Disk Optimizer

Disk Optimizer Description

Disk Optimizer (DiskOptimizer) as its name indicates, is a system defragmenter and optimizing tool. However this is not a normal optimizing tool; this one was especially created by criminals to swindle gullible users. Disk Optimizer can enter a system via Trojans or malicious websites. When inside, Disk Optimizer will run a system scan which will appear to scan the hard drive and memory before producing fabricated results. Once the scan is done Disk Optimizer will display the following message "11 Errors detected! Defragmentation is required".

Disk Optimizer may also prevent a victim from accessing applications including Registry Editor and Task Manager. A victim may also experience frequent redirects to malicious websites promoting Disk Optimizer or the victim will be blocked from other security websites. Do not allow Disk Optimizer to scare you into purchasing its non-existent full version. Do not believe any of the scan or error reports generated by this rogue, instead use a recognized rogueware removal tool to extinguish Disk Optimizer from your PC.
Aliases: a variant of Win32/Kryptik.JRI [NOD32], Cryptic.BXE [AVG], FraudTool.Win32.FakeAV.hdd (v) [VIPRE], Mal/FakeAV-EA [Sophos], Medium Risk Malware [Prevx], Packer.Win32.Agent.bk [Rising], Trojan.Agent/Gen-FakeSoft [SUPERAntiSpyware], Trojan.Agent/Gen-FraudWare [SUPERAntiSpyware], Trojan:Win32/FakeSysdef [Microsoft] and W32/Krap.AON!tr [Fortinet].

Infected with Disk Optimizer? Scan Your PC for Free

Download SpyHunter’s Spyware Scanner
to Detect Disk Optimizer

Security Doesn't Let You Download SpyHunter or Access the Internet?


Solutions: Your computer may have malware hiding in memory that prevents any program, including SpyHunter, from executing on your computer. Follow to download SpyHunter and gain access to the Internet:
  • Use an alternative browser. Malware may disable your browser. If you're using IE, for example, and having problems downloading SpyHunter, you should open Firefox, Chrome or Safari browser instead.
  • Use a removable media. Download SpyHunter on another clean computer, burn it to a USB flash drive, DVD/CD, or any preferred removable media, then install it on your infected computer and run SpyHunter's malware scanner.
  • Start Windows in Safe Mode. If you can not access your Window's desktop, reboot your computer in 'Safe Mode with Networking' and install SpyHunter in Safe Mode.
  • IE Users: Disable proxy server for Internet Explorer to browse the web with Internet Explorer or update your anti-spyware program. Malware modifies your Windows settings to use a proxy server to prevent you from browsing the web with IE.

If you still can't install SpyHunter? View other possible causes of installation issues.

Technical Information

Infection Statistics


Our MalwareTracker shows malware activity across the world. Explore real-time data of Disk Optimizer outbreaks and other threats from global to local level.

File System Details

Disk Optimizer creates the following file(s):
# File Name Size MD5 Detection Count
1 Uninstall Disk Optimizer.lnk 103
2 %AllUsersProfile%\Application Data\oyVxqDdzcBhxzpC.exe 382,976 6f869870d0ccb2ec1cca7ddec75232e1 37
3 %AllUsersProfile%\Application Data\FCfUcyewLU.exe 478,720 86ea3641fb8b7b93cb5c245a98861d00 34
4 %AllUsersProfile%\Application Data\CiOCLFAGVr.dll 427,520 ad3cf4481aa53448b3dd40ada60a19f6 31

Site Disclaimer

Leave a Reply

IMPORTANT! To be able to proceed, you need to solve the following simple math.
Please leave these two fields as-is:
What is 5 + 6 ?