Author: Karen Ivy Titiwa   
 

Trojan:Win32/Qakbot!MTB(MICROSOFT); RDN/Qakbot(NAI)

 PLATFORM:

Windows

 OVER ALL RISK RATING:
 DAMAGE POTENTIAL::
 DISTRIBUTION POTENTIAL::
 REPORTED INFECTION:
 INFORMATION EXPOSURE:
Low
Medium
High
Critical

  • Threat Type:
    Trojan Spy

  • Destructiveness:
    No

  • Encrypted:
     

  • In the wild::
    Yes

  OVERVIEW

INFECTION CHANNEL: Descargado de Internet

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

  TECHNICAL DETAILS

File size: 201,216 bytes
File type: DLL
Memory resident: Yes
INITIAL SAMPLES RECEIVED DATE: 04 февраля 2021
PAYLOAD: Connects to URLs/IPs

Detalles de entrada

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Instalación

Agrega los procesos siguientes:

  • %Windows%\explorer.exe (%System%\mobsync.exe or %Program Files%\Internet Explorer\iexplore.exe if not found)
  • %System%\schtasks.exe /Create /RU "NT AUTHORITY\SYSTEM" /tn {Random characters} /tr "regsvr32.exe -s \"{Malware File Path}\{Malware File Name}.dll\"" /SC ONCE /Z /ST {Time} /ET {Time}
  • whoami /all
  • cmd /c set
  • arp -a
  • ipconfig /all
  • net view /all
  • nslookup -querytype=ALL -timeout=10 _ldap._tcp.dc._msdcs.WORKGROUP
  • nltest /domain_trusts /all_trusts
  • net share
  • %System%\net1 share
  • route print
  • netstat -nao
  • net localgroup
  • %System%\net1 localgroup
  • qwinsta

(Nota: %Program Files% es la carpeta Archivos de programa predeterminada, que suele estar en C:\Archivos de programa).

)

Se introduce en los siguientes procesos que se ejecutan en la memoria del sistema afectado:

  • %System Root%\explorer.exe
  • %Program Files%\Internet Explorer\iexplore.exe

(Nota: %System Root% es la carpeta raíz, normalmente C:\. También es la ubicación del sistema operativo).

. %Program Files% es la carpeta Archivos de programa predeterminada, que suele estar en C:\Archivos de programa).

)

Robo de información

Tras la ejecución de la aplicación afectada, recopila la siguiente información:

  • Hardware information
  • Operating system information
  • Processor information
  • Installed antivirus products
  • Running processes
  • Computer name
  • User name
  • IP address

Información sustraída

Este malware envía la información recopilada a la siguiente URL a través de HTTP POST:

