Ransom.Win32.NOKO.THDABBC

它以其他恶意软件释放的文件或用户访问恶意网站时不知不觉下载的文件的形式到达系统。

新病毒详细信息

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

安装

它添加下列进程：

• if --safe-mode commandline parameter is used:
  • "%System%\bcdedit.exe" /set {default} safeboot network
  • "%System%\shutdown.exe" -r

(注意: %System% 是 Windows 的 system 文件夹，通常位于 C:\Windows\System (Windows 98 和 ME)、C:\WINNT\System32 (Windows NT 和 2000) 和 C:\WINDOWS\system32 (Windows 2000(32-bit)、XP、Server 2003(32-bit)、Vista、7、8、8.1、2008(64-bit),2012(64bit) 和 10(64-bit))。)

自启动技术

它通过添加下列注册表项，注册为系统服务，确保在每次系统启动时自动执行：

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Control\SafeBoot\Network\
nokonoko → if --safe-mode commandline parameter is used.

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\nokonoko → if --safe-mode commandline parameter is used.

其他系统修改

它修改下列注册表项：

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Control\SafeBoot\Network\
nokonoko → if --safe-mode commandline parameter is used.
(Default) = Service

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Control → if --safe-mode commandline parameter is used.
ServicesPipeTimeout = 86400000

其他详细信息

该程序执行以下操作：

• It encrypts files found in the following drives:
  • Fixed Drives
  • Removable Drives
  • Remote (Network) Drives
• The following can be changed in the runtime configuration:
  • Directories to avoid
  • File extensions to avoid
  • Ransom note content
  • Ransom note filename
  • Appended extension of encrypted files
  The following can be enabled/disabled in the runtime configuration:
  • Encryption of network shares
  • Delete shadow copies
  • Loading of hidden drives
• It shows the following message box when the --config argument is improperly encoded:
  
• It adds the following service if --safe-mode commandline parameter is used:
  Service Name: nokonoko
  Display Name: shmokoshmoko
  Path to exectuable: {Malware File Path}\{Malware File Name}.exe --config {Base64 encoded config}
  Start Type: Auto start