threat-intel China-Linked Jewelbug Uses XG-Web for Government Espionage and Crypto Fraud The China-linked threat actor Jewelbug, operating as a ‘hack-for-hire’ group, is engaged in both sophisticated government espionage targeting nations across the Middle East, Southeast Asia, and South Asia, and cryptocurrency fraud operations targeting Chinese-speaking users. The group utilizes a central control panel,… The Hacker News · Aug 14, 2026 High CHMISOespionagecryptocurrencyhack-for-hire
threat-intel New HollowGraph Malware Abuses Microsoft 365 Calendar for C&C Communication HollowGraph, a new malware dubbed by Group-IB, leverages Microsoft 365 calendars to establish command-and-control communication, specifically targeting Israeli entities. The malware uses a sophisticated technique to hide… SecurityWeek · Jul 21, 2026 High ILmicrosoft 365c&ccalendar
threat-intel GigaWiper Combines Multiple Malware for System-Level Sabotage Microsoft has identified a sophisticated malware strain called GigaWiper, a Go-based backdoor combining multiple destructive capabilities – including a physical disk wiper, ransomware-like encryption, and persistent C&C… SecurityWeek · Jul 10, 2026 High IRbackdoorransomwarewipe
threat-intel China-Linked APT Expands Arsenal With New ‘Leash’ Backdoors A China-linked advanced persistent threat group, UAT-7810, has expanded its arsenal with new backdoors, including LongLeash, DogLeash, and JarLeash, as part of a long-running espionage campaign. The group primarily targe… SecurityWeek · Jul 8, 2026 High CVE-2020-22653CVE-2020-22658CVE-2023-25717CNbackdooraptespionage
threat-intel Russian APT Deploys ‘StockStay’ Backdoor Against Ukrainian Targets Russia-linked APT Turla has been deploying a new .NET backdoor, dubbed StockStay, to conduct ongoing cyber espionage against Ukrainian government and military organizations, as well as entities with interests in Italian… SecurityWeek · Jun 26, 2026 High CVE-2025-8088UKRUITespionagebackdoorphishing
threat-intel ESET takes part in Operation Endgame to disrupt Amadey and Stealc ESET, in collaboration with Microsoft DCU and other partners, successfully disrupted the Amadey and Stealc botnets as part of Operation Endgame. These botnets, sold as a service on darknet forums, utilize a MaaS model wh… WeLiveSecurity · Jun 24, 2026 High maasbotnetdarknet
threat-intel FishMonger’s arsenal upgraded: SprySOCKS for Windows ESET researchers have discovered two new, undocumented Windows variants of FishMonger's SprySOCKS backdoor, operated by the Chinese threat actor I-SOON (believed to be part of the Winnti Group). These variants, WIN_DRV a… WeLiveSecurity · Jun 16, 2026 High CHHOTAwindowsbackdoorkernel driver
threat-intel Webworm: New burrowing techniques This blog post details the evolving tactics of Webworm, a China-aligned APT group, particularly their activity in 2025. Webworm has shifted away from traditional backdoors in favor of more sophisticated techniques, inclu… WeLiveSecurity · May 20, 2026 High CVE-2017-7692BEITSEdiscordmicrosoft graph apic&c
