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* Home * Cyber Crime * Cyber warfare * APT * Data Breach * Deep Web * Digital ID * Hacking * Hacktivism * Intelligence * Internet of Things * Laws and regulations * Malware * Mobile * Reports * Security * Social Networks * Terrorism * ICS-SCADA * EXTENDED COOKIE POLICY * Contact me MUST READ Headlines * Healthcare - Patient or Perpetrator? – The Cybercriminals Within * Operation Cyclone targets Clop Ransomware affiliates * Nation-state actors target critical sectors by exploiting the CVE-2021-40539 flaw * Hungarian official confirms Hungary used NSO Group Pegasus spyware * FBI warns of fraudulent schemes using cryptocurrency ATMs and QR for payments * Experts spotted a phishing campaign impersonating security firm Proofpoint * Home * Cyber Crime * Cyber warfare * APT * Data Breach * Deep Web * Digital ID * Hacking * Hacktivism * Intelligence * Internet of Things * Laws and regulations * Malware * Mobile * Reports * Security * Social Networks * Terrorism * ICS-SCADA * EXTENDED COOKIE POLICY * Contact me NEW GOLANG-BASED CRYPTO WORM INFECTS WINDOWS AND LINUX SERVERS December 31, 2020 By Pierluigi Paganini Powered by pixfutureⓘ EXPERTS FROM INTEZER DISCOVERED A NEW AND SELF-SPREADING GOLANG-BASED MALWARE THAT TARGETS WINDOWS AND LINUX SERVERS. Experts from Intezer discovered a Golang-based worm that targets Windows and Linux servers. Powered by pixfutureⓘ The malware has been active since early December targeting public-facing services, including MySQL, Tomcat admin panel and Jenkins that are protected with weak passwords. The worm spreads by scanning for systems and running a credential spraying brute force attack. The malware leverages a hardcoded dictionary of weak credentials for the attack, such as root:123456. Experts pointed out that an older version of the worm also attempted to exploit CVE-2020-14882 WebLogic’s vulnerability. The attacks observed by the experts use three files hosted on the same C&C, a dropper script (bash or powershell), a Golang binary worm, and the XMRig Miner. The threat actors behind this campaign have been actively updating the malicious code. “The ELF worm binary and the bash dropper script are both fully undetected in VirusTotal at the time of this publication.” reads the analysis. “The malware behaves similarly on both Linux and Windows operating systems.” Upon compromising a server, the malware deploys the loader script (ld.sh for Linux and ld.ps1 for Windows) that drops the XMRig miner and Golang-based worm binary. The Linux variant of the worm checks if a process on the infected machine is listening on port 52013. The presence of the listener on this port acts as a mutex for the malicious code, it kills itself if it detects a socket for the port otherwise it will open its own socket. Experts detailed the attack chain for both Linux and Windows servers, they also provided the following list of precautions to prevent brute force attacks and vulnerability exploits: 1. Use complex passwords, limit login attempts and use 2FA (Two-Factor Authentication) if possible. 2. Minimize your use of publicly facing services. 3. Keep your software updated with the latest security patches. 4. Use a Cloud Workload Protection Platform (CWPP), like Intezer Protect, to gain full runtime visibility over the code in your system and get alerted on any malicious or unauthorized code. We have a free community edition. “In 2020, we saw a noticeable trend of Golang malware targeting different platforms, including Windows, Linux, Mac and Android. We assess with high confidence that this will continue in 2021.” conclude the experts. “The fact that the worm’s code is nearly identical for both its PE and ELF malware—and the ELF malware going undetected in VirusTotal—demonstrates that Linux threats are still flying under the radar for most security and detection platforms.” If you want to receive the weekly Security Affairs Newsletter for free subscribe here. Pierluigi Paganini (SecurityAffairs – hacking, Golang-based worm) Powered by pixfutureⓘ Share this... Facebook Twitter Linkedin SHARE THIS: * Twitter * Print * LinkedIn * Facebook * More * * Tumblr * Pocket * * cryptocurrency malwareGoLang based wormHackinghacking newsinformation security newsIT Information SecuritymalwarePierluigi PaganiniSecurity AffairsSecurity News -------------------------------------------------------------------------------- SHARE ON * * * * * * * PIERLUIGI PAGANINI Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer. Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US. Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines. Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”. -------------------------------------------------------------------------------- PREVIOUS ARTICLE Emotet campaign hits Lithuania's National Public Health Center and several state institutions NEXT ARTICLE Threat actor is selling 368.8 million records from 26 data breaches -------------------------------------------------------------------------------- YOU MIGHT ALSO LIKE HEALTHCARE – PATIENT OR PERPETRATOR? – THE CYBERCRIMINALS WITHIN November 8, 2021 By Pierluigi Paganini OPERATION CYCLONE TARGETS CLOP RANSOMWARE AFFILIATES November 8, 2021 By Pierluigi Paganini * SPONSORED CONTENT * * PIXFUTURE * DIGGING THE DEEP WEB: EXPLORING THE DARK SIDE OF THE WEB * SECURITYAFFAIRS AWARDED AS BEST EUROPEAN CYBERSECURITY TECH BLOG AT EUROPEAN CYBERSECURITY BLOGGER AWARDS * CENTER FOR CYBER SECURITY AND INTERNATIONAL RELATIONS STUDIES * SUBSCRIBE SECURITY AFFAIRS NEWSLETTER More Story EMOTET CAMPAIGN HITS LITHUANIA'S NATIONAL PUBLIC HEALTH CENTER AND SEVERAL STATE INSTITUTIONS An Emotet campaign hit Lithuania, the malware has infected systems at the National Center for Public Health (NVSC) and several... Copyright 2021 Security Affairs by Pierluigi Paganini All Right Reserved. Back to top * Home * Cyber Crime * Cyber warfare * APT * Data Breach * Deep Web * Digital ID * Hacking * Hacktivism * Intelligence * Internet of Things * Laws and regulations * Malware * Mobile * Reports * Security * Social Networks * Terrorism * ICS-SCADA * EXTENDED COOKIE POLICY * Contact me This site uses cookies, including for analytics, personalization, and advertising purposes. For more information or to change your cookie settings, click here. If you continue to browse this site without changing your cookie settings, you agree to this use. Accept Read More Privacy and Cookies Policy Close PRIVACY OVERVIEW This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities... 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