Ever since the .oops virus, dubbed Marlboro came out, it has been causing nothing but trouble. This ransomware type of malware aims to append AES-128 cipher in combination with RSA-2048 algorithm to render important documents, music, databases and other important files no longer openable. The user is demanded in a ransom note to pay a hefty sum of 0.2 BTC for a decryptor which cyber-criminals kindly offer. Fortunately, now, thanks to Emsisoft researchers, like Fabian Wosar, a decryptor is publicly available and we have created instructions to help you remove this virus and decrypt .oops files for free.
Marlboro Ransomware – Quick Background
When the .oops virus was initialy discovered, infections were conducted via a .bin type of file which may be spread on social media, via e-mail or via potentially unwanted applications (PUA).
The Marlboro .oops virus immediately begins to encrypt the files on the compromised computer after modifying the registry entries. The types of files the virus scans for to encrypt are multiple:
→ .mid, .wma, .flv, .mkv, .mov, .avi, .asf, .mpeg, .vob, .mpg, .wmv, .fla, .swf, .wav, .mp3, .qcow2, .vdi, .vmdk, .vmx, .gpg, .aes, .ARC, .PAQ, .tar, .bz2, .tbk, .bak, .tgz, .rar, .zip, .djv, .djvu, .svg, .bmp, .png, .gif, .raw, .cgm, .jpeg, .jpg, .tif, .tiff, .NEF, .psd, .cmd, .bat, .class, .jar, .java, .asp, .aspx, .brd, .sch, .dch, .dip, .vbs, .asm, .pas, .cpp, .php, .ldf, .mdf, .ibd, .MYI, .MYD, .frm, .odb, .dbf, .mdb, .sql, .SQLITEDB, .SQLITE3, .asc, .lay6, ., .lay, .ms11, .sldm, .sldx, .ppsm, .ppsx, .ppam, .docb, .mml, .sxm, .otg, .odg, .uop, .uot, .potx, .potm, .pptx, .pptm, .std, .sxd, .pot, .pps, .sti, .sxi, .otp, .odp, .wks, .xltx, .xltm, .xlsx, .xlsm, .xlsb, .slk, .xlw, .xlt, .xlm, .xlc, .dif, .stc, .sxc, .ots, .ods, .hwp, .dotm, .dotx, .docm, .docx, .DOT, .max, .xml, .txt, .CSV, .RTF, .pdf, .XLS, .PPT, .stw, .sxw, .ott, .odt, .DOC, .pem, .csr, .crt, .key, .dat
After encryption, Marlboro virus appends the .oops file extension to them and they can no longer be opened, looking like the following:
In addition to this, the .oops variant of Marlboro adds a rather long .html ransom note, called “_HELP_Recover_Files_.html”. This ransom note aims to scare users into paying the sum of 0.2 BTC to the cyber-criminals to get their files back.
Fortunately, now that a decryptor has been released, all you have to do is follow the instructions below to remove the Marlboro virus and hopefully decode your files.
Remove Marlboro .oops Virus
Before the actual decryption takes place, you need to make sure your PC is secure. This is why we suggest you to follow the instructions below to eradicate any malware that may be residing on your computer and this includes the Marlboro .oops virus as well.
- Guide 1: How to Remove Marlboro .oops from Windows.
- Guide 2: Get rid of Marlboro .oops from Mac OS X.
- Guide 3: Remove Marlboro .oops from Google Chrome.
- Guide 4: Erase Marlboro .oops from Mozilla Firefox.
- Guide 5: Uninstall Marlboro .oops from Microsoft Edge.
- Guide 6: Remove Marlboro .oops from Safari.
- Guide 7: Eliminate Marlboro .oops from Internet Explorer.
How to Remove Marlboro .oops from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove Marlboro .oops
Step 2: Uninstall Marlboro .oops and related software from Windows
Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it.
Step 3: Clean any registries, created by Marlboro .oops on your computer.
The usually targeted registries of Windows machines are the following:
You can access them by opening the Windows registry editor and deleting any values, created by Marlboro .oops there. This can happen by following the steps underneath:
Get rid of Marlboro .oops from Mac OS X.
Step 1: Uninstall Marlboro .oops and remove related files and objects
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
- Go to Finder.
- In the search bar type the name of the app that you want to remove.
- Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
- If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
In case you cannot remove Marlboro .oops via Step 1 above:
In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:
You can repeat the same procedure with the following other Library directories:
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove malware from your Mac
When you are facing problems on your Mac as a result of unwanted scripts, programs and malware, the recommended way of eliminating the threat is by using an anti-malware program. Combo Cleaner offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Remove Marlboro .oops from Google Chrome.
Step 1: Start Google Chrome and open the drop menu
Step 2: Move the cursor over "Tools" and then from the extended menu choose "Extensions"
Step 3: From the opened "Extensions" menu locate the unwanted extension and click on its "Remove" button.
Step 4: After the extension is removed, restart Google Chrome by closing it from the red "X" button at the top right corner and start it again.
Erase Marlboro .oops from Mozilla Firefox.
Step 1: Start Mozilla Firefox. Open the menu window
Step 2: Select the "Add-ons" icon from the menu.
Step 3: Select the unwanted extension and click "Remove"
Step 4: After the extension is removed, restart Mozilla Firefox by closing it from the red "X" button at the top right corner and start it again.
Uninstall Marlboro .oops from Microsoft Edge.
Step 1: Start Edge browser.
Step 2: Open the drop menu by clicking on the icon at the top right corner.
Step 3: From the drop menu select "Extensions".
Step 4: Choose the suspected malicious extension you want to remove and then click on the gear icon.
Step 5: Remove the malicious extension by scrolling down and then clicking on Uninstall.
Remove Marlboro .oops from Safari.
Step 1: Start the Safari app.
Step 2: After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.
Step 3: From the menu, click on "Preferences".
Step 4: After that, select the 'Extensions' Tab.
Step 5: Click once on the extension you want to remove.
Step 6: Click 'Uninstall'.
A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the Marlboro .oops will be removed.
Eliminate Marlboro .oops from Internet Explorer.
Step 1: Start Internet Explorer.
Step 2: Click on the gear icon labeled 'Tools' to open the drop menu and select 'Manage Add-ons'
Step 3: In the 'Manage Add-ons' window.
Step 4: Select the extension you want to remove and then click 'Disable'. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click 'Disable'.
Step 5: After the unwanted extension has been removed, restart Internet Explorer by closing it from the red 'X' button located at the top right corner and start it again.