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Home Alerts

Magniber Ransomware Targets Home Users

August 5, 2024
Reading Time: 2 mins read
in Alerts

A significant resurgence of the Magniber ransomware campaign is currently affecting home users globally, with the attackers demanding ransoms ranging from $1,000 to $5,000 to restore access to encrypted files. Magniber first emerged in 2017, designed as a successor to the Cerber ransomware operation, and was initially distributed through the Magnitude exploit kit. Over the years, the ransomware has exhibited various spikes in activity, utilizing multiple distribution tactics, including exploiting Windows zero-day vulnerabilities, delivering fake updates for Windows and web browsers, and using trojanized software cracks and key generators to compromise user devices. Unlike larger ransomware schemes, Magniber specifically targets individual users, particularly those who inadvertently download and execute malicious software.

Since July 20, 2024, there has been a notable increase in reports from victims seeking assistance on platforms like BleepingComputer, with nearly 720 submissions documented by ID-Ransomware during the same period. Although the exact infection vectors remain unclear, some victims indicated that their devices were compromised after using software cracks or key generators, methods previously associated with the distribution of Magniber. Once activated, the ransomware encrypts files on the infected device, appending random extensions, such as .oaxysw or .oymtk, to the encrypted filenames. It also generates a ransom note named READ_ME.htm, informing victims of the encryption and providing a unique URL that directs them to the attackers’ Tor ransom site.

The ransom amounts demanded by Magniber begin at $1,000, increasing to $5,000 if the payment is not made within a specified timeframe, typically three days. Unfortunately for victims, there are currently no available free decryption solutions for the files compromised by the latest versions of Magniber. In 2018, AhnLab released a decryptor for earlier iterations of the ransomware, but that tool is no longer effective, as the threat actors have since fixed the vulnerabilities that allowed for free file recovery.

Experts strongly advise users to steer clear of software cracks and key generators, as these practices not only breach legality but also serve as common conduits for the introduction of malware and ransomware into user systems. For individuals impacted by this ransomware outbreak, resources are available to seek assistance, and dedicated support topics can provide guidance and answers to critical questions regarding the Magniber situation. The ongoing nature of this campaign highlights the importance of cybersecurity awareness and the need for users to adopt safe online practices to mitigate risks associated with ransomware attacks.

Reference:

  • Surge in Magniber ransomware attacks impact home users worldwide
Tags: AhnLabAugust 2024Cerber ransomwareCyber AlertsCyber Alerts 2024Cyber threatsMagniber ransomwarezero-day vulnerabilities
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