{"id":25816,"date":"2022-01-20T12:05:37","date_gmt":"2022-01-20T06:35:37","guid":{"rendered":"http:\/\/198.58.113.91\/blog\/?p=25816"},"modified":"2022-08-21T00:07:34","modified_gmt":"2022-08-20T18:37:34","slug":"startupchecklibrary-winscomrssrv-dll-missing-error-startup","status":"publish","type":"post","link":"https:\/\/www.winhelponline.com\/blog\/startupchecklibrary-winscomrssrv-dll-missing-error-startup\/","title":{"rendered":"[Fix] StartupCheckLibrary.dll and Winscomrssrv.dll Error at Startup"},"content":{"rendered":"

When you log in to your Windows computer, the following error message windows may pop up:<\/p>\n

RunDLL\r\n\r\nThere was a problem starting StartupCheckLibrary.dll\r\n\r\nThe specified module could not be found.<\/pre>\n
<\/p>\n
RunDLL\r\n\r\nThere was a problem starting winscomrssrv.dll\r\n\r\nThe specified module could not be found.<\/pre>\n
\"startupchecklibrary.dll
\nAdditionally, you may see the following error:<\/p>\n
There was a problem starting StartupCheckLibrary.dll\r\n\r\nOperation did not complete successfully because the file contains a virus or potentially unwanted software.<\/pre>\n
\"startupchecklibrary.dll<\/p>\n
Cause<\/h2>\n
The modules StartupCheckLibrary.dll and Winscomrssrv.dll are 100% malicious programs that can steal information from your computer. You do NOT<\/strong> need these files on your computer. The related module winlogui.exe<\/code> is a coin miner trojan. These kinds of programs come with illegal\/cracked computer software and video games.<\/p>\n
\"startupchecklibrary.dll
VirusTotal.com results for the StartupCheckLibrary.dll<\/a> module<\/figcaption><\/figure>\n
This malware can disable the Microsoft Defender anti-virus and perform other configuration changes on the computer. The script (maintenance.vbs<\/code>) will drop the coin miner trojan named winlogui.exe in the Windows\\System32<\/code> folder and then do a cleanup of all malicious files (maintenance.vbs<\/code>, Winscomrssrv.dll<\/code>, startupchecklibrary.dll<\/code>, etc.)<\/p>\n
In some cases, the Microsoft Defender security options may turn blank<\/a> and only display the “Security at glance” message after infection. Refer to the article Windows Defender Service Missing; Security at a glance page is Empty<\/a>.<\/p>\n
The malware files run at startup via scheduled tasks instead of the regular<\/a> startup locations<\/a> in the registry or Startup folder.<\/p>\n
The modules StartupCheckLibrary.dll and Winscomrssrv.dll have the “Microsoft Corporation” name in the DLL properties. But these are fake and unsigned modules that try to pose as legitimate Microsoft files.<\/p>\n
Copyright: \u00a9 Microsoft Corporation. All rights reserved.\r\nProduct: Microsoft\u00ae Windows\u00ae Operating System\r\nDescription: Startup Check Library DLL\r\nOriginal Name: StartupCheckLibrary.dll\r\nFile Version 10.0.16299.15\r\n\r\nCopyright: Microsoft Corporation. All rights reserved.\r\nProduct Name: Microsoft Windows Operating System\r\nDescription: winscomrssrv\r\nOriginal Name: winscomrssrv.dll\r\nFileVersion: 10.0.16299.15<\/pre>\n
(Malwarebytes anti-virus classifies these types of files as Trojan.FakeMS<\/a><\/em>)<\/p>\n
Microsoft Defender may successfully thwart the attack. Trojan:Win32\/Tiggre!plock<\/strong> is the name that Microsoft has assigned to the trojan. Here’s an instance where Microsoft Defender antivirus has successfully blocked the modules StartupCheckLibrary.dll<\/code> and Winscomrssrv.dll<\/code>.<\/p>\n
\"startupchecklibrary.dll<\/p>\n
 <\/p>\n
Fix: StartupCheckLibrary.dll and Winscomrssrv.dll Error at Startup<\/h2>\n
Even if Microsoft Defender has successfully eliminated or quarantined the malware files, it’s advisable to run a thorough scan using a third-party scanner like Malwarebytes Antimalware (free) and perhaps with Malwarebytes Anti Rookit<\/a>.<\/p>\n
A thorough scan with updated definition files should eliminate all traces of the malware from the file system and the registry.<\/p>\n
\"startupchecklibrary.dll<\/p>\n
Here are some of the important items that would be cleared:<\/p>\n
Scheduled Tasks<\/h4>\n