Comet Systems Removal: Remove Comet Systems Forever

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Threat's description and solution are developed by Security Stronghold security team.

Here you can also learn:

What is Comet Systems? Technical details of Comet Systems problem and Comet Systems removal tool.

Methods for manual Comet Systems removal.

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Threat's profile

They do not develop by themselves and ordinarily must be setup as any other software with or without user content. Whenever a consumer visits such a Web site or clicks on such a pop-up, noxious scripts immediately install a Comet Systems. Transforms needed web browser settings, degrades default security level and adds undesirable or unsafe resources to the Trusted sites list. Changes World wide web browser's default search page to a ordained WWW site without buyer consent. In some cases even a spyware removal utility can fail to liquidate a specific Comet Systems. As it was said above most Comet Systemss are quite resembling to spyware and advertisement threats and therefore cannot be killd with the help of popular antivirus creations.

Comet Systems intrusion method

Comet Systems copies its file(s) to your hard disk. Its typical file name is siuninst.exe. Then it creates new startup key with name Comet Systems and value siuninst.exe. You can also find it in your processes list with name siuninst.exe or Comet Systems.

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Download program to remove Comet Systems (Comet Systems Removal Tool)

Recommended Solution

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How to fix Comet Systems?

This problem can be solved manually by deleting all registry keys and files connected with Comet Systems, removing it from starup list and unregistering all corresponding DLLs. Additionally missing DLL's should be restored from distribution in case they are corrupted by Comet Systems.

To get rid of Comet Systems, you should:

1. Kill the following processes and delete the appropriate files:

no information

Warning: you should delete only those files which checksums are listed as malicious. There may be valid files with the same names in your system. We recommend you to use Comet Systems Removal Tool for safe problem solution.

2. Delete the following malicious folders:

• %programfiles%\comet systems\
• %programfiles%\comet\bin\
• %programfiles%\comet\data\
• %programfiles%\comet\products\adzap\
• %programfiles%\comet\products\funbutton\
• %programfiles%\comet\products\refbutton\
• %programfiles%\comet\products\relatedsearch\
• %programfiles%\comet\products\shared\
• %programfiles%\comet\products\travel\
• %programfiles%\comet\products\webbutton\
• %programfiles%\comet\services\
• %programfiles%\comet\services\messaging\base\
• %programfiles%\comet\services\messaging\campaigns\adzap\
• %programfiles%\comet\services\messaging\listeners\
• %programfiles%\comet\temp\
• %programfiles%\comet\uninstall\
• %programfiles%\comet\core\
• %programfiles%\comet\products\funcursors\
• %programfiles%\comet\products\webcursors\
• %programfiles%\comet\services\addremove\
• %programfiles%\comet\services\messaging\
• %programfiles%\comet\
• %programfiles%\comet systems\
• %programfiles%\screensavers.com\installer\bin\

