RaaS Ransomware

What is RaaS?

RaaS is ransomware or, specifically, a ransomware creation tool allowing cyber criminals to create ransomware by taking a few simple steps. Users enter their BitCoin address, and the payment they wish the ransomware to demand from the victims. The remaining work is performed by the developers of RaaS ransomware.

In exchange for 20% of the received payments, developers collect and validate payments, deliver decryptors, and send funds to users of the ransomware kit. The entire affiliation system is hosted on the TOR network.

After creating the ransomware, cyber criminals are able to distribute it using 'exploit kits', infected e-mail messages, etc. Note that the buyers of this ransomware kit are responsible for the complete distribution of RaaS ransomware.

Although this ransomware is almost identical to Tox, other malware (such as, CryptoWall, CTB locker, and CryptoLocker) has very similar characteristics.

Following successful infiltration, RaaS encrypts most existing files (including .doc, .mp3, .mp4, .ppt, .psd, and many others) and creates a text file called 'encryptor_raas_readme_liesmich.txt' containing information about the encryption and a link to instructions for payment.

Be aware that paying this ransom is equivalent to sending your money to cyber criminals and supporting their malicious business. Furthermore, you cannot be sure that your files will be decrypted.

Although at the time of research there were no tools capable of decrypting the compromised data, RaaS ransomware keeps shadow copies of the encrypted files untouched. Thus, users are able to restore their system to the previous state, thereby preventing data loss.

To avoid ransomware-type infections, be cautious when downloading untrusted files (especially from P2P networks), installing unrecognizable software, opening suspicious e-mail messages, etc. Use a legitimate anti-virus/anti-spyware suite and keep your installed software up-to-date.

RaaS ransomware instructions to unlock files:

Instructions to unlock your files/data:

 

1. Download and install the Multibit application.

This will give you your own Bitcoin-wallet address. You can find it under the “Request” tab.

2. Buy 0.174911 Bitcoins and send it to your own Bitcoin-wallet address, they will show up in the Multibit app that you installed earlier.

From there, hit the “Send” tab.

Send the remaining BTC (bitcoin) to our Bitcoin-wallet address: 12tdtfVGv3FL31BCd4v9toYH19ALhJ8un

Upon manual verification of the transaction you will receive the decryptor through this site within 12 hours.

All of your files/data will then be unlocked and decrypted automatically.

Do NOT move files around or try to tamper with them in any way, because the decrypt will not work then anymore.

Please remember, that this is the only way to ever regain access to your files again!

If the payment is not received before [date] the price for the decryptor will be [amount] Bitcoins.

RaaS ransomware encryptor_raas_readme_liesmich.txt file:

Text presented in encryptor_raas_readme_liesmich.txt

ATTENTION!

The files on your computer have been securely encrypted by Encryptor RaaS.

To get access to your files again, follow the instructions at:

hxxps://decryptoraveidf7.onion.to/vict?cust=[cust_id]&guid=[affiliate_id]

 

ACHTUNG! Die Dateien auf Ihrem Computer wurden von Encryptor RaaS sicher verschluesselt.

Um den Zugriff auf Ihre Dateien wiederzuerlangen, folgen Sie der Anleitung auf:

hxxps://decryptoraveidf7.onion.to/vict?cust=[cust_id]&guid=[affiliate_id]

RaaS ransomware developers' website:

Text presented in the developers' website:

Welcome to Encryptor RaaS.(Ransomware as a Service)

 

The bitcoin address acts as an identifier, so don't use a shared bitcoin address! I'm taking a 20% fee for myself.

Data can only be set once, if you want to change something, use a new bitcoin address.

If you're using a bitcoin address, which is already in my database, it will use the old settings silently!

Use 18V5wVhitNnYaoV3iqAmNVigtYBJzRcztz for a demo.

Notice: The payments need to be cleared manually for security reasons, this will take at most two days.

Link to the Decryptor interface.

Link to a Decryptor demo. (Do NOT use the file from there)

Notice: For a demo, enter 18V5wVhitNnYaoV3iqAmNVigtYBJzRcztz as the bitcoin address and press generate. After executing the file, it will create a readme file on the desktop and is going to open a web browser window. After reloading the site once, it will say, that you've already paid and you can now download the decryptor. After executing the now downloaded decryptor, all encrypted files will be decrypted.

If you want to redownload the executable, just reenter your bitcoin address, otherwise all fields are required.

