{
  "family": "securityshield",
  "sample_count": 1,
  "category": "trojan",
  "description": "Rogueware:Win32/Securityshield is a highly visible, classic example of a 'Fake Antivirus' program. It operates entirely on a model of deception and extortion. Masquerading as a legitimate, high-end security suite designed to protect the computer, its actual function is to generate fabricated, alarming virus detection reports to scare the user into purchasing a 'premium' software license (`T1189`).<br><br><b>Understanding Securityshield (Fake AV)</b><br>To an end-user, the software creates immense anxiety, constantly displaying pop-ups warning that the computer is infected with dozens of severe Trojans and that data loss is imminent. For an IT department, Securityshield is a nuisance that generates false helpdesk tickets. The software itself is largely useless for security, and it frequently disables legitimate security tools (`T1562.001`) to maintain its illusion.<br><br><b>Execution and Deception Mechanics</b><br>Securityshield is heavily distributed via aggressive affiliate marketing, deceptive pop-up ads claiming the user's PC is infected (drive-by downloads), or bundled with freeware. Upon execution, it performs a rapid, animated 'scan' that is guaranteed to find thousands of 'viruses' (which are usually just temporary internet files or completely benign registry entries). It establishes persistence via Scheduled Tasks (`T1053.005`) to ensure its scary warnings appear every time the computer boots. It often disables the Windows Task Manager and legitimate AV services.<br><br><b>Indicators of Compromise & Impact</b><br>The primary impact is financial fraud (tricking the user into paying) and psychological manipulation. Host-based IoCs include the highly visible Securityshield GUI, unexpected Scheduled Tasks, and unauthorized modifications to system policies restricting access to administrative tools. Network IoCs include constant connections to the software vendor's payment gateways.",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [],
  "enrichment_level": "expert-seo",
  "faq": [],
  "faq_count": 0,
  "mitre_attack": [
    "T1562.001",
    "T1053.005",
    "T1189"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-06-09",
  "mitre_attack_detail": [
    {
      "id": "T1189",
      "name": "Drive-by Compromise (Distribution via deceptive pop-up ads and bundles)",
      "tactic": "Initial Access"
    },
    {
      "id": "T1053.005",
      "name": "Scheduled Task/Job: Scheduled Task (Ensuring the fake scanner runs constantly)",
      "tactic": "Persistence"
    },
    {
      "id": "T1562.001",
      "name": "Impair Defenses: Disable or Modify Tools (Disabling taskmgr and real AV to prevent termination)",
      "tactic": "Defense Evasion"
    }
  ],
  "containment_steps": [
    "Boot the system into Safe Mode to prevent the Securityshield scheduled tasks from executing and blocking removal tools.",
    "Use the standard Windows 'Programs and Features' control panel to attempt a clean uninstall of the rogue software.",
    "Run a comprehensive scan with a reputable Adware/Malware removal tool (like Malwarebytes) to clean up residual registry keys.",
    "Educate users that legitimate system alerts come from the Action Center/Windows Defender, not flashing, full-screen pop-ups."
  ],
  "what_to_avoid": [
    "Under no circumstances should you enter credit card information or pay for the 'premium' version; this will not fix the computer.",
    "Avoid using random 'PC Repair' tools found via web searches to remove Securityshield, as they are often just different strains of the same rogueware."
  ],
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ]
}