Most antivirus programs identify AES256.dll as malware.
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The process AES256.dll has no company information.
Description: AES256.dll is not essential for Windows and will often cause problems. AES256.dll is located in a subfolder of C:\Windows\System32.
Known file sizes on Windows 10/8/7/XP are 204,800 bytes (30% of all occurrences), 213,623 bytes and 8 more variants.
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. There is no description of the program. The program is not visible. AES256.dll is able to record keyboard inputs. There is no detailed description of this service. The AES256.dll file is not a Windows core file. Therefore the technical security rating is 100% dangerous.
Recommended: Identify AES256.dll related errors
If AES256.dll is located in a subfolder of C:\Windows, the security rating is 100% dangerous. The file size is 254,055 bytes. There is no file information. The program has no visible window. It is able to record keyboard inputs. The service has no detailed description. It is not a Windows core file.
Important: You should check the AES256.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: ASecurity Task Manager examines the active AES256 process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the AES256.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 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.