What is 24H ransomware? And how does it carry out its attack?
24H ransomware is a file-encrypting virus which is a test version of a new threat. Although it has been reported that there was a victim whose computer was infected with this new crypto-malware so even if it’s still a test version, 24H ransomware should not be taken lightly as it could still progress to a very dangerous crypto-malware once its developers update it. Since this threat is still a test version, security experts noted that the only malicious component of 24H ransomware is its ransomware engine. However, it can still be modified to include other malicious components as well.
Like a typical ransomware infection, 24H ransomware will start to carry out its attack by dropping more malicious files in the computer which aides it in its attack. These malicious files may be dropped in Windows system folders. It could also launch and repress processes in the Windows environment so that it can freely execute its attack without any interruptions from programs installed in the system. Moreover, modifications in the Registry could also be done in order to achieve persistence. After these changes are made, it will scan the system looking for files with the following extensions:
.PNG .PSD .PSPIMAGE .TGA .THM .TIF .TIFF .YUV .AI .EPS .PS .SVG .INDD .PCT .PDF .XLR .XLS .XLSX .ACCDB .DB .DBF .MDB .PDB .SQL .APK .APP .BAT .CGI .COM .EXE .GADGET .JAR .PIF .WSF .DEM .GAM .NES .ROM .SAV CAD Files .DWG .DXF GIS Files .GPX .KML .KMZ .ASP .ASPX .CER .CFM .CSR .CSS .HTM .HTML .JS .JSP .PHP .RSS .XHTML .DOC .DOCX .LOG .MSG .ODT .PAGES .RTF .TEX .TXT .WPD .WPS .CSV .DAT .GED .KEY .KEYCHAIN .PPS .PPT .PPTX ..INI .PRF Encoded Files .HQX .MIM .UUE .7Z .CBR .DEB .GZ .PKG .RAR .RPM .SITX .TAR.GZ .ZIP .ZIPX .BIN .CUE .DMG .ISO .MDF .TOAST .VCD SDF .TAR .TAX2014 .TAX2015 .VCF .XML Audio Files .AIF .IFF .M3U .M4A .MID .MP3 .MPA .WAV .WMA Video Files .3G2 .3GP .ASF .AVI .FLV .M4V .MOV .MP4 .MPG .RM .SRT .SWF .VOB .WMV 3D .3DM .3DS .MAX .OBJ R.BMP .DDS .GIF .JPG .CRX .PLUGIN .FNT .FON .OTF .TTF .CAB .CPL .CUR .DESKTHEMEPACK .DLL .DMP .DRV .ICNS .ICO .LNK .SYS .CFG
When it finds all the files, it will encrypt them right away using a strong cipher and adds the .24H extension on every encrypted file. Following data encryption, it drops a file called “ReadME-24H.txt” which contains the following content:
“Welcome to the “24H” Ransomeware! all your system information is encrypted. For receive the decryption program, transfer 0.24 bitcoins to 1FniWsB6T3n7GjBGs3UizspTshBvt9qFqR address and then send your request to the “[email protected]” and “[email protected]” email addresses. Your Personal KEY: ***”
How does 24H ransomware spread online?
Creators of 24H ransomware might use spam emails to spread this crypto-virus online. Therefore, you have to be cautious in downloading attachments or clicking links from your emails as you could chance upon an encounter with the malicious payload of 24H ransomware.
For 24H ransomware elimination, you need to use the removal steps below.
Step 1: Tap Ctrl + Shift + Esc keys to launch the Task Manager.
Step 2: Go to the Processes and Applications tab and look for the malicious processes of 24H ransomware then right click on them and select End Process or End Task.
Step 3: Close the Task Manager and open Control Panel by pressing the Windows key + R, then type in appwiz.cpl and then click OK or press Enter.
Step 4: Look for dubious programs that might be related to 24H ransomware and then Uninstall it/them.
Step 5: Tap Win + E to launch File Explorer.
Step 6: After opening File Explorer, navigate to the following directories below and look for 24H ransomware’s malicious components such as [random].exe as well as a text file named ReadME-24H.txt which contains the ransom note and other suspicious-looking files and then remove them all.
Step 7: 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 8: Tap Win + R to open Run and then type in regedit in the field and tap enter to pull up Windows Registry.
Step 9: Navigate to the listed paths below and look for the registry keys and sub-keys created by 24H ransomware.
- HKEY_CURRENT_USER\Control Panel\Desktop\ScreenSaveTimeOut
- HKEY_CURRENT_USER\Control Panel\Desktop
Step 10: Next, delete the registry keys and sub-keys created by 24H ransomware.
Step 11: Close the Registry Editor.
Step 12: Finally, empty the contents of your Recycle Bin.
Try to recover your encrypted files using the Volume Shadow copies
Restoring your encrypted files using Windows’ Previous Versions feature will only be effective if 24H 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.
Once you’re done executing the steps given above, you need to continue the removal process of 24H ransomware using a reliable program like [product-name]. How? Follow the advanced removal steps below.
Perform a full system scan using [product-code]. To do so, follow these steps:
- Turn on your computer. If it’s already on, you have to reboot
- 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.
- To navigate the Advanced Option use the arrow keys and select Safe Mode with Networking then hit
- Windows will now load the SafeMode with Networking.
- Press and hold both R key and Windows key.
- If done correctly, the Windows Run Box will show up.
- Type in the URL address, [product-url] in the Run dialog box and then tap Enter or click OK.
- After that, it will download the program. Wait for the download to finish and then open the launcher to install the program.
- Once the installation process is completed, run [product-code] to perform a full system scan.
- After the scan is completed click the “Fix, Clean & Optimize Now”button.