Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Update' = '%TEMP%\Windows Updata\svchost.exe'
- [<HKLM>\Software\Microsoft\Windows NT\CurrentVersion\Winlogon] 'UserInit' = '<SYSTEM32>\userinit.exe,%TEMP%\Windows Updata\svchost.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Defender' = '%PROGRAMDATA%\InstallDir\svchost.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Windows Update' = '%PROGRAMDATA%\InstallDir\svchost.exe'
- [<HKLM>\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'Google Update' = '%PROGRAMDATA%\InstallDir\svchost.exe'
- [<HKLM>\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Steam Client Bootstrapper' = '%PROGRAMDATA%\InstallDir\svchost.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'aaf8ee5db49e2bd3948fee2ac80945fe' = '"%TEMP%\svchost.exe" ..'
- [<HKLM>\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'aaf8ee5db49e2bd3948fee2ac80945fe' = '"%TEMP%\svchost.exe" ..'
Creates or modifies the following files
- %APPDATA%\microsoft\windows\start menu\programs\startup\steam client bootstrapper.exe
- %APPDATA%\microsoft\windows\start menu\programs\startup\aaf8ee5db49e2bd3948fee2ac80945fe.exe
- <SYSTEM32>\tasks\stupdate
- <SYSTEM32>\tasks\windows defender
Creates the following files on removable media
- <Drive name for removable media>:\svchost.exe
- <Drive name for removable media>:\autorun.inf
Malicious functions
To bypass firewall, removes or modifies the following registry keys
- [<HKLM>\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
- Command Prompt (CMD)
- Windows Task Manager (Taskmgr)
- Registry Editor (RegEdit)
- Windows Security Center
blocks the following features:
- User Account Control (UAC)
- Windows Security Center
Executes the following
- '%WINDIR%\syswow64\netsh.exe' firewall add allowedprogram "%PROGRAMDATA%\InstallDir\svchost.exe" "svchost.exe" ENABLE
- '%WINDIR%\syswow64\netsh.exe' firewall add allowedprogram "%TEMP%\svchost.exe" "svchost.exe" ENABLE
- '%WINDIR%\syswow64\taskkill.exe' /F /IM Taskmgr.exe
Injects code into
the following system processes:
- %WINDIR%\microsoft.net\framework\v2.0.50727\regasm.exe
the following user processes:
- iexplore.exe
Modifies file system
Creates the following files
- %TEMP%\svchost.exe
- %WINDIR%\syswow64\svсѓhost.exe
- D:\autorun.inf
- C:\autorun.inf
- D:\svchost.exe
- C:\svchost.exe
- %TEMP%\stupdate.exe
- %PROGRAMDATA%\installdir\svchost.exe
- %TEMP%\melt.txt
- %APPDATA%\microsoft\svchost.exe
- %TEMP%\windows updata\svchost.exe
- %TEMP%\fckjosnkmc.txt
- %TEMP%\svch0st.exe
- %TEMP%\svГ±hГ®st.exe
- %TEMP%\svГ±host.exe
- %TEMP%\svchГ®st.exe
- %WINDIR%\syswow64\windows\svсhost.exe
- %APPDATA%\logs\05-16-2020
Sets the 'hidden' attribute to the following files
- %TEMP%\svchost.exe
- %TEMP%\windows updata\svchost.exe
- %TEMP%\svchГ®st.exe
- %TEMP%\svch0st.exe
- C:\autorun.inf
- D:\autorun.inf
- <Drive name for removable media>:\svchost.exe
- <Drive name for removable media>:\autorun.inf
- %WINDIR%\syswow64\windows\svсhost.exe
Deletes the following files
- %TEMP%\svchost.exe
- %TEMP%\svГ±hГ®st.exe
Substitutes the following files
- %TEMP%\svchost.exe
Network activity
