SELECTED BY THE TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP
Title: Trickbot banking trojan and Ryuk ransomware targeting US hospitals and healthcare providers
Description: Cisco Talos has become aware that an adversary is leveraging Trickbot banking trojan and Ryuk ransomware to target U.S. hospitals and healthcare providers at an increasing rate. Security journalists reported on October 28, 2020 that the adversary was preparing to encrypt systems at "potentially hundreds" of medical centers and hospitals, based on a tip from a researcher who had been monitoring communications for the threat actor. On October 28 and 29, these claims were supported by the reports of six U.S. hospitals being compromised with Ryuk in the span of 24 hours.
References: https://blog.talosintelligence.com/2020/10/healthcare-advisory.html
Snort SIDs:
RYUK
50644, 50645, 53332, 53333, 53335, 53336
EMOTET
43890, 43891, 44559, 44560, 47616, 47617, 48402, 51971, 52029, 53108, 53353, 53354, 55931, 56003, 143892, 49888, 49889, 53770, 53771, 54804, 54805, 54900, 54901, 54924, 54925, 55253, 55254, 55591, 55592, 55781, 55782, 55787, 55788, 55869, 55870, 55873, 55874, 55929, 55930, 56046, 56047, 51967, 51968, 51969, 51970, 53355, 53356, 53357, 53358, 53359, 53360
TRICKBOT
40643, 40644, 44399, 44400, 44401, 44402, 44403, 44404, 44405, 44406, 44407, 44408, 44409, 44410, 44411, 44412, 44413, 44414, 44415, 47618, 50712, 50713, 50714, 50715, 54014, 54061, 54062, 54063, 54064, 54065, 54066, 54067, 54068, 54069, 54070, 54071, 54072, 54073, 54074, 54075, 54076, 54077, 54078, 54079, 54080, 54199, 54200, 54201, 54202, 54203, 54204, 54205, 54206, 54207, 54208, 54209, 54210, 54211, 54212, 54213, 55002, 55003, 55004, 55005
POWERSHELL EMPIRE
38259, 38260, 38261, 44561, 44562, 44563, 44564, 45352, 52063, 52064
COBALT STRIKE
53656, 53657, 53658, 53659, 45907, 45908, 53972, 53973, 53974, 53975, 30229, 30471, 30480, 53757, 53758, 54095, 54096, 8068, 54110, 54111, 54112, 54113, 54114, 54115, 54116, 54117, 54169, 54170, 54171, 54172, 54173, 54174, 54175, 54183, 13913, 23878, 38038, 54180, 54181, 54182
Title: Talos discovers multiple remote vulnerabilities in Synology Router Manager
Description: Cisco Talos recently discovered multiple remote vulnerabilities in software that helps power Synology routers. The bugs exist in Synology Router Manager (SRM) -- a Linux-based operating system for Synology routers -- and QuickConnect, a feature inside SRM that allows users to remotely connect to their routers. An adversary could use these vulnerabilities to carry out a range of malicious actions, including executing remote code on the device, the exposure of sensitive information regarding the victim's network and communication with other devices connected to the same network.
References: https://blog.talosintelligence.com/2020/10/vulnerability-spotlight-multiple.html#more
Snort SIDs: 53755, 53756, 53839, 53840, 53959, 54009