OXFORD, U.K. — Dicembre 18, 2019 —

 Sophos (LSE: SOPH), a global leader in next-generation cybersecurity, today published the SophosLabs report MyKings: The Slow but Steady Growth of a Relentless Botnet, which details the morphing attack components of the globally-reaching MyKings cryptominer.

MyKings contains the perfect storm of attack methods highlighted in SophosLabs’ 2020 Threat Report – access through open remote services, botnets to orchestrate parts of the attack, and Living off the Land (LotL) to evade detection – that are used to drop cryptominers. The report covers the interaction between all of these components and their chain reaction to impact computers. The report also analyzes cybercriminal behaviors to further explain the characteristics of MyKings.

“High-end or nation-state sponsored cyberattackers have the resources to purchase or develop zero-day exploits themselves. On the flip side, low-end cybercriminals use cheap or free builder kits available in underground, dark web forums, but lack the skills to do anything except execute the builders,” said Gabor Szappanos, report author and threat research director, SophosLabs. “The MyKings group is in between these two categories; they are the ‘SMB of cybercrime.’ These criminals don’t invest money into expensive tools, but they have the skills and development power to modify and enhance open source components. Their modus operandi is to invest significant amounts of development time into customizing the public domain tools they are using. This is a reminder that cybercriminals are enhancing their capabilities all the time and defenders should adopt this mindset for best security practices.”

Below is an example of how the MyKings attackers enhanced the malware over time:

  • Some older variants of MyKings download an update from 
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  • Subsequently, cybercriminals added support for the EternalBlue exploit into newer versions of MyKings. This functionality is not integrated into the spreader program, but rather exists as a separate executable, converted from Python scripts, that is downloaded and executed by the main spreader program.

Global Distribution

As indicated in the MyKings report, the worldwide activity map includes approximately 45,000 impacted hosts. Top countries include: China, Taiwan, Russia, Brazil, United States, India, and Japan. 

Worldwide MyKings Activity Map

 

Other Key Findings

  • The botnet can spread by attacking weak username/password combinations via MySQL, MSSQL, telnet, ssh, IPC, WMI, RDP, CCTV connections
  • The main payloads are the Forshare trojan and various Monero cryptominers
  • The botnet still mines about 5 XMR ($300), per day

Advice for Defenders

  • Keep computers up-to-date with security patches. MyKings uses EternalBlue which was patched two years ago
  • Change default passwords and apply strong, unique passwords. MyKings uses known weak passwords to attack web services
  • Don’t expose Server Message Block (SMB), Remote Desktop Protocol (RDP) and similar remote access services to the Internet
  • Use up-to-date security software. Sophos Intercept X provides protection at several points

Informazioni su Sophos

Sophos è un leader globale e innovatore di soluzioni di sicurezza avanzate per sconfiggere gli attacchi informatici. L'azienda ha acquisito Secureworks il Febbraio 2025, unendo due pionieri che hanno ridefinito l'industria della cybersicurezza con i loro servizi, tecnologie e prodotti innovativi e ottimizzati grazie all'intelligenza artificiale nativa. Sophos è ora il più grande fornitore di servizi di Managed Detection and Response (MDR), a supporto di oltre 28.000 organizzazioni. Oltre a MDR e ad altri servizi, il portfoglio completo di Sophos comprende soluzioni leader di mercato per endpoint, network, email e cloud security che interagiscono attraverso la piattaforma Sophos Central e innalzano le barriere di sicurezza. Secureworks fornisce l'innovativa Taegis XDR/MDR, anch’essa leader di mercato, l’ identity threat detection and response (ITDR), le capacità SIEM di nuova generazione, il managed risk e un ampio set di Advisory Services. Sophos vende tutte queste soluzioni attraverso partner rivenditori, Managed Service Provider (MSP) e Managed Security Service Provider (MSSP) in tutto il mondo, difendendo oltre 600.000 organizzazioni da phishing, ransomware, furto di dati, altri crimini informatici quotidiani e state-sponsored. Le soluzioni sono alimentate dall'intelligence sulle minacce acquisita storicamente e in tempo reale di Sophos X-Ops e dal Counter Threat Unit (CTU) appena aggiunto. Sophos ha sede a Oxford, Regno Unito. Ulteriori informazioni sono disponibili su www.sophos.it.