Most antivirus programs identify mravsc32.exe as malware—e.g. TrendMicro identifies it as WORM_SDBOT.GAV or TROJ_CORRP.MCS, and Microsoft identifies it as Worm:Win32/Spybot or Backdoor:Win32/IRCbot.
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The process does not contain any indication of the producer (the software author) or the software with which it is associated.
Description: Mravsc32.exe is not essential for Windows and will often cause problems. The file mravsc32.exe is located in a subfolder of C:\Windows\System32.
Known file sizes on Windows 10/8/7/XP are 385,536 bytes (27% of all occurrences), 74,374 bytes and 7 more variants.
The process has no file description. The file is located in the Windows folder, but it is not a Windows core file. The program has no visible window. The file is not a Windows system file. Mravsc32.exe is able to hide itself and monitor applications. Therefore the technical security rating is 78% dangerous.
Recommended: Identify mravsc32.exe related errors
Important: You should check the mravsc32.exe 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 mravsc32 process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the mravsc32.exe 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.