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BlackRose Ransomware

Posted: April 18, 2017

Threat Metric

Threat Level: 10/10
Infected PCs: 94
First Seen: April 18, 2017
OS(es) Affected: Windows

The BlackRose Ransomware is a threat that appears to originate from Taiwan, and it works in a well-known manner typical for crypto-threats – it encrypts the files of victims and then asks them to pay money in exchange for decryption instructions. The ransom fee that the BlackRose Ransomware demands is 1 BTC and the good news is that users whose files were locked by the BlackRose Ransomware will not have to send any money to the attackers or contact them at all. The reason for this is simple - the BlackRose Ransomware is based on HiddenTear, an open-source ransomware project which uses a flawed encryption key generation algorithm intentionally. Due to this, all HiddenTear-based ransomware are decryptable with the assistance of free decryption utilities that can be found on the Internet. Unsurprisingly, the author of the BlackRose Ransomware hasn't bothered to change anything in the way the threat locks the files, therefore making it possible for victims to recover from the attack for free.

Despite the free decryptor, getting the BlackRose Ransomware on your computer might seem scary at first since this threat can cause a lot of damage in a short amount of time. Apart from encrypting documents, photos, images, archives, databases, and other commonly used files, the BlackRose Ransomware also will rename the locked files by appending a randomly chosen extension from these four - '.ranranranran,' '.okokokokok,',\ '.loveyouisrael' and '.whatthefuck.' After the encryption is complete, the BlackRose Ransomware will drop the ransom message READ_IT_FOR_GET_YOUR_FILE.txt to the desktop folder. The message is rather short and asks users to pay 1 BTC and contact black-rose@outlook.com.th for additional instructions.

'Files has been encrypted
Send me some 1 bitcoins or more to Address BITCOIN :
3Q2hTDPt1LMAAgQsNQAPJQxb9ZiwA*****
After Payment bitcoin please send your Address Bitcoin Payment to me at
black-rose@outlook.co.th
I will give File Decryptor for you in 24HR...'

If you believe that you can't access your files due to the BlackRose Ransomware's encryption, then you'll be glad to hear that recovering from the attack is a 2-step and straightforward process. Start by running an anti-virus scanner that can help remove the BlackRose Ransomware's files, and then use the free HiddenTear decryptor to get your files back to normal.

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