Virus and Spyware Removal Guides, uninstall instructions

What is oc-protection[.]com?

There are many websites similar to oc-protection[.]com on the internet. Generally, they display fake virus notifications to trick users into installing potentially unwanted applications (PUAs), which remove viruses supposedly detected on devices by the web pages.

Note that users do not often visit pages such as oc-protection[.]com intentionally - typically, they are opened via clicked deceptive ads, visited untrusted web pages or PUAs already installed on the system.

What is Gcahvv ransomware

Gcahvv is malicious software belonging to the Snatch ransomware family. Systems infected with this malware experience data encryption and users receive ransom demands for decryption. During the encryption process, all affected files are appended with the ".gcahvv" extension.

For example, a file originally named something like "1.jpg" would appear as "1.jpg.gcahvv" following encryption. Once this process is complete, ransom messages within "HOW TO RESTORE YOUR FILES.TXT" files are dropped into compromised folders.

What is TrustedUpdater?

TrustedUpdater is classified as adware because it serves advertisements. It also functions as a browser hijacker and changes certain browser settings to the address of a fake search engine. It is very likely that TrustedUpdater will also collect details relating to users' browsing activities and other details.

In most cases, users download and install adware inadvertently and, therefore, these apps are classified as potentially unwanted applications (PUAs).

What is DeviceHelper?

DeviceHelper is a rogue application categorized as adware. Additionally, this app has browser hijacker traits. It runs intrusive ad campaigns and makes alterations to browser settings to promote fake search engines. DeviceHelper promotes d2sri.com on Safari browsers and search.basicgeneration.com on Google Chrome.

Most adware-type apps and browser hijackers collect browsing-related information. Due to the dubious methods used to proliferate DeviceHelper, it is classified as a Potentially Unwanted Application (PUA). This software has been observed being proliferated via fake Adobe Flash Player updates.

Bogus software updaters/installers are used to spread PUAs and also Trojans, ransomware and other malware.

What is Tasco email virus?

Generally, malspam emails are disguised as official messages from legitimate companies and contain an attachment or download link for a malicious file. Cyber criminals send these emails to trick recipients into executing the malicious file, which then installs malware.

In this particular case, they attempt to trick recipients into downloading and executing a file that installs a Remote Access Trojan called Agent Tesla.

What is MUST ransomware?

MUST is a malicious program, which is part of the Dharma ransomware family. Systems infected with this malware have their data encrypted and users receive ransom demands for decryption.

During the encryption process, all compromised files are renamed following this pattern: original name, unique ID assigned to the victim, cyber criminals' email address and the ".MUST" extension. For example, a file named "1.jpg" would appear as something similar to "1.jpg.id-C279F237.[James2020m@aol.com].MUST" following encryption.

Once this process is complete, random-demand messages are displayed in a pop-up window and "FILES ENCRYPTED.txt" text file.

What is TotalProjectSearch?

TotalProjectSearch is an adware-type application with browser hijacker traits. It operates by delivering intrusive advertisements and makes modifications to browser settings to promote fake search engines. Additionally, adware and browser hijackers collect browsing-related information.

Due to the dubious proliferation techniques used to distribute TotalProjectSearch, it is also classified as a Potentially Unwanted Application (PUA). One of the distribution methods employed for this app is via fake Adobe Flash Player updates. Bogus software updaters/installers proliferate PUAs and also malware (e.g. Trojans, ransomware, etc.).

What is Vvoa?

VVoa belongs to the Djvu ransomware family. It encrypts victims files and renames them by appending its extension to filenames. It also creates the "_readme.txt" text file in all folders that contain encrypted files. VVoa renames files by appending ".vvoa" as the file extension.

For example, "1.jpg" is renamed to "1.jpg.vvoa", "2.jpg" to "2.jpg.vvoa", and so on. The ransom message ("_readme.txt") contains details such as cost of a decryption tool and how to contact the developers.

What is Converterz-Search?

Converterz-Search is a browser hijacker designed to modify browser settings to promote converterzsearch.com (a fake search engine). Additionally, software of this type usually has data tracking capabilities, which are used to monitor users' browsing activity.

Converterz-Search is no exception to this, and does so as well. Due to the dubious methods employed to proliferate this browser hijacker, it is also classified as a Potentially Unwanted Application (PUA).

What is SectionBuffer?

SectionBuffer is an adware-type app with browser hijacker characteristics. Following successful infiltration, this application delivers intrusive ad campaigns and makes modifications to browser settings to promote fake search engines. Additionally, adware-type apps and browser hijackers typically monitor users' browsing activity.

Since most users download/install SectionBuffer inadvertently, it is also classified as a Potentially Unwanted Application (PUA).