Connects to
- 'ha#####aft.hopto.org':4444
TCP
HTTP GET requests
- http://ip##pi.com/json/
UDP
- DNS ASK ha#####aft.hopto.org
- DNS ASK ip##pi.com
Miscellaneous
Searches for the following windows
- ClassName: '' WindowName: ''
Creates and executes the following
- '%TEMP%\svchost.exe'
- '%WINDIR%\syswow64\svсѓhost.exe'
- '%APPDATA%\microsoft\svchost.exe'
- '%TEMP%\windows updata\svchost.exe'
- '%WINDIR%\syswow64\windows\svсhost.exe'
- '%PROGRAMDATA%\installdir\svchost.exe'
- '%TEMP%\svГ±host.exe'
- '%TEMP%\svchГ®st.exe'
- '%TEMP%\svch0st.exe'
- '%TEMP%\svГ±hГ®st.exe'
- '%WINDIR%\syswow64\cmd.exe' /k <SYSTEM32>\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f' (with hidden window)
- '%WINDIR%\syswow64\reg.exe' add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoControlPanel /t REG_DWORD /d 1 /f' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /k attrib "%TEMP%\svch0st.exe" +s +h' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /k attrib "%LOCALAPPDATA%\Temp" +s +h' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C attrib +s +h "%PROGRAMDATA%\InstallDir"' (with hidden window)
- '%WINDIR%\syswow64\netsh.exe' firewall add allowedprogram "%PROGRAMDATA%\InstallDir\svchost.exe" "svchost.exe" ENABLE' (with hidden window)
- '%WINDIR%\syswow64\netsh.exe' firewall add allowedprogram "%TEMP%\svchost.exe" "svchost.exe" ENABLE' (with hidden window)
- '%WINDIR%\syswow64\taskkill.exe' /F /IM Taskmgr.exe' (with hidden window)
- '%WINDIR%\syswow64\schtasks.exe' /create /sc minute /mo 1 /tn StUpdate /tr %LOCALAPPDATA%\Temp/StUpdate.exe' (with hidden window)
- '%WINDIR%\syswow64\reg.exe' add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoFolderOptions /t REG_DWORD /d 1 /f' (with hidden window)
Executes the following
- '%WINDIR%\microsoft.net\framework\v2.0.50727\regasm.exe'
- '%WINDIR%\syswow64\cmd.exe' /k attrib "%TEMP%\svch0st.exe" +s +h
- '%WINDIR%\syswow64\cmd.exe' /k attrib "%LOCALAPPDATA%\Temp" +s +h
- '%WINDIR%\syswow64\attrib.exe' "%TEMP%\svch0st.exe" +s +h
- '%WINDIR%\syswow64\attrib.exe' "%LOCALAPPDATA%\Temp" +s +h
- '%ProgramFiles(x86)%\internet explorer\iexplore.exe'
- '%WINDIR%\syswow64\cmd.exe' /C attrib +s +h "%PROGRAMDATA%\InstallDir"
- '%WINDIR%\syswow64\attrib.exe' +s +h "%PROGRAMDATA%\InstallDir"
- '%WINDIR%\syswow64\schtasks.exe' /create /sc minute /mo 1 /tn StUpdate /tr %LOCALAPPDATA%\Temp/StUpdate.exe
- '%WINDIR%\syswow64\cmd.exe' /k <SYSTEM32>\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
- '%WINDIR%\syswow64\reg.exe' add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoControlPanel /t REG_DWORD /d 1 /f
- '%WINDIR%\syswow64\reg.exe' add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoFolderOptions /t REG_DWORD /d 1 /f
- '%WINDIR%\syswow64\schtasks.exe' /create /tn "Windows Defender" /sc ONLOGON /tr "%TEMP%\svГ±host.exe" /rl HIGHEST /f
- '%WINDIR%\syswow64\schtasks.exe' /create /tn "Windows Defender" /sc ONLOGON /tr "%WINDIR%\SysWOW64\Windows\svсhost.exe" /rl HIGHEST /f
- '<SYSTEM32>\taskeng.exe' {52E0BE05-E5E7-4AE7-B58D-BD9574A3205C} S-1-5-21-1960123792-2022915161-3775307078-1001:uzoxskrps\user:Interactive:[1]
