An¨¢lisis realizado por : Patrick Angelo Roderno   
 Alias

HEUR:Backdoor.Linux.Ganiw.d (KASPERSKY); Backdoor:Linux/Setag!rfn (MICROSOFT); Linux/Setag.B.Gen trojan (NOD32)

 Plataforma:

Linux

 Riesgo general:
 Potencial de destrucci¨®n:
 Potencial de distribuci¨®n:
 Infecci¨®n divulgada:
 Revelaci¨®n de la informaci¨®n:
Bajo
Medio
High
°ä°ù¨ª³Ù¾±³¦´Ç

  • Tipo de malware
    Backdoor

  • Destructivo?
    No

  • Cifrado
    No

  • In the Wild:
    ³§¨ª

  Resumen y descripci¨®n

Canal de infecci¨®n Descargado de Internet, Eliminado por otro tipo de malware

Ejecuta comandos desde un usuario remoto malicioso que pone en peligro el sistema afectado.

Se conecta a determinados sitios Web para enviar y recibir informaci¨®n.

  Detalles t¨¦cnicos

Tama?o del archivo 1,135,000 bytes
Tipo de archivo ELF
Residente en memoria No
Fecha de recepci¨®n de las muestras iniciales 12 Apr 2018
Carga ¨²til Drops files, Connects to URLs/IPs, Steals information

±õ²Ô²õ³Ù²¹±ô²¹³¦¾±¨®²Ô

Crea las siguientes copias de s¨ª mismo en el sistema afectado y las ejecuta:

  • /usr/bin/bsd-port/knerl

Crea las carpetas siguientes:

  • /usr/bin/dpkgd
  • /usr/bin/bsd-port

Rutina de puerta trasera

Ejecuta los comandos siguientes desde un usuario remoto malicioso:

  • Initiate DDoS attacks:
    • SYN flood
    • DNS flood
    • ICMP flood
    • UDP flood
    • TCP flood
    • TNS poisoning
    • Challenge Collapsar (CC) attack
  • Stop DDoS attack
  • Execute shell commands

Rutina de infiltraci¨®n

Infiltra los archivos siguientes:

  • /usr/bin/bsd-port/knerl.conf
  • /tmp/notify.file
  • {Malware path}/idus.log
  • {Malware Path}/vga.conf

Robo de informaci¨®n

Recopila los siguientes datos:

  • OS name
  • OS version
  • CPU clock rate
  • CPU usage
  • Number of CPU cores
  • Network usage
  • RAM size
  • IP address of infected machine

Otros detalles

Se conecta al sitio Web siguiente para enviar y recibir informaci¨®n:

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  Soluciones

Motor de exploraci¨®n m¨ªnimo 9.850
Primer archivo de patrones de VSAPI 15.236.04
Primera fecha de publicaci¨®n de patrones de VSAPI 15 de julio de 2019
Versi¨®n de patrones OPR de VSAPI 15.237.00
Fecha de publicaci¨®n de patrones OPR de VSAPI 16 de julio de 2019

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