News • Insights • Analysis
Unit 42 researchers analyzed network attack trends over Winter 2020 and discovered many interesting exploits in the wild. During the period of Nov. 2020 to Jan. 2021, the majority of the attacks we observed were classified as critical (75%), compared Read More …
Cyber criminals and nation-state cyber-espionage operations are actively scanning for unpatched vulnerabilities in Fortinet VPNs; organisations that use Fortigate firewalls on their network, and have yet to apply a critical security update released almost two years ago, should assume they’ve Read More …
A vulnerability impacting Fortinet VPNs is being exploited by a new human-operated ransomware strain known as Cring to breach and encrypt industrial sector companies’ networks. Cring ransomware (also known as Crypt3r, Vjiszy1lo, Ghost, Phantom) was discovered by Amigo_A in January Read More …
The FBI and the Cybersecurity and Infrastructure Security Agency are warning that advanced persistent threat (APT) nation-state actors are actively exploiting known security vulnerabilities in the Fortinet FortiOS cybersecurity operating system, affecting the company’s SSL VPN products. According to an Read More …
Hancitor is an information stealer and malware downloader used by a threat actor designated as MAN1, Moskalvzapoe or TA511. In a threat brief from 2018, we noted Hancitor was relatively unsophisticated, but it would remain a threat for years to Read More …
Popular npm library netmask has a critical networking vulnerability. Netmask is frequently used by hundreds of thousands of applications to parse IPv4 addresses and CIDR blocks or compare them. The component gets over 3 million weekly downloads, and as of Read More …
A popular line of small business routers made by Cisco Systems are vulnerable to a high-severity vulnerability. If exploited, the flaw could allow a remote – albeit authenticated – attacker to execute code or restart affected devices unexpectedly. Cisco issued Read More …
On Feb. 23, 2021, one of the IPs involved in the attack was updated to serve a Mirai variant leveraging CVE-2021-27561 and CVE-2021-27562, mere hours after vulnerability details were published. On March 3, 2021, the same samples were served from Read More …
Researchers have discovered what they say is the first variant of the Gafgyt botnet family to cloak its activity using the Tor network. Gafgyt, a botnet that was uncovered in 2014, has become infamous for launching large-scale distributed denial-of-service (DDoS) Read More …
Fast flux is a technique used by cybercriminals to increase their infrastructure’s resilience by making law enforcement takedown of their servers and blocklisting of their IP addresses harder. It is critical for these cybercriminals to maintain their networks’ uptime to Read More …