  • {BLOCKED}.{BLOCKED}.236.101:443
  • {BLOCKED}.{BLOCKED}.236.99:443
  • {BLOCKED}.{BLOCKED}.208.140:443
  • {BLOCKED}.{BLOCKED}.150.98:443
  • {BLOCKED}.{BLOCKED}.52.111:443
  • {BLOCKED}.{BLOCKED}.123.244:443
  • {BLOCKED}.{BLOCKED}.4:995
  • {BLOCKED}.{BLOCKED}.101.62:443
  • {BLOCKED}.{BLOCKED}.49.12:443
  • {BLOCKED}.{BLOCKED}.227.86:443
  • {BLOCKED}.{BLOCKED}.38.185:2222
  • {BLOCKED}.{BLOCKED}.38.185:443
  • {BLOCKED}.{BLOCKED}.38.185:995
  • {BLOCKED}.{BLOCKED}.101.90:2222
  • {BLOCKED}.{BLOCKED}.101.90:443
  • {BLOCKED}.{BLOCKED}.101.90:8443
  • {BLOCKED}.{BLOCKED}.101.90:995
  • {BLOCKED}.{BLOCKED}.98.196:2222
  • {BLOCKED}.{BLOCKED}.98.196:443
  • {BLOCKED}.{BLOCKED}.98.196:995
  • {BLOCKED}.{BLOCKED}.99.97:2222
  • {BLOCKED}.{BLOCKED}.99.97:443
  • {BLOCKED}.{BLOCKED}.99.97:995
  • {BLOCKED}.{BLOCKED}..102.42:443
  • {BLOCKED}.{BLOCKED}.82.200:443
  • {BLOCKED}.{BLOCKED}.30.215:443
  • {BLOCKED}.{BLOCKED}.157.235:3389
  • {BLOCKED}.{BLOCKED}.10.71:2222
  • {BLOCKED}.{BLOCKED}.165.101:995
  • {BLOCKED}.{BLOCKED}.70.12:995
  • {BLOCKED}.{BLOCKED}.161.85:443
  • {BLOCKED}.{BLOCKED}.14.130:22
  • {BLOCKED}.{BLOCKED}.122.72:443
  • {BLOCKED}.{BLOCKED}.151.167:443
  • {BLOCKED}.{BLOCKED}.128.253:443
  • {BLOCKED}.{BLOCKED}.63.105:443
  • {BLOCKED}.{BLOCKED}.115.207:443
  • {BLOCKED}.{BLOCKED}.7.9:443
  • {BLOCKED}.{BLOCKED}.91.154:443
  • {BLOCKED}.{BLOCKED}.221.184:2222
  • {BLOCKED}.{BLOCKED}.252.84:443
  • {BLOCKED}.{BLOCKED}..154.132:443
  • {BLOCKED}.{BLOCKED}.110.165:995
  • {BLOCKED}.{BLOCKED}.216:443
  • {BLOCKED}.{BLOCKED}.217:2222
  • {BLOCKED}.{BLOCKED}.5.175:443
  • {BLOCKED}.{BLOCKED}.95.254:443
  • {BLOCKED}.{BLOCKED}.210.27:443
  • {BLOCKED}.{BLOCKED}.138.162:443
  • {BLOCKED}.{BLOCKED}.195.67:443
  • {BLOCKED}.{BLOCKED}.116.237:2222
  • {BLOCKED}.{BLOCKED}.116.237:443
  • {BLOCKED}.{BLOCKED}.116.237:8443
  • {BLOCKED}.{BLOCKED}.116.237:995
  • {BLOCKED}.{BLOCKED}.77.75:2222
  • {BLOCKED}.{BLOCKED}.77.75:443
  • {BLOCKED}.{BLOCKED}.77.75:8443
  • {BLOCKED}.{BLOCKED}.77.75:995
  • {BLOCKED}.{BLOCKED}.187.52:443
  • {BLOCKED}.{BLOCKED}.162.158:443
  • {BLOCKED}.{BLOCKED}.54.140:32100
  • {BLOCKED}.{BLOCKED}.219.253:995
  • {BLOCKED}.{BLOCKED}.61.153:2078
  • {BLOCKED}.{BLOCKED}.2.216:2222
  • {BLOCKED}.{BLOCKED}.2.218:993
  • {BLOCKED}.{BLOCKED}.92.142:995
  • {BLOCKED}.{BLOCKED}.69.207:443
  • {BLOCKED}.{BLOCKED}.66:995
  • {BLOCKED}.{BLOCKED}.16.179:443
  • {BLOCKED}.{BLOCKED}.54:443
  • {BLOCKED}.{BLOCKED}.11.207:2222
  • {BLOCKED}.{BLOCKED}.11.207:443
  • {BLOCKED}.{BLOCKED}.11.207:8443
  • {BLOCKED}.{BLOCKED}.11.207:995
  • {BLOCKED}.{BLOCKED}.3.140:2222
