The Kuub Ransomware is a file-locker Trojan from a Ransomware-as-a-Service known as the STOP Ransomware or Djvu Ransomware. It can block files by using an encryption technique that, in most cases, is secure from cracking by a third party. Users should, if possible, avoid the ransom instead of restoring from a backup, and use anti-malware solutions for preventing and removing the Kuub Ransomware infections.
A Neverending Family's Hunger for Ill-Gained Bitcoins
The ever-growing proof of Ransomware-as-a-Service's profitability, the STOP Ransomware, is retaining its breakneck expansion. As evidence of the illicit business's viable nature, new attacks by the Kuub Ransomware are showing the same encrypt-and-ransom strategy as its ancestors. Although malware analysts can't confirm a version yet, it's not likely that the Kuub Ransomware is using outdated, file-locking keys that are compatible with the easiest, free decryptors.
The Kuub Ransomware's family includes more members than any single article can list, although typical examples run from the recent Noos Ransomware and the Kvag Ransomware back to early progenitors, like the Djvu Ransomware and the Promock Ransomware. If it contacts its C&C server, it downloads an RSA code that serves as its protection for the primary, file-locking mechanism, which runs based on an AES algorithm. However, even without that information, it still blocks files – just with slightly-less-secure encryption.
Some of the symptoms that any user should be familiar with for the Kuub Ransomware's family are consistent across all constituent members. The Kuub Ransomware can create text messages for its ransom note: a text that sells the criminal's unlocking aid for Bitcoins, although the service isn't always (or often) reliable. The Kuub Ransomware also adds a new extension into the filenames of what it locks, as per its name. Less obviously than that, it also can drop spyware for collecting the victim's passwords or erase Windows backups.
Putting the 'STOP' to the Growth of a STOP Ransomware Newborn
Young versions of the STOP Ransomware's Ransomware-as-a-Service can spread through any means that the criminal that's hiring the family favors. Campaigns that malware analysts have looked at, despite this business model, express some distribution preferences. The Kuub Ransomware is most likely to be circulating, at least partially, throughout Asian nations, including India, the Philippines and Indonesia. It also may infect PCs through torrents and illegal download resources.
Users can exercise safe file-downloading behavior and self-control around offers of illicit digital goods for avoiding many infection vectors. Admins for servers, also, are at high risk of infection particularly, if they don't maintain a bare-minimum of security standards, such as changing out factory-setting passwords and turning off RDP. The Kuub Ransomware's attacks can affect most formats of files of any value to the users, even though they don't damage the OS intentionally.
Anti-malware solutions offer additional, and consistently-effective, protection against all versions of the STOP Ransomware. Users benefiting from that protection should block most infection exploits and should have no problems uninstalling the Kuub Ransomware in a system scan.
From the original STOP Ransomware up to the present-day the Kuub Ransomware, the self-induced problem remains the same. A backup always is worth the bother of setting up, especially when not just files, but money is on the table.
Use SpyHunter to Detect and Remove PC Threats
If you are concerned that malware or PC threats similar to Kuub Ransomware may have infected your computer, we recommend you start an in-depth system scan with SpyHunter. SpyHunter is an advanced malware protection and remediation application that offers subscribers a comprehensive method for protecting PCs from malware, in addition to providing one-on-one technical support service.
Why can't I open any program including SpyHunter? You may have a malware file running in memory that kills any programs that you try to launch on your PC. Tip: Download SpyHunter from a clean computer, copy it to a USB thumb drive, DVD or CD, then install it on the infected PC and run SpyHunter's malware scanner.