Donations to: 18V5wVhitNnYaoV3iqAmNVigtYBJzRcztz

RaaS ransomware encrypts the following data types:

abw, accdb, ai, aif, arc, as, asc, asf, ashdisc, asm, asp, aspx, asx, aup, avi, bbb, bdb, bibtex, bkf, bmp, bpn, btd, bz2, c, cdi, cer, cert, cfm, cgi, cpio, cpp, crt, csr, cue, c++, dds, dem, dmg, doc, docm, docx, dsb, dwg, dxf, eddx, edoc, eml, emlx, eps, epub, fdf, ffu, flv, gam, gcode, gho, gif, gpx, gz, h, hbk, hdd, hds, hpp, h++, ics, idml, iff, img, indd, ipd, iso, isz, iwa, j2k, jp2, jpf, jpeg, jpg, jpm, jpx, jsp, jspa, jspx, jst, key, keynote, kml, kmz, lic, lwp, lzma, m3u, m4a, m4v, max, mbox, md2, mdb, mdbackup, mddata, mdf, mdinfo, mds, mid, mov, mp3, mp4, mpa, mpb, mpeg, mpg, mpj, mpp, msg, mso, nba, nbf, nbi, nbu, nbz, nco, nes, note, nrg, nri, ods, odt, ogg, ova, ovf, oxps, p2i, p65, p7, pages, pct, pdf, pem, phtm, phtml, php, php3, php4, php5, phps, phpx, phpxx, pl, plist, pmd, pmx, png, ppdf, pps, ppsm, ppsx, ppt, pptm, pptx, ps, psd, pspimage, pst, pub, pvm, qcn, qcow, qcow2, qt, ra, rar, raw, rm, rtf, s, sbf, set, skb, slf, sme, smm, spb, sql, srt, ssc, ssi, stg, stl, svg, swf, sxw, syncdb, tar, tc, tex, tga, thm, tif, tiff, toast, torrent, tpl, ts, txt, vbk, vcard, vcd, vcf, vdi, vfs4, vhd, vhdx, vmdk, vob, wbverify, wav, webm, wmb, wpb, wps, xdw, xlr, xls, xlsx, xz, yuv, zip, zipx

RaaS ransomware removal:

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Video suggesting what steps should be taken in case of a ransomware infection:

Quick menu:

• What is RaaS virus?
• STEP 1. Reporting ransomware to authorities.
• STEP 2. Isolating the infected device.
• STEP 3. Identifying the ransomware infection.
• STEP 4. Searching for ransomware decryption tools.
• STEP 5. Restoring files with data recovery tools.
• STEP 6. Creating data backups.

Reporting ransomware to authorities:

If you are a victim of a ransomware attack we recommend reporting this incident to authorities. By providing information to law enforcement agencies you will help track cybercrime and potentially assist in the prosecution of the attackers. Here's a list of authorities where you should report a ransomware attack. For the complete list of local cybersecurity centers and information on why you should report ransomware attacks, read this article.

List of local authorities where ransomware attacks should be reported (choose one depending on your residence address):

•  USA - Internet Crime Complaint Centre IC3
•  United Kingdom - Action Fraud
•  Spain - Policía Nacional
•  France - Ministère de l'Intérieur
•  Germany - Polizei
•  Italy - Polizia di Stato
•  The Netherlands - Politie
•  Poland - Policja
•  Portugal - Polícia Judiciária

Isolating the infected device:

Some ransomware-type infections are designed to encrypt files within external storage devices, infect them, and even spread throughout the entire local network. For this reason, it is very important to isolate the infected device (computer) as soon as possible.

Step 1: Disconnect from the internet.

The easiest way to disconnect a computer from the internet is to unplug the Ethernet cable from the motherboard, however, some devices are connected via a wireless network and for some users (especially those who are not particularly tech-savvy), disconnecting cables may seem troublesome. Therefore, you can also disconnect the system manually via Control Panel:

Navigate to the "Control Panel", click the search bar in the upper-right corner of the screen, enter "Network and Sharing Center" and select search result:

Click the "Change adapter settings" option in the upper-left corner of the window:

Right-click on each connection point and select "Disable". Once disabled, the system will no longer be connected to the internet. To re-enable the connection points, simply right-click again and select "Enable".

Step 2: Unplug all storage devices.

As mentioned above, ransomware might encrypt data and infiltrate all storage devices that are connected to the computer. For this reason, all external storage devices (flash drives, portable hard drives, etc.) should be disconnected immediately, however, we strongly advise you to eject each device before disconnecting to prevent data corruption:

Navigate to "My Computer", right-click on each connected device, and select "Eject":

Step 3: Log-out of cloud storage accounts.

Some ransomware-type might be able to hijack software that handles data stored within "the Cloud". Therefore, the data could be corrupted/encrypted. For this reason, you should log-out of all cloud storage accounts within browsers and other related software. You should also consider temporarily uninstalling the cloud-management software until the infection is completely removed.

