SSHStalker Botnet Uses IRC C2 to Control Linux Systems via Legacy Kernel Exploits

Cybersecurity researchers have disclosed details of a new botnet operation called SSHStalker that relies on the Internet Relay Chat IRC communication protocol for command-and-control C2 purposes. "The toolset blends stealth helpers with legacy-era Linux exploitation: Alongside log cleaners...

EnemyBot Linux Botnet Now Exploits Web Server, Android and CMS Vulnerabilities

A nascent Linux-based botnet named Enemybot has expanded its capabilities to include recently disclosed security vulnerabilities in its arsenal to target web servers, Android devices, and content management systems CMS. "The malware is rapidly adopting one-day vulnerabilities as part of its...

New "B1txor20" Linux Botnet Uses DNS Tunnel and Exploits Log4J Flaw

A previously undocumented backdoor has been observed targeting Linux systems with the goal of corralling the machines into a botnet and acting as a conduit for downloading and installing rootkits. Qihoo 360's Netlab security team called it B1txor20 "based on its propagation using the file name...

Linux Botnet Adding BlueKeep-Flawed Windows RDP Servers to Its Target List

Cybersecurity researchers have discovered a new variant of WatchBog , a Linux-based cryptocurrency mining malware botnet, which now also includes a module to scan the Internet for Windows RDP servers vulnerable to the Bluekeep flaw. BlueKeep is a highly-critical, wormable, remote code execution...

A week in security (January 8 – January 14)

It's very early in the year, yet everyone has already had a complete meltdown pun intended over a number of serious vulnerabilities found in legacy and modern microprocessors. Last week, rightly so, vendors released patches for hardware and OSes to help mitigate these threats. However, problems i...

Hacker Who Used Linux Botnet to Send Millions of Spam Emails Pleads Guilty

A Russian man accused of infecting tens of thousands of computer servers worldwide to generate millions in illicit profit has finally entered a guilty plea in the United States and is going to face sentencing in August. Maxim Senakh, 41, of Velikii Novgorod, Russia, pleaded guilty in a US federal...