Ransom.Win32.NOGARDFORCE.THDABBD

它以文件的形式出现在系统中，可能是其他恶意软件投放的，或者是用户在访问恶意网站时无意中下载的。

新病毒详细信息

它以文件的形式出现在系统中，可能是其他恶意软件投放的，或者是用户在访问恶意网站时无意中下载的。

安装

它植入下列文件：

• %ProgramData%\AoV0pni2N.ico → icon used for all encrypted files.

它添加下列互斥条目，确保一次只会运行一个副本：

• Global\{Generated Hash}

自启动技术

它添加下列注册表项，在系统每次启动时自行执行：

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\RunOnce
{Random Characters} = {Malware Path}\{Malware File Name} → if -safe commandline parameter is used

其他系统修改

它添加下列注册表项作为安装例程的一部分：

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
AoV0pni2N\DefaultIcon
(Default) = %ProgramData%\AoV0pni2N.ico

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
.AoV0pni2N
(Default) = AoV0pni2N

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
.AoV0pni2N
hscreen = {screen height} → if -safe commandline parameter is used

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
.AoV0pni2N
wScreen = {screen width} → if -safe commandline parameter is used

它修改下列注册表项：

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Winlogon
AutoAdminLogon = 1 → if -safe commandline parameter is used

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Winlogon
DefaultUserName = Administrator → if -safe commandline parameter is used

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Winlogon
DefaultDomainName = {Computer Domain Name} → if -safe commandline parameter is used

进程终止

它终止在受感染的系统上运行的下列服务：

• vss
• sql
• svc$
• memtas
• mepocs
• msexchange
• sophos
• veeam
• backup
• GxVss
• GxBlr
• GxFWD
• GxCVD
• GxCIMgr

它终止在受感染的系统内存中运行的下列进程：

• sql
• oracle
• ocssd
• dbsnmp
• synctime
• agntsvc
• synctime
• isqlplussvc
• xfssvccon
• mydesktopservice
• ocautonupds
• encsvc
• firefox
• tbirdconfig
• mydesktopqos
• ocomm
• dbeng50
• sqbcoreservice
• excel
• infopath
• msaccess
• mspub
• onenote
• outlook
• powerpnt
• steam
• thebat
• thunderbird
• visio winword
• wordpad
• notepad
• calc
• wuauclt
• Onedrive

信息窃取

它收集下列数据:

• Hostname
• Username
• OS version
• Domain
• Architecture
• Language

其他详细信息

它添加下列注册表键值:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
.AoV0pni2N

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
AoV0pni2N

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
AoV0pni2N\DefaultIcon

该程序执行以下操作：

• If not executed with admin rights, it will attempt to relaunch itself as admin by elevating its privileges via bypassing UAC
• It encrypts fixed, removable and network shares
• It deletes files in recycle bin folder for removable and fixed drives
• 它使用 WQL 来删除快照副本
• It renames itself 26 times before deleting itself after encryption
• It has the capability to print the ransom note in infected machines
• It terminates if the machine has the following system language:
  • Arabic (Syria)
  • Armenian
  • Azerbaijani (Cyrillic)
  • Azerbaijani (Latin)
  • Belarusian
  • Georgian
  • Kazakh
  • Kyrgyz (Cyrillic)
  • Romanian (Moldova)
  • Russian
  • Russian (Moldova)
  • Tajik
  • Tatar
  • Turkmen
  • Ukrainian
  • Uzbek (Cyrillic)
  • Uzbek (Latin)
• It deletes the following services:
  • WdBoot
  • WdFilter
  • WdNisDrv
  • WdNisSvc
  • WinDefend
  • wscsvc
  • sppsvc
  • Sense
  • SecurityHealthService
• It duplicates the token of the following:
  • explorer.exe - to gain privileged domain access
  • lsass.exe
  • TrustedInstaller - service is started if not yet running