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ESXiArgs Ransomware Hits Over 500 New Targets in European Countries

ESXiArgs Ransomware Hits Over 500 New Targets in European Countries

Feb 16, 2023 Cyber Attack / Ransomware
More than 500 hosts have been newly compromised en masse by the ESXiArgs ransomware strain, most of which are located in France, Germany, the Netherlands, the U.K., and Ukraine. The  findings  come from attack surface management firm Censys, which  discovered  "two hosts with strikingly similar ransom notes dating back to mid-October 2022, just after ESXi versions 6.5 and 6.7 reached end of life." The first set of infections dates back to October 12, 2022, much earlier than when the campaign  began to gain traction  at the start of February 2023. Then on January 31, 2023, the ransom notes on the two hosts are said to have been updated with a revised version that matches the ones used in the current wave. Some of the crucial differences between the two ransom notes include the use of an onion URL instead of a Tox chat ID, a Proton Mail address at the bottom of the note, and a lower ransom demand (1.05 Bitcoin vs. 2.09 Bitcoin). "Each variant of the ransom notes from
Cacti Servers Under Attack as Majority Fail to Patch Critical Vulnerability

Cacti Servers Under Attack as Majority Fail to Patch Critical Vulnerability

Jan 14, 2023 Server Security / Patch Management
A majority of internet-exposed Cacti servers have not been patched against a recently patched critical security vulnerability that has come under active exploitation in the wild. That's according to attack surface management platform Censys, which  found  only 26 out of a total of 6,427 servers to be running a  patched version  of Cacti (1.2.23 and 1.3.0). The  issue  in question relates to  CVE-2022-46169  (CVSS score: 9.8), a combination of authentication bypass and command injection that enables an unauthenticated user to execute arbitrary code on an affected version of the open-source, web-based monitoring solution. Details about the flaw, which impacts versions 1.2.22 and below, were first revealed by SonarSource. The flaw was reported to the project maintainers on December 2, 2022. "A hostname-based authorization check is not implemented safely for most installations of Cacti," SonarSource researcher Stefan Schiller  noted  earlier this month, adding "uns
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