2019 DNS Encryption VPN 
Krebs on Security
FEBRUARY 18, 2019
” The DNS part of that moniker refers to the global “ D omain N ame S ystem ,” which serves as a kind of phone book for the Internet by translating human-friendly Web site names (example.com) into numeric Internet address that are easier for computers to manage. PASSIVE DNS. That changed on Jan.
Krebs on Security
JANUARY 24, 2020
On December 23, 2019, unknown attackers began contacting customer support people at OpenProvider , a popular domain name registrar based in The Netherlands. 23, 2019, the e-hawk.net domain was transferred to a reseller account within OpenProvider. ” Dijkxhoorn shared records obtained from OpenProvider showing that on Dec.
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Security Affairs
DECEMBER 12, 2019
” The GALLIUM threat actor is active, but its activity was more intense between 2018 and mid-2019. link] — bk (Ben K) (@bkMSFT) December 12, 2019. The operators leverage on low cost and easy to replace infrastructure using dynamic-DNS domains and regularly reused hop points. ” continues the analysis.
Fox IT
JANUARY 12, 2021
NCC Group and Fox-IT observed this threat actor during various incident response engagements performed between October 2019 until April 2020. After obtaining a valid account, they use this account to access the victim’s VPN, Citrix or another remote service that allows access to the network of the victim.
eSecurity Planet
MARCH 25, 2022
By exploiting weak server vulnerabilities, the Iran-based hackers were able to gain access, move laterally, encrypt IT systems, and demand ransom payment. For the generation of remote work and operations, Check Point Remote Access VPN offers central management and policy administration for controlling access to corporate networks.
eSecurity Planet
MAY 28, 2021
Ransomware: Encryption, Exfiltration, and Extortion. Ransomware perpetrators of the past presented a problem of availability through encryption. Detect Focus on encryption Assume exfiltration. Whether it’s a VPN , firewall , or remote access server, unauthorized entry via network gateways is a problem.
McAfee
SEPTEMBER 14, 2021
The PlugX families we observed used DNS [ T1071.001 ] [ T1071.004 ] as the transport channel for C2 traffic, in particular TXT queries. Another clue that helped us was the use of DNS tunneling by Winnti which we discovered traces of in memory. The hardcoded 208.67.222.222 resolves to a legitimate OpenDNS DNS server. 180.50.*.*.
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