{
  "family": "allinonekeylogger",
  "sample_count": 3,
  "category": "infostealer",
  "description": "Allinonekeylogger (classified in antivirus detection telemetry under designations including PWS:Win32/Allinonekeylogger, PWS.Win32.Allinonekeylogger, and Win32/Allinonekeylogger) is a dedicated information theft malware engineered to harvest stored credentials, browser session cookies, cryptocurrency wallets, and keystrokes. Disseminated across enterprise networks and consumer workstations via social engineering, phishing attachments, malicious drive-by downloads, or weaponized software cracks, Allinonekeylogger executes an initial reconnaissance phase upon system ingress. The binary evaluates host privileges, detects active hypervisors and sandbox environments to evade behavioral analysis, and establishes resilient autostart persistence by configuring registry keys under HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run or registering background Windows services. Operational mechanics characteristic of this family include credential database extraction, API hooking, system discovery, and encrypted C2 exfiltration. Outbound communication is established with remote threat actor infrastructure to beacon operational status and receive tasking, posing significant security risks to data integrity and host availability.",
  "cta": "Published by the SystemHelpdesk Threat Intelligence Team.",
  "aliases": [
    "PWS:Win32/Allinonekeylogger",
    "PWS.Win32.Allinonekeylogger",
    "Win32/Allinonekeylogger"
  ],
  "enrichment_level": "curated_sourced",
  "faq": [
    {
      "@type": "Question",
      "name": "What is PWS:Win32/Allinonekeylogger?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Allinonekeylogger is a infostealer threat designed to infiltrate Windows systems and execute unauthorized operations without user consent."
      }
    },
    {
      "@type": "Question",
      "name": "How does Allinonekeylogger compromise target systems?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "It commonly infiltrates systems via phishing emails, trojanized software installers, exploit kits, or unpatched vulnerabilities."
      }
    },
    {
      "@type": "Question",
      "name": "What persistence mechanisms does Allinonekeylogger utilize?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "It typically creates autostart entries in the Windows Registry (HKCU/HKLM Run keys), registers scheduled tasks, or installs hidden background services."
      }
    },
    {
      "@type": "Question",
      "name": "What risks does Allinonekeylogger pose to an enterprise?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "It can lead to credential theft, system manipulation, unauthorized remote access, data loss, or secondary malware delivery."
      }
    },
    {
      "@type": "Question",
      "name": "How can administrators detect and eliminate Allinonekeylogger?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Deploy modern EDR solutions with updated behavioral signatures, isolate infected endpoints, audit autostart persistence entries, and conduct full antimalware scans."
      }
    }
  ],
  "faq_count": 5,
  "mitre_attack": [
    "T1555",
    "T1056.001",
    "T1114",
    "T1041",
    "T1082"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-10-15",
  "mitre_attack_detail": [
    {
      "id": "T1056.001",
      "name": "Input Capture: Keylogging",
      "tactic": "Collection"
    },
    {
      "id": "T1113",
      "name": "Screen Capture",
      "tactic": "Collection"
    },
    {
      "id": "T1115",
      "name": "Clipboard Data",
      "tactic": "Collection"
    },
    {
      "id": "T1048.003",
      "name": "Exfiltration Over Alternative Protocol (Exfiltration via SMTP/Email)",
      "tactic": "Exfiltration"
    },
    {
      "id": "T1543.003",
      "name": "Create or Modify System Process: Windows Service",
      "tactic": "Persistence"
    }
  ],
  "containment_steps": [
    "Immediately isolate the infected endpoint from the network to halt the exfiltration of the recorded logs and screenshots.",
    "Assume all credentials, emails, and sensitive documents accessed on the compromised machine have been compromised. Initiate an enterprise-wide password reset for the affected user.",
    "Preserve the system state (RAM dump) to analyze the running spyware process and locate the local staging directory where it stores its encrypted logs before exfiltration.",
    "Conduct an HR or Insider Threat investigation to determine who had physical or logical access to install the commercial software."
  ],
  "what_to_avoid": [
    "Do not allow the user to change their passwords *from the infected machine*; the spyware will simply record the new credentials.",
    "Avoid closing the incident simply by uninstalling the software; ensure a full investigation determines exactly what data was lost and who installed the tool."
  ],
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ],
  "attack_stage": [
    "execution",
    "persistence"
  ],
  "ecosystem": [
    "windows_pe"
  ],
  "is_emerging": false,
  "sources": [
    {
      "name": "Microsoft Defender Threat Encyclopedia - PWS:Win32/Allinonekeylogger",
      "url": "https://www.microsoft.com/en-us/wdsi/threats/malware-encyclopedia-description?Name=PWS:Win32/Allinonekeylogger"
    },
    {
      "name": "Kaspersky Threat Intelligence - PWS.Win32.Allinonekeylogger",
      "url": "https://threats.kaspersky.com/en/threat/"
    },
    {
      "name": "MITRE ATT&CK - Enterprise Techniques",
      "url": "https://attack.mitre.org/techniques/T1555/"
    }
  ],
  "target_platforms": [
    "Windows 11",
    "Windows 10",
    "Windows Server 2022",
    "Windows Server 2019"
  ]
}