{
  "family": "omyaamfbexii",
  "sample_count": 1,
  "category": "ransomware",
  "description": "<h3>Executive Summary</h3>\n\"Omyaamfbexii\" is a generic detection identifier rather than a distinct, named malware family. It is typically generated automatically by antivirus engines—often via machine learning or heuristic analysis—to flag highly obfuscated executables or domains generated by a Domain Generation Algorithm (DGA) that exhibit malicious characteristics.\n\n<h3>Behavioral Analysis and Heuristic Triggers</h3>\nThe seemingly random string \"omyaamfbexii\" is characteristic of automated naming conventions used by security vendors when a file matches a behavioral profile of a trojan, but lacks a specific signature tying it to a known family (like Emotet or Trickbot). \n\nFiles flagged with this identifier frequently exhibit the following behaviors during dynamic analysis (sandboxing):\n<ul>\n<li><strong>Heavy Obfuscation:</strong> The executable is often packed using custom or commercial packers (e.g., UPX, Themida) to thwart static analysis and reverse engineering.</li>\n<li><strong>DGA Communications:</strong> The malware may attempt to resolve domain names consisting of pseudo-random character strings, indicating the use of a Domain Generation Algorithm to locate its command-and-control (C2) server.</li>\n<li><strong>Process Injection:</strong> It frequently attempts to inject malicious code into legitimate system processes (`explorer.exe`, `svchost.exe`) to hide its execution and bypass local firewalls.</li>\n</ul>\n\n<h3>Security Implications</h3>\nWhile a generic detection might seem less threatening than a named APT group, it often indicates the presence of a novel, zero-day threat, or a heavily mutated variant of existing malware. These files are typically downloaders or initial access trojans designed to pave the way for ransomware deployments.\n\n<h3>Investigation and Remediation</h3>\n<ul>\n<li><strong>File Isolation and Analysis:</strong> Immediately isolate the endpoint where the file was detected. Submit the flagged executable to an advanced malware sandbox or a malware analysis team to determine its true capabilities.</li>\n<li><strong>Network Forensics:</strong> Analyze network logs for DNS queries matching random strings, which may indicate successful DGA communication and provide IOCs (Indicators of Compromise) for blocking.</li>\n<li><strong>Comprehensive Sweeps:</strong> Utilize the IOCs gathered from dynamic analysis to sweep the entire enterprise network for lateral movement or secondary infections.</li>\n</ul>",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [
    "Generic.Omyaamfbexii",
    "Trojan.Generic",
    "DGA.Generic"
  ],
  "enrichment_level": "insufficient_information",
  "faq": [],
  "faq_count": 0,
  "mitre_attack": [
    "T1059",
    "T1568.002",
    "T1027"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-07-01T16:03:45Z",
  "type": "Trojan",
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ]
}