  • {BLOCKED}.{BLOCKED}.07.192:2222
  • {BLOCKED}.{BLOCKED}.07.192:443
  • {BLOCKED}.{BLOCKED}.07.192:995
  • {BLOCKED}.{BLOCKED}.15.208:2222
  • {BLOCKED}.{BLOCKED}.15.208:443
  • {BLOCKED}.{BLOCKED}.15.208:8443
  • {BLOCKED}.{BLOCKED}.15.208:995
  • {BLOCKED}.{BLOCKED}.36.53:995
  • {BLOCKED}.{BLOCKED}.169.85:443
  • {BLOCKED}.{BLOCKED}.8.187:443
  • {BLOCKED}.{BLOCKED}.48.6:443
  • {BLOCKED}.{BLOCKED}.112.106:443
  • {BLOCKED}.{BLOCKED}.66.232:995
  • {BLOCKED}.{BLOCKED}.8.164:2222
  • {BLOCKED}.{BLOCKED}.114.87:443
  • {BLOCKED}.{BLOCKED}.206.193:993
  • {BLOCKED}.{BLOCKED}..75:443
  • {BLOCKED}.{BLOCKED}.192.69:443
  • {BLOCKED}.{BLOCKED}.60.77:995
  • {BLOCKED}.{BLOCKED}.179.70:443
  • {BLOCKED}.{BLOCKED}.39.10:443
  • {BLOCKED}.{BLOCKED}.130.172:995
  • {BLOCKED}.{BLOCKED}.132.169:443
  • {BLOCKED}.{BLOCKED}.10.199:443
  • {BLOCKED}.{BLOCKED}.142.63:443
  • {BLOCKED}.{BLOCKED}.170.235:443
  • {BLOCKED}.{BLOCKED}.126.250:443
  • {BLOCKED}.{BLOCKED}.2.34:443
  • {BLOCKED}.{BLOCKED}.242.138:443
  • {BLOCKED}.{BLOCKED}.200.181:2222
  • {BLOCKED}.{BLOCKED}.201.69:443
  • {BLOCKED}.{BLOCKED}.44.202:443
  • {BLOCKED}.{BLOCKED}.37.11:443
  • {BLOCKED}.{BLOCKED}.26.147:443
  • {BLOCKED}.{BLOCKED}.40.155:443
  • {BLOCKED}.{BLOCKED}.92.125:443
  • {BLOCKED}.{BLOCKED}.128.194:443
  • {BLOCKED}.{BLOCKED}.42.196:443
  • {BLOCKED}.{BLOCKED}.00.148:995
  • {BLOCKED}.{BLOCKED}.74.49:995
  • {BLOCKED}.{BLOCKED}.26.32:443
  • {BLOCKED}.{BLOCKED}.68.18:443
  • {BLOCKED}.{BLOCKED}.07.104:443
  • {BLOCKED}.{BLOCKED}.121.81:995
  • {BLOCKED}.{BLOCKED}.252.62:2222
  • {BLOCKED}.{BLOCKED}.85.24:2222
  • {BLOCKED}.{BLOCKED}.5.70:443
  • {BLOCKED}.{BLOCKED}.9.64:995
  • {BLOCKED}.{BLOCKED}.54.62:443
  • {BLOCKED}.{BLOCKED}.54.100:443
  • {BLOCKED}.{BLOCKED}.7.211:443
  • {BLOCKED}.{BLOCKED}.108.181:2222
  • {BLOCKED}.{BLOCKED}.12.140:2222
  • {BLOCKED}.{BLOCKED}.248.121:995
  • {BLOCKED}.{BLOCKED}.252.202:2222
  • {BLOCKED}.{BLOCKED}.5.226:443
  • {BLOCKED}.{BLOCKED}.36.111:2222
  • {BLOCKED}.{BLOCKED}.93.144:443
  • {BLOCKED}.{BLOCKED}.60.133:2222
  • {BLOCKED}.{BLOCKED}.77.68:2222
  • {BLOCKED}.{BLOCKED}.3.124:2078
  • {BLOCKED}.{BLOCKED}.91.244:443
  • {BLOCKED}.{BLOCKED}.211.239:995
  • {BLOCKED}.{BLOCKED}.8.238:443
  • {BLOCKED}.{BLOCKED}.88.99:2222
  • {BLOCKED}.{BLOCKED}.5.196:2222
  • {BLOCKED}.{BLOCKED}.2.42:443
  • {BLOCKED}.{BLOCKED}.7.6:443
  • {BLOCKED}.{BLOCKED}.23.148:443
  • {BLOCKED}.{BLOCKED}.17.140:443
  • {BLOCKED}.{BLOCKED}.127.13:995
  • {BLOCKED}.{BLOCKED}.13.36:993
  • {BLOCKED}.{BLOCKED}.60.4:2222
  • {BLOCKED}.{BLOCKED}.21.115:443
  • {BLOCKED}.{BLOCKED}.187.78:443

