Downloader.AYL Downloader

Downloader.AYL malware description and removal detail
Categories:Downloader
Also known as:

[Kaspersky]Trojan-Clicker.Win32.Small.ja;
[Other]W32/Smalltroj.LVL
Visible Symptoms:
Files in system folders:
[%FAVORITES%]21.com.lnk
[%PROGRAM_FILES%]BHO Plugin21.ico
[%PROGRAM_FILES%]BHO Pluginlw.ext
[%PROGRAM_FILES%]BHO Pluginplugin.dll
[%PROGRAM_FILES%]BHO Pluginuninstall.exe
[%DESKTOP%]21.com.lnk
[%PROGRAM_FILES%]BHO Pluginplugin1.dll
[%PROGRAM_FILES%]BHO Plugin~uninstall.exe
[%SYSTEM%]byxxxur.dll
[%SYSTEM%]tcpip.exe
[%WINDOWS%]srvpebeoxu.exe
[%FAVORITES%]21.com.lnk
[%PROGRAM_FILES%]BHO Plugin21.ico
[%PROGRAM_FILES%]BHO Pluginlw.ext
[%PROGRAM_FILES%]BHO Pluginplugin.dll
[%PROGRAM_FILES%]BHO Pluginuninstall.exe
[%DESKTOP%]21.com.lnk
[%PROGRAM_FILES%]BHO Pluginplugin1.dll
[%PROGRAM_FILES%]BHO Plugin~uninstall.exe
[%SYSTEM%]byxxxur.dll
[%SYSTEM%]tcpip.exe
[%WINDOWS%]srvpebeoxu.exe

In order to ensure that the Downloader.AYL is launched automatically each time the system is booted, the Downloader.AYL adds a link to its executable file in the system registry:
HKLMMicrosoftWindowsCurrentVersionRun
[%PROGRAM_FILES%]BHO Pluginuninstall.exe
[%PROGRAM_FILES%]BHO Plugin~uninstall.exe
[%SYSTEM%]tcpip.exe
[%WINDOWS%]srvpebeoxu.exe

Platforms / OS: Windows 95, Windows 98, Windows 98 SE, Windows NT, Windows ME, Windows 2000, Windows XP, Windows 2003, Windows Vista

Detecting Downloader.AYL:

Files:
[%FAVORITES%]21.com.lnk
[%PROGRAM_FILES%]BHO Plugin21.ico
[%PROGRAM_FILES%]BHO Pluginlw.ext
[%PROGRAM_FILES%]BHO Pluginplugin.dll
[%PROGRAM_FILES%]BHO Pluginuninstall.exe
[%DESKTOP%]21.com.lnk
[%PROGRAM_FILES%]BHO Pluginplugin1.dll
[%PROGRAM_FILES%]BHO Plugin~uninstall.exe
[%SYSTEM%]byxxxur.dll
[%SYSTEM%]tcpip.exe
[%WINDOWS%]srvpebeoxu.exe
[%FAVORITES%]21.com.lnk
[%PROGRAM_FILES%]BHO Plugin21.ico
[%PROGRAM_FILES%]BHO Pluginlw.ext
[%PROGRAM_FILES%]BHO Pluginplugin.dll
[%PROGRAM_FILES%]BHO Pluginuninstall.exe
[%DESKTOP%]21.com.lnk
[%PROGRAM_FILES%]BHO Pluginplugin1.dll
[%PROGRAM_FILES%]BHO Plugin~uninstall.exe
[%SYSTEM%]byxxxur.dll
[%SYSTEM%]tcpip.exe
[%WINDOWS%]srvpebeoxu.exe

Registry Keys:
HKEY_CLASSES_ROOTclsid{96360ee3-e780-498e-a9a9-f057991ba9bf}inprocserver32
HKEY_CLASSES_ROOTclsid{9bb5b49c-0d59-418d-a6a5-f6373b8fef64}
HKEY_LOCAL_MACHINEsoftwaremicrosoftwindowscurrentversionexplorerbrowser helper objects{96360ee3-e780-498e-a9a9-f057991ba9bf}

Registry Values:
HKEY_CURRENT_USERsoftwaremicrosoftwindowscurrentversionextsettings{9bb5b49c-0d59-418d-a6a5-f6373b8fef64}
HKEY_CURRENT_USERsoftwaremicrosoftwindowscurrentversionextsettings{9bb5b49c-0d59-418d-a6a5-f6373b8fef64}
HKEY_LOCAL_MACHINEsoftwaremicrosoftwindowscurrentversionexplorerbrowser helper objects{9bb5b49c-0d59-418d-a6a5-f6373b8fef64}
HKEY_LOCAL_MACHINEsoftwaremicrosoftwindowscurrentversiontcpip

Removing Downloader.AYL:

An up-to-date copy of ExterminateIt should detect and prevent infection from Downloader.AYL.

If you do not have ExterminateIt and you are worried that you may have infected computer, you could run trial version of ExterminateIt, or remove Downloader.AYL manually.

To completely manually remove Downloader.AYL malware from your computer, you need to delete the Windows registry keys and registry values, the files and folders associated with Downloader.AYL.

  1. Use Task Manager to terminate the Downloader.AYL process.
  2. Delete the original Downloader.AYL file and folders.
  3. Delete the system registry key parameters
  4. Update your antivirus databases or buy antivirus software and perform a full scan of the computer.

We recommends that all Internet users back up any important information on their computers, enable maximum protection from network attacks and malicious code on their computers, refrain from executing suspicious programs received from untrustworthy sources.

ExterminateIt effectively and automatically removes Downloader.AYL from you computer and is a good solution for those who are seeking easy and effective protection for their computer from Trojan Horses, Rootkits, Backdoors, spyware, botnets, keystroke loggers, dialers and other malicious software(malware).

Download ExterminateIt! to instantly get rid of Downloader.AYL!

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