Most antivirus programs identify msvbcr40.dll as malware—e.g. TrendMicro identifies it as TROJ_DELF.JIC or TROJ_FRAUDPAC.BN, and Microsoft identifies it as TrojanDownloader:Win32/Renos.JM or VirTool:Win32/Obfuscator.CT.
The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.
The msvbcr40.dll process itself does not provide any dependable information about its developer or its associated software.
Description: Msvbcr40.dll is not essential for Windows and will often cause problems. Msvbcr40.dll is located in the C:\Windows\System32 folder.
Known file sizes on Windows 10/8/7/XP are 50,688 bytes (37% of all occurrences), 71,168 bytes, 70,144 bytes, 72,192 bytes or 70,656 bytes.
This is a special .dll file (Dynamic Link Library), which starts automatically when programs are launched. So it can monitor or manipulate all of your program starts. It is a file with no information about its developer. It is located in the Windows folder, but it is not a Windows core file. The program is not visible. The file is not a Windows system file. The service has no detailed description. It monitors program starts. Therefore the technical security rating is 91% dangerous.
Recommended: Identify msvbcr40.dll related errors
Important: You should check the msvbcr40.dll process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.
The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active msvbcr40 process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the msvbcr40.dll on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.
A clean and tidy computer is the key requirement for avoiding PC trouble. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.
Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.