents and Settings\All Users\Desktop\[SPECIAL CHARACTERS].url
  • %SystemDrive%\Documents and Settings\All Users\Desktop\[SPECIAL CHARACTERS].lnk
  • %AppData%\Amigo\Application\44.4.2403.3\metro_driver.dll
  • %AppData%\Amigo\Application\44.4.2403.3\nacl64.exe
  • %AppData%\Amigo\Application\44.4.2403.3\nacl_irt_x86_32.nexe
  • %AppData%\Amigo\Application\44.4.2403.3\nacl_irt_x86_64.nexe
  • %AppData%\Amigo\Application\44.4.2403.3\natives_blob.bin
  • %AppData%\Amigo\Application\44.4.2403.3\PepperFlash\manifest.json
  • %AppData%\Amigo\Application\44.4.2403.3\PepperFlash\pepflashplayer.dll
  • %AppData%\Amigo\Application\44.4.2403.3\resources.pak
  • %AppData%\Amigo\Application\44.4.2403.3\secondarytile.png
  • %AppData%\Amigo\Application\44.4.2403.3\snapshot_blob.bin
  • %AppData%\Amigo\Application\44.4.2403.3\VisualElements\logo.png
  • %AppData%\Amigo\Application\44.4.2403.3\VisualElements\smalllogo.png
  • %AppData%\Amigo\Application\44.4.2403.3\VisualElements\splash-620x300.png
  • %AppData%\Amigo\Application\44.4.2403.3\xinput1_3.dll
  • %AppData%\Amigo\Application\amigo.exe
  • %AppData%\Amigo\Application\mg.exe
  • %AppData%\Amigo\Application\mm.exe
  • %AppData%\Amigo\Application\ok.exe
  • %AppData%\Amigo\Application\VisualElementsManifest.xml
  • %AppData%\Amigo\Application\vk.exe
  • %AppData%\Amigo\User Data\Local State
  • %AppData%\Mail.Ru\GoMailRu.ico
  • %AppData%\Mail.Ru\ifrm
  • %AppData%\Mail.Ru\MailRuUpdater.exe
  • %AppData%\Mail.Ru\mrkeeper.exe
  • %AppData%\Mail.Ru\mrst\1
  • %AppData%\Mail.Ru\Sputnik\IESearchPlugin.dll
  • %AppData%\Mail.Ru\Sputnik\MailRu.ico
  • %AppData%\PhoenixBrowserUpdater\PhoenixBrowserUpdater.exe
  • %AppData%\PhoenixBrowserUpdater\prefs
  • %AppData%\PhoenixBrowserUpdater\Uninstall.exe
  • %AppData%\Unity\WebPlayer\loader\info.plist
  • %AppData%\Unity\WebPlayer\loader\npUnity3D32.dll
  • %AppData%\Unity\WebPlayer\loader\UnityWebPlayerNP.map
  • %AppData%\Unity\WebPlayer\loader\UnityWebPluginAX.ocx
  • %AppData%\Unity\WebPlayer\Uninstall.exe
  • %AppData%\Unity\WebPlayer\UnityBugReporter.exe
  • %AppData%\Unity\WebPlayer\UnityWebPlayerUpdate.exe
  • %SystemDrive%\Documents and Settings\All Users\Start Menu\Programs\[SPECIAL CHARACTERS].lnk
  • %SystemDrive%\Documents and Settings\All Users\Start Menu\Programs\[SPECIAL CHARACTERS].lnk
  • %SystemDrive%\Documents and Settings\All Users\Start Menu\Programs\[SPECIAL CHARACTERS].lnk
  • %AppData%a\Mail.Ru\Id
  • %AppData%a\Mail.Ru\ifrm
  • %UserProfile%\Favorites\Mail.Ru - [SPECIAL CHARACTERS].url
  • %UserProfile%\Favorites\Mail.Ru.url
  • %UserProfile%\Start Menu\Programs\Web Search Tools\Twilight Pretty Search.lnk
  • %ProgramFiles%\Mail.Ru\MailRuUpdater\MailRuUpdater.exe
  • %ProgramFiles%\Mail.Ru\Update Service\mrupdsrv.exe
  • %ProgramFiles%\Twilight Tech\Pretty Search\dummyDlg.exe
  • %ProgramFiles%\Twilight Tech\Pretty Search\orange-uninstall.ico
  • %ProgramFiles%\Twilight Tech\Pretty Search\uninstall.exe
  • %SystemDrive%\Training Samples\7cfaed0c5bf80b508141470626ae24052fde5b9cc9e6148c38f3029fcbea76b4.exe
  • %Windir%\Prefetch\7CFAED0C5BF80B508141470626AE2-2F9E3DC4.pf
  • %Windir%\Prefetch\7CFAED0C5BF80B508141470626AE2-32968FD5.pf
  • %Windir%\Prefetch\ABDC-FB3D-AFBD-92A8-3AC9A2C1.pf
  • %Windir%\Prefetch\AMIGO.EXE-0C39233F.pf