Identify the ransomware infection:

To properly handle an infection, one must first identify it. Some ransomware infections use ransom-demand messages as an introduction (see the WALDO ransomware text file below).

This, however, is rare. In most cases, ransomware infections deliver more direct messages simply stating that data is encrypted and that victims must pay some sort of ransom. Note that ransomware-type infections typically generate messages with different file names (for example, "_readme.txt", "READ-ME.txt", "DECRYPTION_INSTRUCTIONS.txt", "DECRYPT_FILES.html", etc.). Therefore, using the name of a ransom message may seem like a good way to identify the infection. The problem is that most of these names are generic and some infections use the same names, even though the delivered messages are different and the infections themselves are unrelated. Therefore, using the message filename alone can be ineffective and even lead to permanent data loss (for example, by attempting to decrypt data using tools designed for different ransomware infections, users are likely to end up permanently damaging files and decryption will no longer be possible even with the correct tool).

Another way to identify a ransomware infection is to check the file extension, which is appended to each encrypted file. Ransomware infections are often named by the extensions they append (see files encrypted by Qewe ransomware below).

This method is only effective, however, when the appended extension is unique - many ransomware infections append a generic extension (for example, ".encrypted", ".enc", ".crypted", ".locked", etc.). In these cases, identifying ransomware by its appended extension becomes impossible.

One of the easiest and quickest ways to identify a ransomware infection is to use the ID Ransomware website. This service supports most existing ransomware infections. Victims simply upload a ransom message and/or one encrypted file (we advise you to upload both if possible).

The ransomware will be identified within seconds and you will be provided with various details, such as the name of the malware family to which the infection belongs, whether it is decryptable, and so on.

Example 1 (Qewe [Stop/Djvu] ransomware):

Example 2 (.iso [Phobos] ransomware):

If your data happens to be encrypted by ransomware that is not supported by ID Ransomware, you can always try searching the internet by using certain keywords (for example, a ransom message title, file extension, provided contact emails, crypto wallet addresses, etc.).

Search for ransomware decryption tools:

Encryption algorithms used by most ransomware-type infections are extremely sophisticated and, if the encryption is performed properly, only the developer is capable of restoring data. This is because decryption requires a specific key, which is generated during the encryption. Restoring data without the key is impossible. In most cases, cybercriminals store keys on a remote server, rather than using the infected machine as a host. Dharma (CrySis), Phobos, and other families of high-end ransomware infections are virtually flawless, and thus restoring data encrypted without the developers' involvement is simply impossible. Despite this, there are dozens of ransomware-type infections that are poorly developed and contain a number of flaws (for example, the use of identical encryption/decryption keys for each victim, keys stored locally, etc.). Therefore, always check for available decryption tools for any ransomware that infiltrates your computer.

Finding the correct decryption tool on the internet can be very frustrating. For this reason, we recommend that you use the No More Ransom Project and this is where identifying the ransomware infection is useful. The No More Ransom Project website contains a "Decryption Tools" section with a search bar. Enter the name of the identified ransomware, and all available decryptors (if there are any) will be listed.

Restore files with data recovery tools:

Depending on the situation (quality of ransomware infection, type of encryption algorithm used, etc.), restoring data with certain third-party tools might be possible. Therefore, we advise you to use the Recuva tool developed by CCleaner. This tool supports over a thousand data types (graphics, video, audio, documents, etc.) and it is very intuitive (little knowledge is necessary to recover data). In addition, the recovery feature is completely free.

Step 1: Perform a scan.

Run the Recuva application and follow the wizard. You will be prompted with several windows allowing you to choose what file types to look for, which locations should be scanned, etc. All you need to do is select the options you're looking for and start the scan. We advise you to enable the "Deep Scan" before starting, otherwise, the application's scanning capabilities will be restricted.

Wait for Recuva to complete the scan. The scanning duration depends on the volume of files (both in quantity and size) that you are scanning (for example, several hundred gigabytes could take over an hour to scan). Therefore, be patient during the scanning process. We also advise against modifying or deleting existing files, since this might interfere with the scan. If you add additional data (for example, downloading files/content) while scanning, this will prolong the process:

Step 2: Recover data.

Once the process is complete, select the folders/files you wish to restore and simply click "Recover". Note that some free space on your storage drive is necessary to restore data:

Create data backups:

Proper file management and creating backups is essential for data security. Therefore, always be very careful and think ahead.

