Raspberry Robin, a tough-to-detect worm carrying malware and ransomware, is now being delivered via Windows Shortcut Files and Windows Script Files. Researchers at Hewlett Packard (HP) first began to identify the new trend in March of this year. Previously, Raspberry Robin was delivered physically by inserting a weaponized USB stick into a targeted device. But now, this highly effective malware is being delivered via Windows Script Files (WSF), which are widely used by administrators and legitimate software to automate tasks within Windows. The WSF file format supports scripting languages, such as JScript and VBScript, that are interpreted by the Windows Script Host component built into the Windows operating system. It can, however, also be abused by attackers. The Windows Script Files are offered for download via various malicious domains and subdomains controlled by the attackers, which can be distributed via spam or fake online advertising campaigns.
According to a report by Qrator Labs, blocked IP addresses associated with malicious activity increased by 116% in Q3 2023. The increase in blocked IP addresses is credited to threat actors attempting to bypass geo-blocking. Top top 5 countries originating these blocked IP addresses consist of the United States (5.66 million), China (4.97 million), Germany (1.39 million), Indonesia (1.32 million), and Singapore (1.03 million).
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