Adver Ransomware: A Comprehensive Guide on Threat Overview, Removal, and Prevention

Ransomware continues to be a significant threat to both individual users and organizations worldwide. Among the many ransomware strains that have emerged over the years, Adver ransomware stands out due to its disruptive nature and encrypted file extension, making it a severe security concern. In this article, we’ll break down what Adver ransomware is, its characteristics, how it infects devices, and how you can protect yourself from it. We’ll also provide a detailed removal guide for users who have been infected by this threat.

What is Adver Ransomware?

Adver ransomware is a type of malicious software classified as a file-locking ransomware. It encrypts the files on the victim's computer, rendering them inaccessible. Once the encryption process is complete, the files have the ".adver" extension appended to their original filenames. For example, a file named 1.jpg would be renamed to 1.jpg.adver, and 2.png would become 2.png.adver. This alteration makes it impossible to open the files without decrypting them.

Like most ransomware strains, Adver provides a ransom note titled RECOVERY INFORMATION.txt. This file is placed on the victim's computer and contains instructions for paying the ransom in exchange for a decryption tool. The attackers demand that the victim contact them via the email address adver@mailum.com and submit a personal ID to receive the decryption instructions. However, like most ransomware attacks, paying the ransom is not recommended, as there is no guarantee that the cybercriminals will deliver the promised decryption tool.

Symptoms of Adver Ransomware Infection

The most notable symptom of an Adver ransomware infection is the inability to open your files. Files that were once functional and accessible, such as documents, images, and videos, suddenly become inaccessible due to the file extension change. When attempting to open these files, you will receive error messages indicating that the file cannot be opened.

Additionally, the RECOVERY INFORMATION.txt file is a clear sign of the infection. It provides instructions on how to contact the cybercriminals and pay the ransom to recover the files.

Distribution Methods of Adver Ransomware

Adver ransomware is distributed through various methods, some of which are very common among other types of malware. The most frequent distribution methods include:

1. Infected Email Attachments: Cybercriminals often use phishing emails with malicious attachments that contain Adver ransomware. These emails can appear to come from legitimate sources and may include fake invoices, security warnings, or other enticing messages. Once the victim opens the attachment, the ransomware is installed on their computer.
2. Torrent Websites: Ransomware can also be spread through infected files shared on torrent websites. These sites, often used for downloading pirated software and media, can host ransomware-laden files that, once downloaded, infect the user's system.
3. Malicious Advertisements: Another way Adver ransomware is delivered is through malicious advertisements, also known as malvertising. These ads may appear on legitimate websites and prompt users to click on them, leading to the download of ransomware.
4. Compromised Websites: Cybercriminals can exploit vulnerabilities in websites and inject ransomware into them. Once a user visits a compromised site, the malware is automatically downloaded onto their system.
5. USB Drives: Ransomware can also spread through infected USB drives. When a user connects an infected USB drive to their computer, the malware can be executed automatically or through user interaction.

How Adver Ransomware Affects Your Computer

Once Adver ransomware infiltrates your system, it begins by encrypting files and appending the ".adver" extension to them. This encryption prevents access to your documents, pictures, videos, and other important files, which are rendered completely unusable. After encryption, the ransomware drops the RECOVERY INFORMATION.txt file, which informs the victim of the attack and provides contact details for payment.

Besides file encryption, ransomware like Adver may install other forms of malware on the victim’s system. This can include password-stealing Trojans and additional malware infections. These can lead to further damage, including the theft of sensitive information, financial loss, and even the spread of the infection to other devices on the network.

Ransomware Removal Guide

If your computer is infected with Adver ransomware, here is a comprehensive guide on how to remove it. While there are no guarantees for recovery without paying the ransom, following these steps can help you minimize the damage and remove the malware from your system.

Step 1: Disconnect from the Network

As soon as you suspect that your system has been infected with ransomware, the first step is to disconnect your device from the network. This will prevent the ransomware from spreading to other devices on the same network and stop it from communicating with its command-and-control servers. Disconnect from Wi-Fi and unplug any Ethernet cables.

Step 2: Enter Safe Mode

To ensure that the ransomware does not interfere with the removal process, restart your computer in Safe Mode with Networking. Safe Mode will start your computer with a minimal set of drivers and services, which may prevent the ransomware from running.

To enter Safe Mode:

1. Restart your computer.
2. While your computer is booting up, press F8 (on most systems) or Shift + F8.
3. Select Safe Mode with Networking from the boot options menu.

Step 3: Run an Anti-Malware Scan

Once in Safe Mode, use a reputable anti-malware program to scan your computer for Adver ransomware. SpyHunter is highly recommended for detecting and removing ransomware.

• Open your anti-malware software and initiate a full system scan.
• Allow the software to quarantine or delete any detected threats.
• After the scan, restart your computer to see if the issue is resolved.

Step 4: Restore Files (If Available)

If you have a backup of your files, now is the time to restore them. Use cloud storage or external drives to restore your encrypted files. If you don’t have backups, it may be worth trying to use decryption tools if they become available for this strain in the future.

Step 5: Perform a Full System Reset (If Necessary)

In some cases, ransomware may not be completely removed by antivirus software. If this happens, a system reset or clean installation of your operating system may be necessary. Make sure to back up any important files before performing a system reset.

Preventive Measures Against Adver Ransomware

While the immediate focus is on removing the ransomware, prevention is key to avoiding future infections. Here are some essential steps you can take:

1. Update Software Regularly: Make sure that your operating system and all installed software are up to date. Ransomware often exploits vulnerabilities in outdated software, so keeping everything current is vital.
2. Use Antivirus Software: Install and regularly update antivirus software to detect and block ransomware before it can infect your system.
3. Avoid Suspicious Links and Attachments: Never open suspicious email attachments or click on unknown links. Phishing emails are one of the most common ways ransomware spreads.
4. Back Up Your Files: Regularly back up your important files to a cloud service or an external hard drive. In case of an infection, you will be able to restore your data without paying the ransom.
5. Educate Yourself About Cybersecurity: Stay informed about the latest ransomware threats and cybersecurity best practices to avoid falling victim to attacks.

Conclusion

Adver ransomware is a dangerous threat that can cause significant damage to both individuals and businesses. By understanding its distribution methods, symptoms, and the impact it can have, you can take steps to protect yourself and your data. If you are infected, follow the removal guide to get rid of the malware and minimize the damage. Always remember to back up your files, stay up-to-date with software updates, and practice safe browsing habits to prevent future ransomware attacks.