{
  "family": "beyondkeylogger",
  "sample_count": 8,
  "category": "advanced_threat",
  "description": "Spyware:Win32/Beyondkeylogger is a commercial, off-the-shelf surveillance software explicitly designed to monitor and record all user activity on a compromised endpoint. While marketed to suspicious spouses or overzealous employers as 'employee monitoring' software, its stealth capabilities and ability to exfiltrate highly sensitive data (passwords, corporate communications, banking details) make it a severe security threat when deployed without authorization by malicious actors.<br><br><b>Understanding Beyondkeylogger</b><br>To an end-user, a Beyondkeylogger infection is entirely invisible. The software operates deep in the background, specifically designed to hide from the Task Manager, system tray, and add/remove programs list. For a security analyst, discovering a commercial keylogger on a corporate endpoint indicates a critical breach of privacy and a highly likely compromise of all credentials entered on that machine.<br><br><b>Execution and Surveillance Mechanics</b><br>Beyondkeylogger is typically installed via physical access (`T1091`) by an insider threat, or delivered via spearphishing (`T1566.001`) bundled with an exploit. Once executed (`T1204.002`), it establishes deep persistence, often by creating a hidden Windows Service (`T1543.003`) or manipulating the Winlogon registry keys (`T1547.004`) to ensure it starts before the user even logs in. Its primary function is collection: it utilizes Windows API hooks (like `SetWindowsHookEx`) to log every keystroke (`T1056.001`), takes periodic hidden screenshots of the desktop (`T1113`), and captures clipboard data (`T1115`). The harvested data is then encrypted and silently emailed to the attacker (`T1048.003`) or uploaded to a remote FTP server (`T1041`).<br><br><b>Indicators of Compromise & Impact</b><br>The primary impact is the catastrophic loss of confidentiality and credential compromise. EDR logs are critical for detecting this threat, specifically looking for processes injecting into `explorer.exe` or hooking the keyboard APIs. Network analysts should look for unauthorized, recurring outbound SMTP (email) or FTP traffic originating from the endpoint. Host-based IoCs include the presence of hidden, encrypted log files (often with extensions like `.dat` or `.log`) buried deeply in the `%AppData%` or `%ProgramData%` directories.",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [],
  "enrichment_level": "expert-seo",
  "faq": [],
  "faq_count": 0,
  "mitre_attack": [
    "T1056.001",
    "T1115",
    "T1048.003",
    "T1113"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-06-09",
  "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 Email/SMTP)",
      "tactic": "Exfiltration"
    }
  ],
  "containment_steps": [
    "Instantly isolate the endpoint to halt the exfiltration of the captured keystrokes and screenshots.",
    "Enforce a mandatory, immediate password reset for *every* account the user has accessed from that machine, prioritizing domain credentials and VPN access.",
    "Do not simply delete the executable; commercial keyloggers often use rootkit-like techniques to hide. Use an enterprise EDR solution to forcefully terminate the hooking service and clean the registry.",
    "Perform a forensic review to determine how the software was installed (checking for unauthorized physical access or phishing vectors)."
  ],
  "what_to_avoid": [
    "Do not assume only the local user's data was compromised; if an administrator logged into the infected machine, their credentials were also logged.",
    "Avoid leaving the endpoint on the network while investigating, as the keylogger will continue to transmit data in real-time."
  ],
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ]
}