Next, the program then creates the following registry subkeys:
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AmigoHTML.UGF5M55MNH7QZBJITID62ILVUY
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AmigoHTML.UGF5M55MNH7QZBJITID62ILVUY\DefaultIcon
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AmigoHTML.UGF5M55MNH7QZBJITID62ILVUY\shell
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AmigoHTML.UGF5M55MNH7QZBJITID62ILVUY\shell\open
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AmigoHTML.UGF5M55MNH7QZBJITID62ILVUY\shell\open\command
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\IESearchPlugin.MailRuBHO
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\IESearchPlugin.MailRuBHO\CLSID
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\IESearchPlugin.MailRuBHO\CurVer
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\IESearchPlugin.MailRuBHO.1
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\IESearchPlugin.MailRuBHO.1\CLSID
  • HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\amigo.exe
  • HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\amigo.exe\shell
  • HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\amigo.exe\shell\open
  • HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\amigo.exe\shell\open\command
  • HKEY_LOCAL_MACHINE\SOFTWARE\Google\Update\ClientState\{430FD4D0-B729-4F61-AA34-91526481799D}\cohort
  • HKEY_LOCAL_MACHINE\SOFTWARE\Google\Update\PersistedPings
  • HKEY_LOCAL_MACHINE\SOFTWARE\Google\Chrome
  • HKEY_LOCAL_MACHINE\SOFTWARE\Google\Chrome\Extensions
  • HKEY_LOCAL_MACHINE\SOFTWARE\Google\Chrome\Extensions\bgcifljfapbhgiehkjlckfjmgeojijcb
  • HKEY_LOCAL_MACHINE\SOFTWARE\Google\Chrome\Extensions\lbjjfiihgfegniolckphpnfaokdkbmdm
  • HKEY_LOCAL_MACHINE\SOFTWARE\Google\Chrome\Extensions\mafpbclkdiejmpjnmioihcafdnlbmkco
  • HKEY_LOCAL_MACHINE\SOFTWARE\Google\Chrome\Extensions\nkooappjeoniffjmoplbagpngedkckpl
  • HKEY_LOCAL_MACHINE\SOFTWARE\Google\Chrome\Extensions\oelpkepjlgmehajehfeicfbjdiobdkfj
  • HKEY_LOCAL_MACHINE\SOFTWARE\Google\Chrome\Extensions\palmggefdfeikonghaeongkabmgcagco
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{68AE298D-7E8A-4F53-BE55-15D2B065F6C0}
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Toolbar
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MediaPlayer\ShimInclusionList\amigo.exe
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\amigo.exe
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{8E8F97CD-60B5-456F-A201-73065652D099}
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\PreApproved\{444785F1-DE89-4295-863A-D46C3A781394}
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Twilight Pretty Search
  • HKEY_LOCAL_MACHINE\SOFTWARE\Mail.Ru
  • HKEY_LOCAL_MACHINE\SOFTWARE\Mail.Ru\Updater

