Virus and Spyware Removal Guides, uninstall instructions

What is webcrawler.com?

webcrawler.com is a high-quality Internet search engine very similar to sites such as Yahoo, Bing, Google, etc. The website itself is legitimate, however, it is used by browser-hijacking websites/applications that modify browser options and cause unwanted redirects.

What is Trojan:O97M/DPLink.A?

"Trojan:O97M/DPLink.A" is the code name of a trojan-type virus, however, some users encounter messages (delivered by Microsoft Windows Defender) stating that the system is infected with a "Trojan:O97M/DPLink.A" error (even when there is no such error). This scan result is called a false positive.

What is You Are Today's Lucky Visitor?

"You Are Today's Lucky Visitor" is a deceptive pop-up message displayed by malicious websites. Users often visit this website inadvertently - redirected by potentially unwanted adware-type programs (PUPs). These programs often infiltrate the system during installation of free software.

As well as causing unwanted redirects, adware might also track the web browsing activity and deliver intrusive online advertisements.

What is RaRansomware?

RaRansomware is a ransomware-type virus discovered by malware security researcher, Karsten Hahn. Once infiltrated, RaRansomware encrypts most stored files using AES-128 and RSA-1028 encryption algorithms. During encryption, RaRansomware renames each file using the "[16_random_characters].EGENH" pattern.

For instance, "sample.jpg" might be renamed to a filename such as "NGBaAGoAcCBnAA==.EGENH". Updated variants of this ransomware use ".KUAJW" extension for encrypted files. Following successful encryption, RaRansomware generates an HTML file ("RaRansomware - Recovery instructions.html") and places a copy in each existing folder.

What is Microsoft Alert Your Data Is At High Risk?

"Microsoft Alert Your Data Is At Risk" is another fake error similar to Computer Detected To Be Corrupted, Windows Malware Detected, Computer Detected To Be Corrupted, and many others.

Cyber criminals deliver this error using various deceptive websites that users often visit inadvertently - they are redirected by unwanted programs or intrusive ads (displayed on other untrustworthy sites). Research shows that many unwanted apps infiltrate systems without consent.

Furthermore, these programs deliver intrusive ads and monitor web browsing activity by recording various sensitive information.

What is Attention Your Computer Has Been Infected?

Similar to Your Computer Might Be Infected By Trojans, Computer Detected To Be Corrupted, Spyware Detected On Your Computer!, and many others, "Attention Your Computer Has Been Infected" is a fake error message displayed by deceptive websites.

In most cases, users visit these sites inadvertently - they are redirected by intrusive advertisements (delivered by other rogue sites) or potentially unwanted programs (PUPs) that infiltrate systems without permission. As well as causing redirects, potentially unwanted programs deliver intrusive advertisements and record user-system information.

What is letitbefaster.world?

letitbefaster.world is a deceptive site that displays a fake error message. Users typically visit this site inadvertently - they are redirected by potentially unwanted adware-type programs.

Adware is very likely to infiltrate systems without users' permission. Furthermore, as well as causing redirects, these potentially unwanted programs (PUPs) deliver intrusive advertisements and gather various sensitive information.

What is KyMERA?

Discovered by malware security researcher, Michael Gillespie, KyMERA is a ransomware-type virus that stealthily infiltrates the system and locks most stored files.

Unlike other ransomware viruses, KyMERA does not encrypt data. This malware compresses each file to a password-protected zip archive. It also appends filenames with the "locked.zip" extension (for instance, "sample.jpg" is renamed to "sample.jpg locked.zip"). KyMERA then opens a pop-up window that contains a ransom-demand message.

What is Fortnite virus?

The Fortnite virus delivers various intrusive advertisements that significantly diminish the browsing experience. To infiltrate systems, research shows that this virus disguises itself as a cheating app for a popular recent PC game, Fortnite.

What is search.sleepshadow.com?

search.sleepshadow.com is a fake search engine identical to search.stosgame.com, search.altagit.com, search.pitchofcase.com, and many others. Judging on the appearance alone, search.sleepshadow.com barely differs from Yahoo, Bing, Google, and other legitimate search engines.

Therefore, many users believe that this site is also legitimate. In fact, developers promote search.sleepshadow.com using a browser-hijacking application called Sleepshadow. Furthermore, search.sleepshadow.com and Sleepshadow record information relating to web browsing activity.