Researchers discovered it was exploiting a new zero-day vulnerability CVE-2023-1380 to attack TP-Link routers and add them to its botnet, which has been used to facilitate some of the most disruptive distributed DDoS attacks on record. Last month also saw the return of Mirai, one of the most popular IoT malwares. Researchers found instances of the malspam being sent in multiple different languages, which means organizations can be targeted worldwide. Once these are downloaded, the Qbot malware is installed on the device. The Qbot campaign seen last month involves a new delivery method in which targets are sent an email with an attachment that contains protected PDF files. Meanwhile, Internet-of-Things (IoT) malware Mirai made the list for the first time in a year after exploiting a new vulnerability in TP-Link routers, and Healthcare moved up to become the second most exploited industry. Our latest Global Threat Index for April 2023 saw researchers uncover a substantial Qbot malspam campaign distributed through malicious PDF files, attached to emails seen in multiple languages. Meanwhile Internet-of-Things (IoT) malware Mirai made it back on the list for the first time in a year, and Healthcare moved up to become the second most exploited industry Check Point Research uncovered a substantial malspam campaign for Trojan Qbot, which came in second in last month’s threat index.
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