We have analyzed ransomware samples on VirusTotal and discovered a new Djvu ransomware variant called Fhkf. While testing this variant, we found out that it encrypts files (and modifies filenames) and creates the "_readme.txt" file containing a ransom note. It also appends the ".fhkf" extension to
During a routine search into the newest malware samples uploaded to VirusTotal, we discovered and afterwards analyzed the 2wfv1 ransomware. This malicious program is designed to encrypt data (lock files) and demand payment for the decryption. Following successful installation on our test machine,
Once we installed the PremiumSearch application, we saw that it changed specific web browser's settings to premiumsearch.xyz - a search engine that shows results generated by Bing (bing.com). For this reason, we can state that it is a browser hijacker promoting a fake search engine. We hav
Put Darker is a rogue browser extension endorsed as a tool that can enable dark mode on simple websites. Instead, our researchers found that this piece of software operates as a browser hijacker. Put Darker extension modifies browsers to promote the kmmx49.com fake search engine. Following
During a routine investigation into new malware samples submitted into VirusTotal, our researchers detected and subsequently analyzed the KMA47 ransomware. It encrypts data (renders files inaccessible) and demands a ransom for the decryption (access recovery). The researched sample renamed files
After downloading and launching ExpressDefault's sample, our researchers found it to be an adware-type app. In other words, it runs intrusive advertisement campaigns (displays various ads). We also determined that ExpressDefault belongs to the AdLoad malware family. Furthermore, it may exhibit
After installing the Easy-Search application, we have noticed that it has changed the web browser's settings (and did not allow to modify them) to easysearch.club - a search engine that shows results generated by Bing (bing.com). Thus, it can be stated with certainty that Easy-Search is a browser
PDFConverterSearchNow is a rogue browser extension. After analyzing it, our researchers have concluded that this piece of software operates as a browser hijacker. PDFConverterSearchNow changes browser settings and promotes the pdfconvertersearchnow.com fake search engine. On our test syste
We discovered AMC ransomware while inspecting ransomware samples submitted to VirusTotal. While analyzing the AMC ransomware sample, we saw that it encrypts files and appends a different extension (containing four random characters) to filenames. For example, AMC has renamed "1.jpg" file to "1.jp
When inspecting recently submitted ransomware samples to VirusTotal, we discovered and analyzed a new variant named 4ywda. This malicious program is designed to encrypt data (lock files) and demand payment for the decryption. During our analysis, it appended affected files with a random character