Partition management: We recommend that you store your data in multiple partitions and avoid storing important files within the partition that contains the entire operating system. If you fall into a situation whereby you cannot boot the system and are forced to format the disk on which the operating system is installed (in most cases, this is where malware infections hide), you will lose all data stored within that drive. This is the advantage of having multiple partitions: if you have the entire storage device assigned to a single partition, you will be forced to delete everything, however, creating multiple partitions and allocating the data properly allows you to prevent such problems. You can easily format a single partition without affecting the others - therefore, one will be cleaned and the others will remain untouched, and your data will be saved. Managing partitions is quite simple and you can find all the necessary information on Microsoft's documentation web page.

Data backups: One of the most reliable backup methods is to use an external storage device and keep it unplugged. Copy your data to an external hard drive, flash (thumb) drive, SSD, HDD, or any other storage device, unplug it and store it in a dry place away from the sun and extreme temperatures. This method is, however, quite inefficient, since data backups and updates need to be made regularly. You can also use a cloud service or remote server. Here, an internet connection is required and there is always the chance of a security breach, although it's a really rare occasion.

We recommend using Microsoft OneDrive for backing up your files. OneDrive lets you store your personal files and data in the cloud, sync files across computers and mobile devices, allowing you to access and edit your files from all of your Windows devices. OneDrive lets you save, share and preview files, access download history, move, delete, and rename files, as well as create new folders, and much more.

You can back up your most important folders and files on your PC (your Desktop, Documents, and Pictures folders). Some of OneDrive’s more notable features include file versioning, which keeps older versions of files for up to 30 days. OneDrive features a recycling bin in which all of your deleted files are stored for a limited time. Deleted files are not counted as part of the user’s allocation.

The service is built using HTML5 technologies and allows you to upload files up to 300 MB via drag and drop into the web browser or up to 10 GB via the OneDrive desktop application. With OneDrive, you can download entire folders as a single ZIP file with up to 10,000 files, although it can’t exceed 15 GB per single download.

OneDrive comes with 5 GB of free storage out of the box, with an additional 100 GB, 1 TB, and 6 TB storage options available for a subscription-based fee. You can get one of these storage plans by either purchasing additional storage separately or with Office 365 subscription.

Creating a data backup:

The backup process is the same for all file types and folders. Here’s how you can back up your files using Microsoft OneDrive

Step 1: Choose the files/folders you want to backup.

Click the OneDrive cloud icon to open the OneDrive menu. While in this menu, you can customize your file backup settings.

Click Help & Settings and then select Settings from the drop-down menu.

Go to the Backup tab and click Manage backup.

In this menu, you can choose to backup the Desktop and all of the files on it, and Documents and Pictures folders, again, with all of the files in them. Click Start backup.

Now, when you add a file or folder in the Desktop and Documents and Pictures folders, they will be automatically backed up on OneDrive.

To add folders and files, not in the locations shown above, you have to add them manually.

Open File Explorer and navigate to the location of the folder/file you want to backup. Select the item, right-click it, and click Copy.

Then, navigate to OneDrive, right-click anywhere in the window and click Paste. Alternatively, you can just drag and drop a file into OneDrive. OneDrive will automatically create a backup of the folder/file.

All of the files added to the OneDrive folder are backed up in the cloud automatically. The green circle with the checkmark in it indicates that the file is available both locally and on OneDrive and that the file version is the same on both. The blue cloud icon indicates that the file has not been synced and is available only on OneDrive. The sync icon indicates that the file is currently syncing.

To access files only located on OneDrive online, go to the Help & Settings drop-down menu and select View online.

Step 2: Restore corrupted files.

OneDrive makes sure that the files stay in sync, so the version of the file on the computer is the same version on the cloud. However, if ransomware has encrypted your files, you can take advantage of OneDrive’s Version history feature that will allow you to restore the file versions prior to encryption.

Microsoft 365 has a ransomware detection feature that notifies you when your OneDrive files have been attacked and guide you through the process of restoring your files. It must be noted, however, that if you don’t have a paid Microsoft 365 subscription, you only get one detection and file recovery for free.

If your OneDrive files get deleted, corrupted, or infected by malware, you can restore your entire OneDrive to a previous state. Here’s how you can restore your entire OneDrive:

1. If you're signed in with a personal account, click the Settings cog at the top of the page. Then, click Options and select Restore your OneDrive.

If you're signed in with a work or school account,  click the Settings cog at the top of the page. Then, click Restore your OneDrive.

2. On the Restore your OneDrive page, select a date from the drop-down list. Note that if you're restoring your files after automatic ransomware detection, a restore date will be selected for you.

3. After configuring all of the file restoration options, click Restore to undo all the activities you selected.

The best way to avoid damage from ransomware infections is to maintain regular up-to-date backups.

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