As a rule, emails used to deliver malware are disguised as important, official letters from legitimate companies, organizations, or other entities. The main purpose of these emails is to trick recipients into opening a malicious attachment or a file downloaded via the provided website link. By ope
"B, S, Tab, A, F, Enter" is a CAPTCHA scam. This scheme appears as a pop-up window requesting users to verify that they are not a robot. The genuine CAPTCHA ("Completely Automated Public Turing test to tell Computers and Humans Apart") is a challenge-response test to determine whether the user is
ExpandedActivity is designed to display unwanted advertisements and promote a fake search engine by modifying browser's settings. In other words, ExpandedActivity is designed to function as an adware-type application and a browser hijacker. Like most apps of this type, it is distributed using de
Typically, ransomware encrypts files and provides contact information. It is also common that malware of this type renames encrypted files (for example, it appends its extension to their filenames). Karen ransomware creates the "README.txt" text file and appends the ".karen" extension (e.g., it re
Belonging to the Dharma ransomware family, C0v is a malicious program designed to encrypt files and demand payment for the decryption. In other words, victims cannot access the data affected by C0v, and they are asked to pay a ransom - to restore access to it. During the encryption process, files
MOSN is a piece of malicious software classified as ransomware. It operates by encrypting the data stored on infected systems and demands payment for the decryption. In other words, victims cannot access the files affected by MOSN, and they are asked to pay - to recover access to their data. Duri
Loki Locker prevents victims from accessing their files by encrypting them. Also, it renames all encrypted files, changes the desktop wallpaper, displays a pop-up window, and creates the "Restore-My-Files.txt" text file. Loki Locker's wallpaper, pop-up window, and text file contain instructions on
MainCharacterSearch displays advertisements and changes a browser's homepage, the default search engine, and new tab. It has the qualities of advertisement-supported software and a browser hijacker. It is known that MainCharacterSearch is distributed via a fake installer. Therefore, it is very u
CheckAMap is a potentially unwanted application (PUA) that modifies a web browser's settings. The primary purpose of this browser hijacker is to promote the checkamap.com address, a fake search engine. CheckAMap and other apps of this type are categorized as PUA because users rarely install them i
TopSearchStreams is a browser hijacker promoting the topsearchstreams.com search engine. It makes changes to browser settings to promote its web searcher. Additionally, TopSearchStreams likely has data tracking abilities. Since most users download/install browser hijacker unintentionally, they are