3. Delete the following malicious registry entries and\or values:

• Key: CLSID\{16bc6464-196a-4bab-a14b-f69f8a0a60f7}
• Key: CLSID\{197ab1d7-a7dd-4c86-a938-1fcc0db21b85}
• Key: clsid\{212b99a1-9cf6-11d3-80b7-0500487bdba}
  Value: @
• Key: clsid\{39e01e09-2b45-11d4-810d-00500487d1c5}
  Value: @
• Key: clsid\{90c61707-c8f8-43db-a25c-c1f4b18ee41e}
• Key: clsid\{c38fc998-3b1b-4f59-a710-5a6c9cf8bd92}
• Key: clsid\{cd74b159-a1d3-11d3-80bc-0500487bdba}
  Value: @
• Key: clsid\{d14d6793-9b65-11d3-80b6-00500487bdba}
• Key: clsid\{da0882fb-49a3-4a9e-bb09-5e15347b5647}
• Key: clsid\{e5c39db-9dcc-11d3-80d6-00500487d1c5}
  Value: @
• Key: clsid\{edc4193f-34ad-4d07-aa87-e3fdb89e3e76}
• Key: clsid\{f59c663d-e891-492c-86e3-0758c71885c2}
• Key: cssecurity.htmlsecurity
• Key: dmproxy.dmproxyctl
• Key: dmserver.dmnotify
• Key: interface\{1e587528-41aa-4f19-97e8-bb75acc3035c}
• Key: interface\{2fcfb3fd-7184-4c42-aed3-30fff0119964}
• Key: interface\{34fdd882-5530-4a90-89cd-416612c8855e}
• Key: interface\{58c59f56-ca66-4b5d-9132-ecea5193be5a}
• Key: interface\{665abe65-2c16-4341-b4b8-01ff799e8f4c}
• Key: interface\{788e0d0e-caf7-473b-9183-76be6d30dc9a}
• Key: interface\{7aa7d1c3-f0f8-460c-936d-b5886d0928eb}
• Key: interface\{832786ec-9632-4919-8972-59f79d621c87}
• Key: interface\{97284959-a553-4576-859c-b3b3ff283de0}
• Key: interface\{a0ca55a1-a112-11d3-80d6-00500487b1c5}
• Key: interface\{a4b977f5-1efc-4da0-b9c2-67c53cba140f}
• Key: interface\{a9e67cbe-7a42-47be-962a-c07e73c34fba}
• Key: interface\{aeb17fc4-2a52-4945-9866-81cc343a59e3}
• Key: interface\{b0e9399e-fe6f-43b0-98d3-2f47080dde4a}
• Key: interface\{bfcbf73b-6eb2-49c1-adca-cf0cd589b140}
• Key: interface\{c4d86dc8-b73b-4470-9914-3dac14ee6f95}
• Key: interface\{dc86768f-5adf-4d84-9de8-fd047b1fe8f5}
• Key: interface\{ddd1e8ca-678d-4c9a-a472-ce9578b14dc5}
• Key: typelib\{32ba13af-001c-456e-8825-8d53077460ac}
• Key: typelib\{5d2d50f6-6be2-41a0-b827-1accd3e2e2f7}
• Key: typelib\{844c39ec-7ea4-4f11-bce6-28404fd768e3}
• Key: typelib\{878ace1b-8db0-4d75-9034-504756ad4215}
• Key: typelib\{8fcd3b3f-6f3e-4bb2-9c37-b03b27f71857}
• Key: software\comet systems\applications\ar
  Value: @
• Key: software\comet systems\applications\ar\library
  Value: @
• Key: software\comet systems\applications\ar\products
  Value: @
• Key: software\comet systems\applications\ar\services
  Value: @
• Key: software\comet systems\applications\ccar
  Value: @
• Key: software\comet systems\applications\ccar\library
  Value: @
• Key: software\comet systems\applications\ccar\products
  Value: @
• Key: software\comet systems\applications\ccar\services
  Value: @
• Key: software\comet systems\iebands\horizontal
  Value: @
• Key: software\comet systems\iebands\vertical
  Value: @
• Key: software\comet systems\products
  Value: @
• Key: cssecurity.htmlsecurity.1
• Key: dmproxy.dmproxyctl.1
• Key: dmserver.dmnotify.1
• Key: software\microsoft\windows\currentversion\explorer\browser helper objects\{35E78239-811E-4c3f-B37D-F339AC16C2C0}
• Key: ScreensaversInstaller.Sinstaller.1
• Key: ScreensaversInstaller.Sinstaller.1\CLSID
• Key: ScreensaversInstaller.Sinstaller
• Key: ScreensaversInstaller.Sinstaller\CLSID
• Key: ScreensaversInstaller.Sinstaller\CurVer
• Key: CLSID\{88D758A3-D33B-45FD-91E3-67749B4057FA}
• Key: CLSID\{88D758A3-D33B-45FD-91E3-67749B4057FA}\ProgID
• Key: CLSID\{88D758A3-D33B-45FD-91E3-67749B4057FA}\VersionIndependentProgID
• Key: CLSID\{88D758A3-D33B-45FD-91E3-67749B4057FA}\InprocServer32
• Key: CLSID\{88D758A3-D33B-45FD-91E3-67749B4057FA}\TypeLib
• Key: ScreensaversInstaller.Installer.1
• Key: ScreensaversInstaller.Installer.1\CLSID
• Key: ScreensaversInstaller.Installer
• Key: ScreensaversInstaller.Installer\CLSID
• Key: ScreensaversInstaller.Installer\CurVer
• Key: Software\Microsoft\Code Store Database\Distribution Units\{88D758A3-D33B-45FD-91E3-67749B4057FA}\InstalledVersion
• Key: CLSID\{722D2939-A14A-41A9-9EAC-AB8F4E295819}
• Key: CLSID\{722D2939-A14A-41A9-9EAC-AB8F4E295819}\ProgID
• Key: CLSID\{722D2939-A14A-41A9-9EAC-AB8F4E295819}\VersionIndependentProgID
• Key: CLSID\{722D2939-A14A-41A9-9EAC-AB8F4E295819}\InprocServer32
• Key: CLSID\{722D2939-A14A-41A9-9EAC-AB8F4E295819}\TypeLib
• Key: Software\Microsoft\Windows\CurrentVersion\Uninstall\ScreensaversInstaller
  Value: DisplayName
• Key: Software\Microsoft\Windows\CurrentVersion\Uninstall\ScreensaversInstaller
  Value: UninstallString
• Key: Software\Microsoft\Code Store Database\Distribution Units\{88D758A3-D33B-45FD-91E3-67749B4057FA}
  Value: SystemComponent
• Key: Software\Microsoft\Code Store Database\Distribution Units\{88D758A3-D33B-45FD-91E3-67749B4057FA}
  Value: Installer
• Key: Software\Microsoft\Code Store Database\Distribution Units\{88D758A3-D33B-45FD-91E3-67749B4057FA}\DownloadInformation
  Value: CODEBASE
• Key: Software\Microsoft\Code Store Database\Distribution Units\{88D758A3-D33B-45FD-91E3-67749B4057FA}\DownloadInformation
  Value: INF
• Key: Software\Screensavers.com\Installer\Tokens
  Value: COMET
• Key: Software\Screensavers.com\Installer\Tokens
  Value: WINDOWS
• Key: Software\Screensavers.com\Installer\Settings
  Value: rangeSize
• Key: Software\Screensavers.com\Installer\Settings
  Value: secNextRangeInterval
• Key: Software\Screensavers.com\Installer\Settings
  Value: tValidHistoryPeriod
• Key: Software\Screensavers.com\Installer\Settings
  Value: tActiveJobPurgePeriod
• Key: Software\Screensavers.com\Installer\Settings
  Value: tTempFilePurgePeriod
• Key: Software\Screensavers.com\Installer\Settings
  Value: prMaxLoad

Warning: if value is listed for some registry entries, you should only clear these values and leave keys with such values untouched. We recommend you to use Comet Systems Removal Tool for safe problem solution.

Here are the descriptions of problems connected with Comet Systems and siuninst.exe we received earlier:

Problem Summary: Windows 2000 servers rebooting

All Windows 2000 with SP4 servers are rebooting without any thing in the logs except that the last shutdown was unexpected

Our support team contacted arif with the solution of the problem described.

Problem in focus: mydoom worm

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