{ "family": "mmxmr", "sample_count": 1, "category": "trojan", "description": "

Executive Summary

\nMMXMR is a specialized malicious cryptocurrency miner (cryptojacking malware) explicitly designed to illicitly mine Monero (XMR). By covertly hijacking the CPU and occasionally GPU resources of infected endpoints, MMXMR generates cryptocurrency for its operators, leading to severe performance degradation, increased power consumption, and hardware wear on the victim's machines.\n\n

Technical Implementation and Execution

\nMMXMR is typically distributed via exploit kits targeting unpatched vulnerabilities, disguised as legitimate software updates, or dropped as a secondary payload by initial access trojans.\n\nUpon execution, MMXMR focuses on stealth and maximum resource utilization:\n\n\n

Operational Impact

\nWhile MMXMR does not steal data or encrypt files, it causes significant operational disruption. Infected machines suffer from extreme latency, overheating, and frequent crashes. In enterprise environments, widespread cryptojacking infections dramatically increase electricity costs and accelerate hardware degradation.\n\n

Detection and Remediation

\n", "cta": "Published by the SystemHelpdesk team.", "aliases": [ "Miner.MMXMR", "CoinMiner.Monero", "Riskware.BitCoinMiner" ], "enrichment_level": "expert-seo", "faq": [ { "@type": "Question", "name": "What is Mmxmr and what threat category does it belong to?", "acceptedAnswer": { "@type": "Answer", "text": "Mmxmr is classified as a Trojan. Documented across security telemetry, it is engineered to execute unauthorized operations, establish persistent footholds on target endpoints, and facilitate malicious campaigns targeting enterprise and individual environments." } }, { "@type": "Question", "name": "How does Mmxmr establish persistence and evade defensive controls?", "acceptedAnswer": { "@type": "Answer", "text": "Mmxmr typically establishes persistence through registry run keys, scheduled tasks, or service installations, while evading signature-based antivirus solutions through code obfuscation, memory injection, or anti-analysis sandbox checks." } }, { "@type": "Question", "name": "What are the essential incident response steps for mitigating a Mmxmr compromise?", "acceptedAnswer": { "@type": "Answer", "text": "Security teams responding to Mmxmr should immediately isolate affected endpoints from the network, perform memory triage to capture volatile forensic artifacts, audit registry and startup persistence mechanisms, revoke exposed user credentials, and restore systems from verified, clean backups." } }, { "@type": "Question", "name": "What secondary payloads and staging behaviors are commonly associated with Miner.MMXMR?", "acceptedAnswer": { "@type": "Answer", "text": "Miner.MMXMR frequently operates as a loader or dropper designed to establish a foothold before downloading and executing secondary high-impact malware payloads. Depending on the threat actor's objectives, these dropped modules can range from ransomware and banking injects to modular infostealers and remote management backdoors." } }, { "@type": "Question", "name": "How can security operations teams effectively detect and hunt for Miner.MMXMR across enterprise endpoints?", "acceptedAnswer": { "@type": "Answer", "text": "Defenders should hunt for Miner.MMXMR by deploying behavioral endpoint detection and response (EDR) rules that monitor suspicious process spawning (such as cmd.exe or powershell.exe spawned from office documents or temporary directories), anomalous outbound network connections from non-browser binaries, and unauthorized modifications to Windows Run keys and scheduled task registries." } } ], "faq_count": 5, "mitre_attack": [ "T1496", "T1055", "T1059" ], "cisa_advisory": null, "last_updated": "2026-10-15", "type": "Cryptominer", "target_industries": [ "Global / Opportunistic" ], "motivation": "Opportunistic", "threat_actors": [ "Unknown / Cybercriminal" ], "target_geographies": [ "Global" ], "attack_stage": [ "execution", "persistence" ], "ecosystem": [ "windows_pe" ], "is_emerging": false, "mitre_attack_detail": [ { "id": "T1496", "name": "Resource Hijacking (The core function of mining Monero cryptocurrency)", "tactic": "Impact" }, { "id": "T1055", "name": "Process Injection", "tactic": "Defense Evasion" }, { "id": "T1059", "name": "Command and Scripting Interpreter", "tactic": "Execution" } ], "containment_steps": [ "Sever network connectivity for the flagged endpoint to terminate persistent command-and-control (C2) communication channels and stop Mmxmr from retrieving secondary stage payloads.", "Capture process memory triage to detect and terminate malicious threads injected by Mmxmr into legitimate system processes such as explorer.exe or svchost.exe.", "Audit Windows Registry Run keys (HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run) and Task Scheduler entries to locate and purge Mmxmr persistence hooks.", "Deploy updated enterprise EDR detection signatures and conduct an out-of-band endpoint scan to isolate dropped binaries and staged payloads.", "Rotate all credentials, domain user passwords, and session cookies active on the system during the Mmxmr execution timeframe." ], "what_to_avoid": [ "Do not assume the incident is resolved simply because an antivirus tool removed the initial Mmxmr dropper; always verify that secondary payloads and persistence hooks have been eradicated.", "Avoid logging in with Domain Admin or privileged credentials on a machine suspected of running Mmxmr until memory triage is complete.", "Do not delay host isolation; automated lateral movement and credential dumping can occur within minutes of initial execution." ], "target_platforms": [ "Windows 11", "Windows 10", "Windows 7" ] }