The Linuxsys Cryptominer
Essential information
- Published
- 18/07/2025 07:36
- Modified
- 18/07/2025 08:51
- Tags
- 2025-07-18 compromised websites cryptomining linuxsys xmrig
- Related entities
- 6 techniques (mitre), 2 malware
Description
A long-running cryptomining campaign exploiting multiple vulnerabilities has been active since 2021, using consistent attack methodologies. The attacker compromises legitimate websites to distribute malware, enabling stealthy delivery and detection evasion. The campaign targets various vulnerabilities, including CVE-2021-41773, CVE-2024-0012, CVE-2024-9474, CVE-2024-36401, CVE-2023-22527, CVE-2023-34960, and CVE-2023-38646. The attacker uses a script to download configuration files and a coinminer (linuxsys) from compromised hosts. The operation appears small-scale but has persisted for years, carefully targeting high-interaction systems and avoiding low-interaction honeypots. The attacker's success stems from their consistent techniques, including n-day exploitation and staging content on compromised hosts.