Akira Ransomware
Posted: September 1, 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: | 33 |
First Seen: | September 1, 2017 |
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Last Seen: | July 3, 2021 |
OS(es) Affected: | Windows |
The Akira Ransomware is a Trojan that locks media files on your computer such as videos. While its development is unfinished, the Trojan has a working encryption feature and may cause permanent damage to the saved data of an infected PC. Allow your anti-malware programs to delete the Akira Ransomware proactively or remove it as soon as possible afterward, and keep backups on another device for easy restoration.
A Trojan with a Narrow Plan of Attack
Caught in what seems to be the middle of its development process, the Akira Ransomware is a threat that can lock files according to their formats and locations with its encoding feature. The broadly applicable and flexible nature of such an attack, as well as the ease of updating it, makes the Akira Ransomware into a potential security risk for any files on an infected PC or local, unprotected networks. Despite its sophisticated encoding setup, the Akira Ransomware isn't a member of a family previously known to malware experts, such as Hidden Tear or the Globe Ransomware.
The Akira Ransomware's current parameters specify encrypting only the contents of the user's Video folders, which appears to be for testing purposes with later expansion intended. Similar threats often also attack content stored in other profiles related to Windows user profiles, such as Downloads, as well as the desktop. The Akira Ransomware also filters out files according to format (such as GIF pictures and TXT documents). Media that does match every prerequisite is encoded with a cipher to prevent their opening, and malware experts can't yet determine whether this encryption is breakable by third parties.
The Akira Ransomware also includes the traditional extension-appending function that most file-encrypting Trojans deliver, by adding '.akira' to the end of each file's name. However, it doesn't generate a ransom-themed pop-up and doesn't drop a text message containing any instructions on how to unlock your content.
Safe Video Storage Versus Trojan-Enabled Robbery
Almost all file-encoding Trojans include some form of extortionist demands in their payloads eventually, with the encrypted media serving as collateral to pressure the victims into paying with crypto currencies or vouchers. Only a few seconds of changes to its code could let the Akira Ransomware attack files other than those specified previously, and the uncertainty of its encryption algorithm of choice may mean that decryption is never available for free. As preventative maintenance, victims can keep their movies and other content safe by copying them to backups outside of the Akira Ransomware's purview, such as a cloud server, a DVD or a USB drive.
Malware researchers often find Trojans of similar design to the Akira Ransomware circulating in email attachments that threat actors craft to be of particular interest to their targets. Other exploits also of note include brute-forcing passwords, abusing RDP features, and, in lesser cases, bundling the Trojan's installer with other downloads. Fortunately, almost all anti-malware programs should delete the Akira Ransomware straightforwardly; in current samples, this Trojan lacks any defenses against being uninstalled and makes no effort to obfuscate its payload.
The Akira Ransomware may just be a case of a programmer testing encryption features without planning to put those attacks into action against the general public. However, even if the Akira Ransomware fails to define itself as competition in an industry basing itself on damaging files for extortion, it has limitless counterparts who will take its place.
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