{
  "family": "uiwaowr6xsaje",
  "sample_count": 1,
  "category": "ransomware",
  "description": "<h3>Executive Summary</h3>\n\"Uiwaowr6xsaje\" is a heuristic identifier for a highly obfuscated, generically detected Trojan or Dropper. The random, DGA-like (Domain Generation Algorithm) naming convention strongly suggests that this malware was generated dynamically by an automated exploit kit or malware builder to evade static antivirus signatures through constant polymorphic mutation.\n\n<h3>Infection Vector and Technical Capabilities</h3>\nMalware utilizing these randomized naming conventions is typically distributed \"filelessly\" via drive-by downloads originating from compromised websites (exploit kits) or as a secondary payload dropped by an initial access broker.\n\nUpon execution, this class of malware prioritizes rapid evasion and payload execution:\n<ul>\n<li><strong>Heavy Obfuscation and Packing:</strong> The executable is heavily packed, encrypted, or virtualized. This prevents security researchers and standard antivirus engines from analyzing its true code until it is unpacked in memory.</li>\n<li><strong>Process Injection:</strong> Rather than executing directly, the malware frequently utilizes Process Hollowing or DLL Injection to insert its malicious code into a legitimate Windows process (e.g., `explorer.exe` or `svchost.exe`). This allows it to bypass application whitelisting and hide its activity from the Task Manager.</li>\n<li><strong>Secondary Payload Delivery:</strong> Uiwaowr6xsaje typically functions as a loader. Once persistence and stealth are achieved, it communicates with a C2 server to download the primary payload, which could be anything from a cryptominer to ransomware.</li>\n</ul>\n\n<h3>Threat Assessment</h3>\nDetection of highly obfuscated, randomly named files in critical system directories (like `%AppData%` or `%Temp%`) is a severe indicator of compromise (IoC). It almost guarantees that an advanced threat actor has bypassed initial perimeter defenses and achieved code execution on the endpoint.\n\n<h3>Remediation and Eradication</h3>\n<ul>\n<li><strong>Behavioral Analysis (EDR):</strong> Static signature-based AV is largely ineffective against polymorphic threats. Eradication requires an Endpoint Detection and Response (EDR) solution capable of monitoring and terminating processes based on malicious behavior.</li>\n<li><strong>Network Isolation:</strong> Isolate the machine immediately to prevent the malware from phoning home to its C2 infrastructure or pivoting laterally across the network.</li>\n<li><strong>Complete Re-imaging:</strong> Due to the sophisticated evasion techniques employed, attempting to manually \"clean\" the system is highly risky. The most secure remediation is a complete bare-metal wipe and re-image from a trusted backup.</li>\n</ul>",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [
    "Trojan.Generic.Uiwaowr6xsaje",
    "Malware.Obfuscated",
    "Win32/Trojan.Heur"
  ],
  "enrichment_level": "expert-seo",
  "faq": [
    {
      "@type": "Question",
      "name": "What is Uiwaowr6Xsaje and what threat category does it belong to?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Uiwaowr6Xsaje is classified as a Ransomware. 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 Uiwaowr6Xsaje establish persistence and evade defensive controls?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Uiwaowr6Xsaje 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 Uiwaowr6Xsaje compromise?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Security teams responding to Uiwaowr6Xsaje 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 cryptographic algorithms and file targeting techniques does Trojan.Generic.Uiwaowr6xsaje employ during execution?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Trojan.Generic.Uiwaowr6xsaje typically leverages hybrid cryptographic architectures combining symmetric stream or block ciphers (such as AES-256 or ChaCha20) for rapid file encryption with asymmetric algorithms (such as RSA-2048 or Curve25519) to securely protect the session keys. It aggressively targets sensitive file extensions including corporate documents, databases, virtual disks, and backups while systematically executing commands to delete Volume Shadow Copies (vssadmin delete shadows /all /quiet) and disable system recovery options."
      }
    },
    {
      "@type": "Question",
      "name": "Are decryptors available for Trojan.Generic.Uiwaowr6xsaje, and what is the recommended recovery procedure?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Decryption availability for Trojan.Generic.Uiwaowr6xsaje depends on whether security researchers or law enforcement (such as the No More Ransom initiative) have recovered the master private keys or discovered flaws in its key generation routines. Victims should never pay the extortion demand, as payment fuels criminal operations without guaranteeing file restoration. The recommended recovery procedure entails isolating infected hosts, conducting forensic disk imaging, identifying the root access vector, and restoring validated systems from immutable offline backups."
      }
    }
  ],
  "faq_count": 5,
  "mitre_attack": [
    "T1027.002",
    "T1055",
    "T1105",
    "T1106"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-10-15",
  "type": "Trojan (Obfuscated)",
  "target_industries": [
    "Healthcare",
    "Critical Infrastructure",
    "Enterprise"
  ],
  "motivation": "Financial Extortion",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ],
  "attack_stage": [
    "defense_evasion",
    "impact"
  ],
  "ecosystem": [
    "windows_pe"
  ],
  "is_emerging": false,
  "mitre_attack_detail": [
    {
      "id": "T1027.002",
      "name": "Obfuscated Files or Information: Software Packing",
      "tactic": "Defense Evasion"
    },
    {
      "id": "T1055",
      "name": "Process Injection",
      "tactic": "Defense Evasion"
    },
    {
      "id": "T1105",
      "name": "Ingress Tool Transfer",
      "tactic": "Command and Control"
    },
    {
      "id": "T1106",
      "name": "Native API",
      "tactic": "Execution"
    }
  ],
  "containment_steps": [
    "Immediately isolate affected host(s) from the internal network (disconnect physical Ethernet and disable Wi-Fi/Bluetooth) to prevent Uiwaowr6Xsaje from spreading laterally or encrypting network-attached storage (NAS) and shared SMB volumes.",
    "Preserve volatile system memory (RAM capture) on a representative endpoint before attempting a reboot or power-down, as Uiwaowr6Xsaje symmetric encryption keys or uncompiled payload components may still reside in memory.",
    "Audit process execution logs and terminate active scripting interpreters (e.g. PowerShell, CMD, WScript) or commands executing 'vssadmin.exe delete shadows' or 'wbadmin' used by Uiwaowr6Xsaje to inhibit recovery.",
    "Investigate the initial compromise vector (such as exposed RDP instances, spearphishing attachments, or vulnerable edge gateways) and enforce an immediate credential reset for all compromised Active Directory accounts.",
    "Restore critical assets and databases exclusively from verified, air-gapped, or immutable offline backups once the Uiwaowr6Xsaje binary and related persistence hooks are eradicated."
  ],
  "what_to_avoid": [
    "Do not restart or power cycle infected systems prematurely; doing so destroys volatile RAM encryption keys and may trigger bootloader locking logic embedded in Uiwaowr6Xsaje.",
    "Avoid negotiating or paying the extortion demand without prior forensic evaluation and consultation with incident response specialists, as payment does not guarantee data recovery.",
    "Do not connect clean backup drives or external storage to the affected network until Uiwaowr6Xsaje eradication is completely verified."
  ],
  "target_platforms": [
    "Windows 11",
    "Windows 10",
    "Windows Server 2022",
    "Windows Server 2019"
  ]
}