{"id":5267,"date":"2025-05-20T04:35:07","date_gmt":"2025-05-20T04:35:07","guid":{"rendered":"http:\/\/localhost\/?p=5267"},"modified":"2025-05-20T04:35:07","modified_gmt":"2025-05-20T04:35:07","slug":"go-based-malware-deploys-xmrig-miner-on-linux-hosts-via-redis-configuration-abuse","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=5267","title":{"rendered":"Go-Based Malware Deploys XMRig Miner on Linux Hosts via Redis Configuration Abuse"},"content":{"rendered":"<h2>Security Update News<\/h2>\n<h3>Update Information<\/h3>\n<table style=\"width:100%; border-collapse: collapse; margin-bottom: 20px;\">\n<tr>\n<th style=\"text-align: left; padding: 8px; border: 1px solid #ddd; \">Title<\/th>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">Go-Based Malware Deploys XMRig Miner on Linux Hosts via Redis Configuration Abuse<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border: 1px solid #ddd; \">Update ID<\/th>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">THN:3CD0FCE2DB2F187FC387B8BE3A56CE0F<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border: 1px solid #ddd; \">Type<\/th>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">thn<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border: 1px solid #ddd; \">Published<\/th>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">2025-05-20T08:25:00<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border: 1px solid #ddd; \">Last Updated<\/th>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">2025-05-20T08:25:14<\/td>\n<\/tr>\n<\/table>\n<h3>Security Impact<\/h3>\n<table style=\"width:100%; border-collapse: collapse; margin-bottom: 20px;\">\n<tr>\n<th style=\"text-align: left; padding: 8px; border: 1px solid #ddd; \">CVSS Score<\/th>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">0.0<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border: 1px solid #ddd; \">Severity<\/th>\n<td style=\"padding: 8px; border: 1px solid #ddd; color: #666666; font-weight: bold;\">NONE<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border: 1px solid #ddd; \">Attack Vector<\/th>\n<td style=\"padding: 8px; border: 1px solid #ddd;\"><\/td>\n<\/tr>\n<\/table>\n<h3>Affected CVEs<\/h3>\n<div style=\" padding: 15px; border: 1px solid #ddd; margin-bottom: 20px;\">\n<ul style=\"margin: 0; padding-left: 20px;\">\n<\/ul>\n<\/div>\n<h3>Update Details<\/h3>\n<div style=\"; padding: 15px; border-left: 4px solid #4CAF50; margin-bottom: 20px;\">\n![Go-Based Malware](data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mP8Xw8AAoMBgDTD2qgAAAAASUVORK5CYII=)<\/p>\n<p>Cybersecurity researchers are calling attention to a new Linux cryptojacking campaign that&#8217;s targeting publicly accessible Redis servers.<\/p>\n<p>The malicious activity has been codenamed **RedisRaider** by Datadog Security Labs.<\/p>\n<p>&#8220;RedisRaider aggressively scans randomized portions of the IPv4 space and uses legitimate Redis configuration commands to execute malicious cron jobs on vulnerable systems,&#8221; security researchers Matt Muir and Frederic Baguelin said.<\/p>\n<p>The end goal of the campaign is to drop a Go-based primary payload that&#8217;s responsible for unleashing an XMRig miner on compromised systems.<\/p>\n<p>The activity entails using a bespoke scanner to identify publicly accessible Redis servers across the internet and then issuing an INFO command to determine if the instances are running on a Linux host. If it&#8217;s found to be the case, the scanning algorithm proceeds to abuse Redis&#8217;s SET command to inject a cron job.<\/p>\n<p>![Cybersecurity](data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mP8Xw8AAoMBgDTD2qgAAAAASUVORK5CYII=)<\/p>\n<p>The malware then uses the CONFIG command to change the Redis working directory to &#8220;\/etc\/cron.d&#8221; and write to the location a database file named &#8220;apache&#8221; so that it&#8217;s periodically picked by the cron scheduler and runs a Base64-encoded shell script, which subsequently downloads the RedisRaider binary from a remote server.