Otros detalles

Hace lo siguiente:

  • It attempts to create a pipe for communication.
  • It checks the presence of the following Anti-Virus and Security Applications:
    • ccSvcHst.exe
    • avgcsrvx.exe
    • avgsvcx.exe
    • avgcsrva.exe
    • MsMpEng.exe
    • mcshield.exe
    • avp.exe
    • kavtray.exe
    • egui.exe
    • ekrn.exe
    • bdagent.exe
    • vsserv.exe
    • vsservppl.exe
    • AvastSvc.exe
    • coreServiceShell.exe
    • PccNTMon.exe
    • NTRTScan.exe
    • SAVAdminService.exe
    • SavService.exe
    • fshoster32.exe
    • WRSA.exe
    • vkise.exe
    • isesrv.exe
    • cmdagent.exe
    • ByteFence.exe
    • MBAMService.exe
    • mbamgui.exe
    • fmon.exe
  • It checks for the following strings in its filename:
    • artifact.exe
    • mlwr_smpl
    • sample
    • sandbox
    • cuckoo-
    • virus
  • It checks for the following processes in the affected system's memory:
    • srvpost.exe
    • frida-winjector-helper-32.exe
    • frida-winjector-helper-64.exe
  • It terminates itself when executed in the following Virtual Environments:
    • A3E64E55_pr
    • VBoxVideo
    • Red Hat VirtIO
    • QEMU
    • VIRTUAL-PC
    • Virtual

  SOLUTION

Minimum scan engine: 9.800
First VSAPI Pattern File: 16.582.05
First VSAPI Pattern Release Date: 08 de марта de 2021
VSAPI OPR PATTERN-VERSION: 16.583.00
VSAPI OPR PATTERN DATE: 09 de марта de 2021

Step 2

Los usuarios de Windows ME y XP, antes de llevar a cabo cualquier exploración, deben comprobar que tienen desactivada la opción Restaurar sistema para permitir la exploración completa del equipo.

Step 3

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 4

Reiniciar en modo seguro

[ learnMore ]

Step 5

Deleting Scheduled Tasks

The following {Task Name} - {Task to be run} listed should be used in the steps identified below:

  • Task name: {Random characters}
    Action: Start a program: {Malware File Path}\{Malware File Name}.dll

For Windows 2000, Windows XP, and Windows Server 2003:

  1. Open the Windows Scheduled Tasks. Click Start>Programs>Accessories>
    System Tools>Scheduled Tasks.
  2. Locate each {Task Name} values listed above in the Name column.
  3. Right-click on the said file(s) with the aforementioned value.
  4. Click on Properties. In the Run field, check for the listed {Task to be run}.
  5. If the strings match the list above, delete the task.

For Windows Vista, Windows 7, Windows Server 2008, Windows 8, Windows 8.1, and Windows Server 2012:

  1. Open the Windows Task Scheduler. To do this:
    • On Windows Vista, Windows 7, and Windows Server 2008, click Start, type taskschd.msc in the Search input field, then press Enter.
    • On Windows 8, Windows 8.1, and Windows Server 2012, right-click on the lower left corner of the screen, click Run, type taskschd.msc, then press Enter.
  2. In the left panel, click Task Scheduler Library.
  3. In the upper-middle panel, locate each {Task Name} values listed above in the Name column.
  4. In the lower-middle panel, click the Actions tab. In the Details column, check for the {Task to be run} string.
  5. If the said string is found, delete the task.

Step 6

Reinicie en modo normal y explore el equipo con su producto de Trend Micro para buscar los archivos identificados como TrojanSpy.Win32.QAKBOT.THBOCBA En caso de que el producto de Trend Micro ya haya limpiado, eliminado o puesto en cuarentena los archivos detectados, no serán necesarios más pasos. Puede optar simplemente por eliminar los archivos en cuarentena. Consulte esta página de Base de conocimientos para obtener más información.


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