Amnesia 2 Ransomware
Posted: June 2, 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: | 28 |
First Seen: | May 2, 2017 |
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OS(es) Affected: | Windows |
The Amnesia Ransomware first surface at the beginning of May, and about a month later the original authors have released a successor dubbed the Amnesia 2 Ransomware. This new version does not appear to feature any major changes in terms of the core features of the file-locking Trojan, but it uses a different ransom message style and contents, as well as two separate extensions to mark the locked files. Users whose files have been taken hostage by the Amnesia 2 Ransomware may notice that many of their documents, images, audio files, small videos, spreadsheets, and other files have either the '.01' or '.02' extensions appended to their names. The original names of the files are not preserved so that it may be very difficult for victims to determine how much of their important data was taken hostage by the Amnesia 2 Ransomware. In addition to encrypting and renaming files, the Amnesia 2 Ransomware also makes sure to provide the victim with instructions on how to get their data back. Unsurprisingly, the road to recovery is not a free one, and users who open the 'RECOVER-FILES.HTML' will find out that the threat's authors demand a ransom sum of 0.5 BTC.
The ransom note features a contact form that also allows victims to attach one file. According to the message, the Amnesia 2 Ransomware's operators are willing to decrypt one file for free to proof that they'll restore all data as soon as they receive the money they ask for. If your data has been taken hostage by the Amnesia 2 Ransomware, then we advise you to take advantage of the offer, but it is not recommended to pay the ransom sum of 0.5 BTC. The money might be used to fund more sophisticated file-encryption Trojans, and even with one file decrypted for free, you still can't be sure that the attackers will give back the rest of your files.
The best solution when dealing with crypto-threats is to run an anti-malware tool to detect and remove all corrupted files from the computer. Sadly, due to the nature of ransomware attacks, removing the source of the problem does not recover the locked files back to their regular state. That's why it is recommended to use 3rd-party file recovery utilities and techniques to recover from the attack at least partially.
Technical Details
File System Modifications
Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.
The following files were created in the system:file.exe
File name: file.exeSize: 66.56 KB (66560 bytes)
MD5: 168ec5747fb3bf62aef3a3d36976aefd
Detection count: 87
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: May 29, 2017
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