BlackRose Ransomware
Posted: April 18, 2017
Threat Metric
The following fields listed on the Threat Meter containing a specific value, are explained in detail below:
Threat Level: The threat level scale goes from 1 to 10 where 10 is the highest level of severity and 1 is the lowest level of severity. Each specific level is relative to the threat's consistent assessed behaviors collected from SpyHunter's risk assessment model.
Detection Count: The collective number of confirmed and suspected cases of a particular malware threat. The detection count is calculated from infected PCs retrieved from diagnostic and scan log reports generated by SpyHunter.
Volume Count: Similar to the detection count, the Volume Count is specifically based on the number of confirmed and suspected threats infecting systems on a daily basis. High volume counts usually represent a popular threat but may or may not have infected a large number of systems. High detection count threats could lay dormant and have a low volume count. Criteria for Volume Count is relative to a daily detection count.
Trend Path: The Trend Path, utilizing an up arrow, down arrow or equal symbol, represents the level of recent movement of a particular threat. Up arrows represent an increase, down arrows represent a decline and the equal symbol represent no change to a threat's recent movement.
% Impact (Last 7 Days): This demonstrates a 7-day period change in the frequency of a malware threat infecting PCs. The percentage impact correlates directly to the current Trend Path to determine a rise or decline in the percentage.
Threat Level: | 10/10 |
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Infected PCs: | 94 |
First Seen: | April 18, 2017 |
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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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