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- KASPERSKY FLASH DRIVE ANTIVIRUS UPDATE
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Our security researchers recommend using Combo Cleaner. To eliminate possible malware infections, scan your computer with legitimate antivirus software. Additional password-stealing trojans and malware infections can be installed together with a ransomware infection. Infected email attachments (macros), torrent websites, malicious ads.Īll files are encrypted and cannot be opened without paying a ransom.
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This malware is designed to show a fake Windows Update window and modify the Windows "hosts" file to prevent users from accessing cyber security websites ( more information below). Cyber criminals demand payment of a ransom (usually in bitcoins) to unlock your files.
A ransom demand message is displayed on your desktop.
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Threat Summary: NameĪvast (Win32:PWSX-gen ), Combo Cleaner (Gen:Variant.Midie.104722), ESET-NOD32 (A Variant Of Win32/Kryptik.HNLB), Kaspersky (UDS:), Microsoft (Trojan:Win32/CryptInject.FB!MTB), Full List Of Detections ( VirusTotal)Ĭannot open files stored on your computer, previously functional files now have a different extension (for example, my.docx.locked). Examples of unreliable sources are Peer-to-Peer networks, unofficial pages, third-party downloaders, free file hosting pages. Malicious files downloaded from unreliable sources infect computers when users open them. Fake updaters usually are legitimate-looking tools that never update or fix any software.įake updaters inject malware instead of fixing or updating software or exploit vulnerabilities in outdated programs. Moreover, they often are bundled with ransomware and other malware. Software cracking tools are supposed to bypass software activation (to activate legitimate software for free). Recipients infect computers by opening malicious files downloaded from/through those emails. Emails that can be the reason behind computer infections contain links or attachments. Most ransomware infections are caused through emails, Trojans, fake updaters, software cracking tools (or installers for pirated software), files downloaded from untrustworthy sources. More ransomware examples are Robm, Steriok, and Lockfile (MedusaLocker).
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Most ransomware variants provide instructions on how to contact the attackers for data recovery.
In most cases, ransomware victims cannot open their files until they are decrypted with the right decryption tools. Malware of this type could spread itself further (infecting other computers on a local network) or encrypt more files. It is also recommended to remove ransomware from the infected device as soon as possible. It is not recommended to pay cybercriminals a ransom because they might not provide a decryption tool (or tools) even after payment. It is impossible to recover files for free/without paying a ransom unless victims have a data backup or can download a free decryption tool from the Internet. It also encourages victims to contact the attackers within 72 hours because later, the price of decryption tools will be $980 instead of $490. It instructs victims to contact cybercriminals using email address. The "_readme.txt" file provides contact and payment information. Screenshot of files encrypted by Rigj ransomware: Also, Rigj creates a ransom note, the " _readme.txt" file. For example, it renames a file named " 1.jpg" to " 1.jpg.rigj", " sample.jpg" to " ". It prevents victims from accessing their files by encrypting them and appends the ". This ransomware variant belongs to a family of ransomware called Djvu.