<\/p>\n<p>The payload essentially serves as a dropper for a bespoke version of XMRig and also propagates the malware to other Redis instances, effectively expanding its reach and scale.<\/p>\n<p>&#8220;In addition to server-side cryptojacking, RedisRaider&#8217;s infrastructure also hosted a web-based Monero miner, enabling a multi-pronged revenue generation strategy,&#8221; the researchers said.<\/p>\n<p>&#8220;The campaign incorporates subtle anti-forensics measures, such as short-key time-to-live (TTL) settings and database configuration changes, to minimize detection and hinder post-incident analysis.&#8221;<\/p>\n<p>The disclosure comes as Guardz disclosed details of a targeted campaign exploiting legacy authentication protocols in Microsoft Entra ID to brute-force accounts. The activity, observed between March 18 and April 7, 2025, has been found to leverage BAV2ROPC (short for &#8220;Basic Authentication Version 2 &#8211; Resource Owner Password Credential&#8221;) to bypass defenses like multi-factor authentication (MFA) and Conditional Access.<\/p>\n<p>&#8220;The tracking and investigation revealed systematic exploitation attempts that leveraged BAV2ROPC&#8217;s inherent design limitations, which predated contemporary security architectures,&#8221; Elli Shlomo, head of security research at Guardz, said. &#8220;The threat actors behind this campaign showed a deep understanding of identity systems.&#8221;<\/p>\n<p>The attacks are said to have originated mainly from Eastern Europe and the Asia-Pacific regions, primarily targeting admin accounts using legacy authentication endpoints.<\/p>\n<p>&#8220;While regular users received the bulk of authentication attempts (50,214), admin accounts and shared mailboxes were targeted at a specific pattern, with admin accounts receiving 9,847 attempts across 432 IPs over 8 hours, suggesting an average of 22.79 attempts per IP and a velocity of 1,230.87 attempts per hour,&#8221; the company said.<\/p>\n<p>![Cybersecurity](data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mP8Xw8AAoMBgDTD2qgAAAAASUVORK5CYII=)<\/p>\n<p>&#8220;This indicates a highly automated and concentrated attack campaign specifically designed to compromise privileged accounts while maintaining a broader attack surface against regular users.&#8221;<\/p>\n<p>This is not the first time legacy protocols have been abused for malicious activities. In 2021, Microsoft divulged a large-scale business email compromise (BEC) campaign that used BAV2ROPC and IMAP\/POP3 to circumvent MFA and exfiltrate email data.<\/p>\n<p>To mitigate the risks posed by such attacks, it&#8217;s advised to block legacy authentication via a Conditional Access policy, disable BAV2ROPC, and turn off SMTP AUTH in Exchange Online if not in use.<\/p>\n<p>Found this article interesting? Follow us on Twitter _\uf099_ and LinkedIn to read more exclusive content we post.\n<\/div>\n<p><a href=\"https:\/\/thehackernews.com\/2025\/05\/go-based-malware-deploys-xmrig-miner-on.html\" target=\"_blank\" style=\"display: inline-block; color: white; padding: 10px 20px; text-decoration: none; border-radius: 4px;\">View Advisory Details<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Security Update News Update Information Title Go-Based Malware Deploys XMRig Miner on Linux Hosts via Redis Configuration Abuse Update ID THN:3CD0FCE2DB2F187FC387B8BE3A56CE0F Type thn Published 2025-05-20T08:25:00&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[6,8,34,12,13,33,7,11,43,5],"class_list":["post-5267","post","type-post","status-publish","format-standard","hentry","category-category_news","tag-cve","tag-cvss","tag-cvss-00","tag-exploit","tag-news","tag-none","tag-security","tag-tapic","tag-thn","tag-vulnerability"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - 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