JohnyCryptor Ransomware
Posted: May 26, 2016
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 |
---|---|
Infected PCs: | 358 |
First Seen: | May 26, 2016 |
---|---|
Last Seen: | September 25, 2022 |
OS(es) Affected: | Windows |
The JohnyCryptor Ransomware is a Trojan that uses encryption technology to modify and block your files temporarily, holding them hostage until you pay some form of ransom. The encrypted data is identifiable from the characteristic name changes, and occasionally may be decrypted by the free software developed by any of several PC security organizations. Rely on your proven anti-malware technology for removing the JohnyCryptor Ransomware, as well as data storage redundancy for keeping its attacks from causing any permanent harm.
The Johnny You'll Never Want to Come Calling
The effort put into designing a fully-featured threat program may be too much for the average con artist, with many of them taking shortcuts to minimize the hard work of programming. Nowhere is this more evident than in threats like the JohnyCryptor Ransomware: a threatening file encryptor reducing itself to the simplest, most essential elements, without even a ransom message to associate with its payloads. Like the somewhat older 'Av666@weekendwarrior55' Ransomware, the JohnyCryptor Ransomware provides an e-mail address while assuming that its victims will understand to contact it for buying a solution to the infection.
The JohnyCryptor Ransomware uses standardized encryption technology to modify multiple bytes of data for a given set of data, such as local content with the DOC, JPG or HTML formats. Although the operating system is untouched, information is encrypted and renamed, including both the e-mail address and an additional ID number.
Although most con artists conduct similar attacks for the purpose of selling their decryption services to any victims, paying a Trojan's author can't guarantee your content's safe restoration. Malware researchers also warn that victims should not try to rename their data back to the original filenames, which will not only not affect the encryption, but also confuse the process of identifying all damages.
The Only Message Worth Sending to the JohnyCryptor Ransomware's Owner
The JohnyCryptor Ransomware's traits include various hallmarks making it a probable relative, if not outright offspring, of the Rakhni Trojan. Many variants of that threat can have their payloads fully decrypted by the publicly available tools of several PC security organizations. Samples of any threatening files or encrypted data also can give security researchers the additional samples required for developing new decryption programs.
These relatively promising strides in fighting against threatening encryption are adequate last resort measures that don't entail paying con artists for attacking you. However, backing your content up to a safe storage source is equally affordable and an even safer way of guaranteeing that you'll never need to ransom your data out of a JohnyCryptor Ransomware attack. In the past, malware researchers saw very few Trojans extending encryption-based attacks to cloud servers, and the JohnyCryptor Ransomware shows no signs of being among their number. Detachable hard drives also are as viable means of data protection as always.
Although the JohnyCryptor Ransomware's preferred infection vectors still are being verified, similar threats may spread via e-mail spam targeting specific business entities. Any fully-patched anti-malware program of high quality should be entirely able to remove the JohnyCryptor Ransomware or additional threats required for its installation, as long as you remember to scan the file.
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:%APPDATA%\johnyy.exe
File name: johnyy.exeSize: 241.66 KB (241664 bytes)
MD5: 493b260b3d1745fa1b1ec06dbd974ea7
Detection count: 112
File type: Executable File
Mime Type: unknown/exe
Path: %APPDATA%
Group: Malware file
Last Updated: November 12, 2016
file.exe
File name: file.exeSize: 551.93 KB (551936 bytes)
MD5: 423c414fe65718b47ad191d018a3e0a0
Detection count: 66
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: May 26, 2016
mesa1.exe
File name: mesa1.exeSize: 305.15 KB (305152 bytes)
MD5: 53186427569d79d1bbf778d77247a215
Detection count: 35
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: May 26, 2016
%SystemDrive%\Users\<username>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\johnyy.exe
File name: johnyy.exeSize: 311.29 KB (311296 bytes)
MD5: 085a912877be08593adfec50b7ba64b6
Detection count: 35
File type: Executable File
Mime Type: unknown/exe
Path: %SystemDrive%\Users\<username>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
Group: Malware file
Last Updated: August 13, 2018
%SystemDrive%\Users\<username>\AppData\Roaming\johnyy.exe
File name: johnyy.exeSize: 396.8 KB (396800 bytes)
MD5: 5740a96cf29d42cf951348e5c9fc9cb6
Detection count: 28
File type: Executable File
Mime Type: unknown/exe
Path: %SystemDrive%\Users\<username>\AppData\Roaming
Group: Malware file
Last Updated: November 12, 2016
%SystemDrive%\Users\<username>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\johnyy.exe
File name: johnyy.exeSize: 323.58 KB (323584 bytes)
MD5: 7896a94260e61c4612b1aec41c820328
Detection count: 19
File type: Executable File
Mime Type: unknown/exe
Path: %SystemDrive%\Users\<username>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
Group: Malware file
Last Updated: November 12, 2016
%SystemDrive%\Users\<username>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\johnyy.exe
File name: johnyy.exeSize: 316.92 KB (316928 bytes)
MD5: b70e6b993b77150a5a35d949333ac4cf
Detection count: 12
File type: Executable File
Mime Type: unknown/exe
Path: %SystemDrive%\Users\<username>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
Group: Malware file
Last Updated: November 12, 2016
Leave a Reply
Please note that we are not able to assist with billing and support issues regarding SpyHunter or other products. If you're having issues with SpyHunter, please get in touch with SpyHunter customer support through your SpyHunter . If you have SpyHunter billing questions, we recommend you check the Billing FAQ. For general suggestions or feedback, contact us.