What is Cammora ransomware? And how does it carry out its attack?
Cammora ransomware is one of the latest crypto-virus discovered recently. It is also a new variant of GarrantyDecrypt ransomware. This new ransomware strain uses the .cammora suffix in marking the files it encrypts. Once it infiltrates a targeted computer, Cammora ransomware will initiate a series of modifications in the system. It starts by connecting to a remote server where it downloads its other components and places them on several system folders. These components allow the crypto-virus to launch or repress system processes.
Using these components, it also employs a data harvesting module that gathers information from the system. The obtained information is processed and used for the stealth protection module which allows the crypto-virus to bypass security programs, virtual hosts, antivirus programs, and sandbox environments that may interrupt the attack. To make its removal difficult, Cammora ransomware also alters some entries in the Windows Registry, allowing it to carry out its attack automatically in every system boot. Once it is achieved in modifying essential system settings, Cammora ransomware will begin scanning 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
After it encrypts its targeted files, using a sophisticated encryption algorithm, it adds the .cammora extension on each one of the compromised files and opens a text file named “#RECOVERY_FILES#.txt” which states:
“All your files have been encrypted!
Now you should send us an email with your personal identifier.
This email will be as confirmation you are ready to pay for the decryption key.
You have to pay for decryption in Bitcoins. The price depends on how fast you
write to us.
After payment, we will send you the decryption tool that will decrypt all your
files.
Contact us using this email address
[email protected]
And tell us your unique ID
[redacted 0x200 bytes in base64]”
How is the malicious payload of Cammora ransomware disseminated online?
According to security experts, Cammora ransomware is currently circling active attack campaigns across the web and could be set against users worldwide. Creators of this threat may be using malicious spam email campaigns to disseminate the payload file of this threat. So you have to be extra careful in opening emails and downloading attachments.
To effectively eliminate Cammora ransomware from your PC, make sure to follow the removal instructions below.
Step_1: First, you have to stop the malicious process of Cammora ransomware by opening the Task Manager. To do that, simply tap Ctrl + Shift + Esc keys on your keyboard.
Step_2: Under the Task Manager, switch to the Processes tab and find a process named Wmiprvse.exe as well as any suspicious-looking process that takes up most of your CPU’s resources and is most likely related to Cammora ransomware.
Step_3: After that, close the Task Manager.
Step_4: Tap Win + R, type in appwiz.cpl and click OK or tap Enter to open Programs and Features under Control Panel.
Step_5: Under the list of installed programs, look for Cammora ransomware or anything similar, and then uninstall it.
Step_6: Next, close the Control Panel and tap Win + E keys to launch File Explorer.
Step_7: Navigate to the following locations below and look for Cammora ransomware’s malicious components such as “#RECOVERY_FILES#.txt”, Wmiprvse.exe, [random].exe, and other suspicious files, then delete all of them.
- %TEMP%
- %WINDIR%\System32\Tasks
- %APPDATA%\Microsoft\Windows\Templates\
- %USERPROFILE%\Downloads
- %USERPROFILE%\Desktop
Step_8: 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 trouble and time, you can just use Restoro, 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_9: Tap Win + R to open Run and then type in Regedit in the field and tap enter to pull up Windows Registry.
Step_10: Navigate to the following path:
- 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_11: Delete the registry keys and sub-keys created by Cammora ransomware.
Step_12: Close the Registry Editor and empty the Recycle Bin.
Try to recover your encrypted files using the Shadow Volume copies
Restoring your encrypted files using Windows Previous Versions feature will only be effective if Cammora ransomware hasn’t deleted the shadow copies of your files. But still, this is one of the best and free methods there is, so it’s definitely worth a shot.
To restore the encrypted file, right-click on it and select Properties, a new window will pop up, then proceed to Previous Versions. It will load the file’s previous version before it was modified. After it loads, select any of the previous versions displayed on the list like the one in the illustration below. And then click the Restore button.
Congratulations, you have just removed Cammora Ransomware in Windows 10 all by yourself. If you would like to read more helpful articles and tips about various software and hardware visit fixmypcfree.com daily.
Now that’s how you remove Cammora Ransomware in Windows 10 on a computer. On the other hand, if your computer is going through some system-related issues that have to get fixed, there is a one-click solution known as Restoro you could check out to resolve them.
This program is a useful tool that could repair corrupted registries and optimize your PC’s overall performance. Aside from that, it also cleans out your computer for any junk or corrupted files that help you eliminate any unwanted files from your system. This is basically a solution that’s within your grasp with just a click. It’s easy to use as it is user-friendly. For a complete set of instructions in downloading and using it, refer to the steps below
Perform a full system scan using Restoro. To do so, follow the instructions below.
