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What is [email protected] ransomware? And how does it implement its attack?

[email protected] ransomware, also known as .mariacbc Files Virus, is a data-encrypting malware that uses .mariacbc extension in marking the files it encrypt. Like other ransomware threats, [email protected] ransomware is designed to lock important files in a computer leaving them inaccessible to victims.
The instant it drops its malicious payload in the system, [email protected] ransomware will begin to implement its attack. It starts by connecting the system to a remote Command and Control server where it downloads its other components. After that, it gathers information about the victim and the system using a data gathering module. The information obtained is then used along with other components for the stealth protection module which is used to scan the system for digital signature of any security programs. In addition, it may also modify some entries in the Windows Registry so that it can run automatically on every system boot. Following these changes, it scans the system for files with the following extensions:
.3g2, .3gp, .7z, .accdb, .aes, .ARC, .asc, .asf, .asm, .asx, .avi, .backup, .bak, .bat, .brd, .bundle, .c, .cgm, .cmd, .cpp, .crt, .cs, .csproj, .csr, .csv, .db, .dbf, .dch, .der, .dip, .djvu, .doc, .docb, .docm, .docx, .dot, .dotx, .dwg, .edb, .eml, .flv, .frm, .gif, .gpg, .gz, .htm,.html, .hwp, .Iay6, .ibd, .iso, .jar, .jpeg, .jpg, .js, .jse, .key, .lay, .lbd, .log, .m2ts, .max, .mdf, .mdp, .mid, .midi, .mkv, .mml, .mov, .mp3, .mp4, .mpeg, .mpg, .msg, .myd, .myi, .nef, .ocx, .odg, .odp, .odp, .ods, .odt, .onetoc2, .ost, .otg, .otp, .ott, .PAQ, .pas, .pdf, .pern, .pfx, .php, .png, .pot, .potm, .potx, .ppam, .pps, .ppsm, .ppsx, .ppt, .pptm, .pptx, .pst, .pub, .py, .pyc, .pyd, .pyo, .rar, .raw, .rm, .rpa, .sb2, .sch, .sh, .sin, .sldm, .sldx, .slk, .snt, .sql, .sql, .sqlite3, .sqlitedb, .stc, .std, .sti, .stw, .suo, .svg, .swf, .sxc, .sxd, .sxi, .sxm, .sxw, .tar, .tar, .tbk, .tiff, .txt, .uop, .uot, .vb, .vbe, .vbproj, .vbs, .vcd, .vdi, .vdmk, .vmx, .vob, .vsd, .vsdx, .wks, .wma, .wncry, .wrav, .xdata, .xlc, .xlm, .xls, .xlsb, .xlsm, .xlsx, .xlt, .xltm, .xltx, .xlw, .zip
Once it finds its targeted files, [email protected] ransomware encrypts them using the AES 256 encryption algorithm and after file encryption, it adds the .mariacbc extension to every encrypted file. It also opens a GUI interface window which contains the following content:
“the Personal Key
[On5niFpsfas ***]
Warning: Please the Do not the Restart or Shutdown Your the PC,
the If do IT Pesonal Your Files Permanently Crypted.
For Decrypt Your Personal Just Pay 50 $ or 0.002 BTC. The Pay You the Can of After the send key to personal
Telegram: @ MAF420 or Email: [email protected]
The BTC Transfer the Address: 1EME4Y8zHLGQbzjs9YZ5fnbaSLt4ggkRso”
How does [email protected] ransomware circulate the web?
[email protected] ransomware may circulate the web using several methods although cyber criminals behind ransomware threats mostly use spam emails. These spam emails contain an infected attachment with macro scripts used to install [email protected] ransomware in the targeted system. So before opening any attachment from your emails, it’s best if you do a thorough check first.
Make sure to follow the guide provided below to delete [email protected] ransomware from your computer.
Step 1: Tap the Ctrl + Alt + Delete keys to open a menu and then expand the Shut down option which is right next to the power button.
Step 2: After that, tap and hold the Shift key and then click on Restart.
Step 3: And in the Troubleshoot menu that opens, click on the Advanced options and then go to the Startup settings.
Step 4: Click on Restart and tap F4 to select Safe Mode or tap F5 to select Safe Mode with Networking.
Step 5: After your PC has successfully rebooted, tap Ctrl + Shift + Esc to open the Task Manager.
Step 6: Go to the Processes tab and look for any suspicious-looking processes that could be related to [email protected] ransomware like “SF.exe” and then end their processes.

Step 7: Exit the Task Manager and open Programs and Features in Control Panel by pressing the Windows key + R, then type in appwiz.cpl and then click OK or press Enter.
Step 8: Look for suspicious programs that could be related to [email protected] ransomware and then uninstall them.

Step 9: Close Control Panel and tap Win + E keys to open File Explorer.
Step 10: Navigate to the following locations and look for the malicious components created by [email protected] ransomware such as SF.exe, [random].exe and make sure to delete them all.

  • %APPDATA%
  • %TEMP%
  • %APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup\
  • %USERPROFILE%\Downloads
  • %USERPROFILE%\Desktop

Step 11: Close the File Explorer.
Before you proceed to the next steps below, make sure that you are tech savvy enough to the point where you know exactly how to use and navigate your computer’s Registry. Keep in mind that any changes you make will highly impact your computer. To save you the trouble and time, you can just use [product-name] this system tool is proven to be safe and excellent enough that hackers won’t be able to hack into it. But if you can manage Windows Registry well, then by all means go on to the next steps.
Step 12: Tap Win + R to open Run and then type in regedit in the field and tap enter to pull up Windows Registry.

Step 13: Navigate to the listed paths below and look for the registry keys and sub-keys created by [email protected] ransomware.

  • HKEY_CURRENT_USER\Control Panel\Desktop\
  • HKEY_USERS\.DEFAULT\Control Panel\Desktop\
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

Step 14: Delete the registry keys and sub-keys created by [email protected] ransomware.
Step 15: Close the Registry Editor and empty the contents of the Recycle Bin.
To ensure the removal of [email protected] ransomware from your system including the malicious components it has created on your system, follow the advanced steps below.
Perform a full system scan using [product-code]. To do so, follow these steps:

  1. Turn on your computer. If it’s already on, you have to reboot it.
  2. After that, the BIOS screen will be displayed, but if Windows pops up instead, reboot your computer and try again. Once you’re on the BIOS screen, repeat pressing F8, by doing so the Advanced Option shows up.
    1. To navigate the Advanced Option use the arrow keys and select Safe Mode with Networking then hit
    2. Windows will now load the Safe Mode with Networking.
    3. Press and hold both R key and Windows key.

    1. If done correctly, the Windows Run Box will show up.
    2. Type in the URL address, [product-url] in the Run dialog box and then tap Enter or click OK.
    3. After that, it will download the program. Wait for the download to finish and then open the launcher to install the program.
    4. Once the installation process is completed, run [product-code] to perform a full system scan.

    1. After the scan is completed click the “Fix, Clean & Optimize Now” button.

 
 

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