Tag: server

400k Linux servers compromised for cryptocurrency theft and financial gain

May 15, 2024

One of the most advanced server-side malware campaigns is still growing, with hundreds of thousands of compromised servers, and it has diversified to include credit card and cryptocurrency theft. ESET Research has released its deep-dive investigation into one of the most advanced server-side malware campaigns, which is still growing – Ebury group with their malware … More 400k Linux servers compromised for cryptocurrency theft and financial gain

Even legitimate websites can become traps, and small/home offices need to be prepared

April 17, 2024

One’s personal digital life may be a threat to business. Small offices and home offices need proper prevention.  Heads of small or home offices most likely know how difficult it is to set boundaries between work and their personal lives. One minute you are doing taxes, and the next, you are browsing the internet looking … More Even legitimate websites can become traps, and small/home offices need to be prepared

New PowerExchange malware backdoors Microsoft Exchange servers

May 25, 2023

Bleeping computer reports* that A new PowerShell-based malware dubbed PowerExchange was used in attacks linked to APT34 Iranian state hackers to backdoor on-premise Microsoft Exchange servers. After infiltrating the mail server via a phishing email containing an archived malicious executable, the threat actors deployed a web shell named ExchangeLeech (first observed by the Digital14 Incident … More New PowerExchange malware backdoors Microsoft Exchange servers

Exchange servers under siege from at least 10 APT groups

March 11, 2021

ESET Research has found LuckyMouse, Tick, Winnti Group, and Calypso, among others, are likely using the recent Microsoft Exchange vulnerabilities to compromise email servers all around the world. ESET Research has discovered that more than ten different advanced persistent threat (APT) groups are exploiting the recent Microsoft Exchange vulnerabilities to compromise email servers. ESET has … More Exchange servers under siege from at least 10 APT groups

ESET discovers Kobalos: tiny yet complex Linux threat attacking supercomputers

February 3, 2021

ESET researchers discovered Kobalos, a malware that has been attacking supercomputers – high performance computer (HPC) clusters. ESET has worked with the CERN Computer Security Team and other organizations involved in mitigating attacks on these scientific research networks. Among other targets was a large Asian ISP, a North American endpoint security vendor as well as … More ESET discovers Kobalos: tiny yet complex Linux threat attacking supercomputers