{
  "family": "kura",
  "sample_count": 1,
  "category": "trojan",
  "description": "Backdoor:Win32/Kura is a versatile and persistent Remote Access Trojan (RAT) and botnet client. It provides an attacker with comprehensive, interactive control over a compromised Windows system. Unlike simple downloaders, Kura is designed for 'hands-on-keyboard' attacks, allowing a human operator to explore the file system, steal credentials, execute arbitrary commands, and enlist the machine into a botnet for DDoS attacks (`T1059`).<br><br><b>Understanding Kura (RAT/Botnet)</b><br>To an end-user, the infection is entirely invisible, though system performance may degrade if the botnet initiates a DDoS attack. For an incident response team, the presence of Kura indicates an active, intelligent adversary is inside the network, capable of pivoting laterally and stealing sensitive data.<br><br><b>Execution and Interactive Control Mechanics</b><br>Kura is typically delivered via spearphishing campaigns (weaponized Office documents) or dropped by initial access brokers. Upon execution, it establishes persistence, often via Registry Run keys or hidden Scheduled Tasks (`T1547.001`). It establishes a reverse shell connection to the attacker's C2 server. The Kura control panel provides the attacker with a GUI to execute a wide array of modules: file managers, registry editors, keyloggers (`T1056.001`), password dumpers (targeting browsers and FTP clients), and remote desktop capabilities. It also contains routines for launching UDP/TCP flood attacks (`T1498.001`).<br><br><b>Indicators of Compromise & Impact</b><br>The impact is total loss of system confidentiality, a high likelihood of lateral movement, and the liability of the host participating in DDoS attacks. Host-based IoCs include EDR alerts for anomalous command-line execution (e.g., `cmd.exe` or `powershell.exe` spawning from unexpected parent processes), unauthorized access to credential stores, and the creation of hidden staging directories for exfiltration. Network IoCs include a persistent, encrypted outbound connection to an unknown IP address, with traffic volume spiking during interactive sessions or DDoS floods.",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [],
  "enrichment_level": "expert-seo",
  "faq": [],
  "faq_count": 0,
  "mitre_attack": [
    "T1041",
    "T1059",
    "T1498.001",
    "T1056.001"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-06-09",
  "mitre_attack_detail": [
    {
      "id": "T1059",
      "name": "Command and Scripting Interpreter (Providing the attacker with interactive shell access)",
      "tactic": "Execution"
    },
    {
      "id": "T1056.001",
      "name": "Input Capture: Keylogging (Stealing real-time user input)",
      "tactic": "Credential Access"
    },
    {
      "id": "T1498.001",
      "name": "Network Denial of Service: Direct Network Flood (Using the host to participate in DDoS attacks)",
      "tactic": "Impact"
    },
    {
      "id": "T1041",
      "name": "Exfiltration Over C2 Channel (Stealing files directly through the RAT connection)",
      "tactic": "Exfiltration"
    }
  ],
  "containment_steps": [
    "Isolate the machine immediately to sever the attacker's interactive control and stop any ongoing DDoS participation.",
    "Assume all credentials present on the machine (saved passwords, active session tokens, domain credentials) have been compromised and force a reset.",
    "Hunt across the network for the specific C2 IP address to identify other endpoints the attacker may have pivoted to using stolen credentials.",
    "Capture a memory dump before remediation to analyze the running Kura configuration and identify any dropped secondary modules."
  ],
  "what_to_avoid": [
    "Do not assume the attack is over once the RAT is removed; the attacker likely created secondary backdoor accounts or dropped other persistence mechanisms.",
    "Avoid relying solely on static AV signatures, as botnet operators frequently pack and obfuscate their payloads to generate new hashes."
  ],
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ]
}