Posted on Friday May 25, 2018
Cybersecurity researchers have identified that foreign cyber actors have compromised hundreds of thousands of home and office routers and other networked devices worldwide [1]Â [2] [3]. The actors used VPNFilter malware to target small office/home office (SOHO) routers. VPNFilter malware uses modular functionality to collect intelligence, exploit local area network (LAN) devices, and block actor-configurable network traffic. Specific characteristics of VPNFilter have only been observed in the BlackEnergy malware, specifically BlackEnergy versions 2 and 3.
Posted on Monday May 21, 2018
On May 21, 2018, new variants of the side-channel central processing unit (CPU) hardware vulnerabilities known as Spectre and Meltdown were publicly disclosed. These variants—known as 3A and 4—can allow an attacker to obtain access to sensitive information on affected systems.
Posted on Monday April 16, 2018
Update: On April 19, 2018, an industry partner notified NCCIC and the FBI of malicious cyber activity that aligns with the techniques, tactics, and procedures (TTPs) and network indicators listed in this Alert. Specifically, the industry partner reported the actors redirected DNS queries to their own infrastructure by creating GRE tunnels and obtained sensitive information, which include the configuration files of networked devices.
Posted on Tuesday March 27, 2018
According to information derived from FBI investigations, malicious cyber actors are increasingly using a style of brute force attack known as password spraying against organizations in the United States and abroad.
Posted on Thursday March 15, 2018
This joint Technical Alert (TA) is the result of analytic efforts between the Department of Homeland Security (DHS) and the Federal Bureau of Investigation (FBI). This alert provides information on Russian government actions targeting U.S. Government entities as well as organizations in the energy, nuclear, commercial facilities, water, aviation, and critical manufacturing sectors. It also contains indicators of compromise (IOCs) and technical details on the tactics, techniques, and procedures (TTPs) used by Russian government cyber actors on compromised victim networks. DHS and FBI produced this alert to educate network defenders to enhance their ability to identify and reduce exposure to malicious activity.
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