How Chinese Attackers Breached an ISP to Poison Insecure Software Updates with Malware

An anonymous reader shared this report from BleepingComputer:A Chinese hacking group tracked as StormBamboo has compromised an undisclosed internet service provider (ISP) to poison automatic software updates with malware. Also tracked as Evasive Panda, Daggerfly, and StormCloud, this cyber-espionage group has been active since at least 2012, targeting organizations across mainland China, Hong Kong, Macao, Nigeria, and various Southeast and East Asian countries. On Friday, Volexity threat researchers revealed that the Chinese cyber-espionage gang had exploited insecure HTTP software update mechanisms that didn't validate digital signatures to deploy malware payloads on victims' Windows and macOS devices... To do that, the attackers intercepted and modified victims' DNS requests and poisoned them with malicious IP addresses. This delivered the malware to the targets' systems from StormBamboo's command-and-control servers without requiring user interaction. Volexity's blog post says they observed StormBamboo "targeting multiple software vendors, who use insecure update workflows..." and then "notified and worked with the ISP, who investigated various key devices providing traffic-routing services on their network. As the ISP rebooted and took various components of the network offline, the DNS poisoning immediately stopped." BleepingComputer notes that "aAfter compromising the target's systems, the threat actors installed a malicious Google Chrome extension (ReloadText), which allowed them to harvest and steal browser cookies and mail data."

Read more of this story at Slashdot.