The program then creates the following registry entries:
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.htm\OpenWithProgids\"AmigoHTML.UGF5M55MNH7QZBJITID62ILVUY" = ""
  • HKEY_LOCAL_MACHINE\SOFTWARE\Google\Update\ClientState\{430FD4D0-B729-4F61-AA34-91526481799D}\cohort\”name" = "Everyone Else"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Google\Chrome\Extensions\bgcifljfapbhgiehkjlckfjmgeojijcb\"update_url" = "https://clients2.google.com/service/update2/crx"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{68AE298D-7E8A-4F53-BE55-15D2B065F6C0}\"AppName" = "mrkeeper.exe"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{68AE298D-7E8A-4F53-BE55-15D2B065F6C0}\"AppPath"= "%AppData%\Mail.Ru"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{68AE298D-7E8A-4F53-BE55-15D2B065F6C0}\"Policy" = "3"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\"amigo.exe" = "%AppData%\Amigo\Application\amigo.exe"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\amigo.exe\"Path" = "%AppData%\Amigo\Application"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\"{8E8F97CD-60B5-456F-A201-73065652D099}" = "MRSearchPlugin"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{8E8F97CD-60B5-456F-A201-73065652D099}\"NoExplorer" = "1"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\PreApproved\"{444785F1-DE89-4295-863A-D46C3A781394}" = ""
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Twilight Pretty Search\"DisplayName" = "Twilight Pretty Search"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Twilight Pretty Search\"DisplayVersion" = "1.00.01.00"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Twilight Pretty Search\"Description" = "Twilight Pretty Search"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Twilight Pretty Search\"Publisher" = "Twilight Tech Co., Ltd."
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Twilight Pretty Search\"URLInfoAbout" = "http://www.google.com"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Twilight Pretty Search\"DisplayIcon" = "%ProgramFiles%\Twilight Tech\Pretty Search\orange-uninstall.ico"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Twilight Pretty Search\"UninstallString" = "%ProgramFiles%\Twilight Tech\Pretty Search\uninstall.exe""
  • HKEY_LOCAL_MACHINE\SOFTWARE\RegisteredApplications\"[SPECIAL CHARACTERS].UGF5M55MNH7QZBJITID62ILVUY" = "Software\Clients\StartMenuInternet\[SPECIAL CHARACTERS].UGF5M55MNH7QZBJITID62ILVUY\Capabilities"
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_UPDATER.MAIL.RU\0000\Control\"ActiveService" = "Updater.Mail.Ru"
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\%AppData%\Amigo\Application\"amigo.exe" = "%AppData%\Amigo\Application\amigo.exe:*:Enabled:[SPECIAL CHARACTERS]"
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\mrupdsrv\"Type" = "10"
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\mrupdsrv\"Start" = "2"
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\mrupdsrv\"ErrorControl" = "0"
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\mrupdsrv\"ImagePath" = ""%ProgramFiles%\Mail.Ru\Update Service\mrupdsrv.exe" --s"
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\mrupdsrv\"DisplayName" = "Mail.Ru Update Service"
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\mrupdsrv\"ObjectName" = "LocalSystem"
  • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Updater.Mail.Ru\"ImagePath" = "%ProgramFiles%\Mail.Ru\MailRuUpdater\MailRuUpdater.exe --s"
  • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Updater.Mail.Ru\"DisplayName" = "Updater.Mail.Ru"
  • HKEY_USERS\S-1-5-21-1454471165-854245398-682003330-1003_Classes\UnityWebPlayer.UnityWebPlayer\"CLSID" = "{444785F1-DE89-4295-863A-D46C3A781394}"
  • HKEY_USERS\S-1-5-21-1454471165-854245398-682003330-1003_Classes\UnityWebPlayer.UnityWebPlayer\"CurVer" = "UnityWebPlayer.UnityWebPlayer.1"
  • HKEY_USERS\S-1-5-21-1454471165-854245398-682003330-1003_Classes"\UnityWebPlayer.UnityWebPlayer.1" = "UnityWebPlayer Control"
  • HKEY_USERS\S-1-5-21-1454471165-854245398-682003330-1003_Classes\UnityWebPlayer.UnityWebPlayer.1\"CLSID" = "{444785F1-DE89-4295-863A-D46C3A781394}"
  • HKEY_USERS\S-1-5-18\Software\Microsoft\Direct3D\MostRecentApplication\"Name" = "MailRuUpdater.exe"

The program may perform the following actions without the user's consent:
  • Modify browser settings
  • Change the default search engine
  • Change the default home page
  • Install browser extensions

The program does not provide removal options for the installed extensions.

You may have arrived at this page either because you have been alerted by your Symantec product about this risk, or you are concerned that your computer has been affected by this risk.

Before proceeding further we recommend that you run a full system scan . If that does not resolve the problem you can try one of the options available below.



FOR NORTON USERS
If you are a Norton product user, we recommend you try the following resources to remove this risk.


Removal Tool

If you have an infected Windows system file, you may need to replace it using the Windows installation CD .


How to reduce the risk of infection
The following resources provide further information and best practices to help reduce the risk of infection.


FOR BUSINESS USERS
If you are a Symantec business product user, we recommend you try the following resources to remove this risk.


Identifying and submitting suspect files
Submitting suspicious files to Symantec allows us to ensure that our protection capabilities keep up with the ever-changing threat landscape. Submitted files are analyzed by Symantec Security Response and, where necessary, updated definitions are immediately distributed through LiveUpdate™ to all Symantec end points. This ensures that other computers nearby are protected from attack. The following resources may help in identifying suspicious files for submission to Symantec.


Removal Tool

If you have an infected Windows system file, you may need to replace it using the Windows installation CD .


How to reduce the risk of infection
The following resource provides further information and best practices to help reduce the risk of infection.
Protecting your business network



MANUAL REMOVAL
The following instructions pertain to all current Symantec antivirus products.


1. Performing a full system scan
How to run a full system scan using your Symantec product


2. Restoring settings in the registry
Many risks make modifications to the registry, which could impact the functionality or performance of the compromised computer. While many of these modifications can be restored through various Windows components, it may be necessary to edit the registry. See in the Technical Details of this writeup for information about which registry keys were created or modified. Delete registry subkeys and entries created by the risk and return all modified registry entries to their previous values.