The reincarnated DLL Cryptomix Ransomware is treacherously invading systems across the world once again. Researchers have found that this new variant of DLL Cryptomix is encrypting user’s files by appending .DLL extension to the file name. It is reported to be installed in the systems via compromised Remote Desktop Services.
The initial movement of this rouge Ransomware variant was discovered when a targeted user exposed Cryptomix developers for hacking his Remote Desktop Services. Another alarming modification made by Cryptomix Ransomware on the victim’s PC was enabling the Default Admin Account & altering its password, without any notification to the user.
The smart conduct of this devious malware may leave the users surprised. It has moved away from the traditional propagation methods like Spam e-mails & adapted manual installation methods such as hacking compromised services. Therefore, users are advised to immediately switch off the publically accessible services that can help Cyber Crooks gain illicit access to Windows.
Recently launched by an Anonymous Hacker, DLL Cryptomix’s variant is creeping around & invading systems across the globe. Researchers believe that DLL Cryptomix Ransomware is using common propagation tactics such as phishing e-mails & suspicious websites that masquerade as legit service providers & companies.
In order to ease a large scale propagation developers are implementing other devious strategies such as payload carriers, browser hijackers, shareware file downloads, fake updates & infected software.
Upon infecting a system, DLL Cryptomix runs a complex operating pattern & notifies the developers about the infection via message. The infection of the system is followed by various modules that are mentioned below:
1). Collecting Sensitive Information: A data gathering procedure is implemented to gather sensitive & information associated with the victims & their systems. The collected information can be used by the cyber criminals to reveal their digital identity such as IP Address, Name, Contact Details and E-mail Address of the victims.
This information is further used by the developers to frame a unique ID that is assigned to every infected system.
2). Modifications in Boot Options: Secondly, boot options & system settings will be modified to automatically aid the start of .DLL Cryptomix Ransomware with every computer boot. A virus is smartly placed in the system that is programmed to render access to the recovery boot options inoperative.
3). Modified Windows Settings: Users may observe certain unexpected modifications in the Windows settings & stored values of the Registry. This can be menacing as it can result in severe performance modifications & make the system unstable. In addition to that, the system may detect unexpected errors, frequent system crashes & data loss.
Following the modules mentioned above, .DLL Cryptomix Ransomware encrypts important files on the user’s system & appends .DLL to the name of the files.
The files taken hostage by DLL Cryptomix Ransomware include documents ( .doc, .docx, .xls, .pdf), photos ( .jpg, .img), videos ( .mp3, .mp4) & other multimedia files.
A window displaying ransom note for DLL Cryptomix Ransomware Variant covers the screen wherein the fraudsters asks the victims to pay ransom in bitcoins. Failing to pay the ransom amount in the mentioned time could result in the permanent deletion of the data.
The ransom note further prompts the victims to contact the developers via e-mail in order to get specific information & fetch help regarding their encrypted data.
The e-mail Ids mentioned in the note is:
The ransom note for the DLL Cryptomix Ransomware Variant is named as _HELP_INSTRUCTION.TXT & contains message from the developers.
The note reads as follows:
The cybercriminals use various strategies for malware distribution which include –
Targeted Operating System: Windows
Symptoms: User’s files are encrypted & inaccessible. All locked files are appended with .dll extension & a ransom note demanding a ransom in bitcoin(s) prompts on the screen.
Continue to follow steps 4 & 5 of Method 2 to restore the System Files and settings.
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