Win32.HLLW.Autoruner2.52892
Added to the Dr.Web virus database:
2019-07-21
Virus description added:
2019-07-24
Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'svchost.exe' = '"%APPDATA%\svchost.exe"'
- [<HKLM>\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'svchost.exe' = '"%APPDATA%\svchost.exe"'
Creates or modifies the following files
- %APPDATA%\microsoft\windows\start menu\programs\startup\svchost.exe
Creates the following files on removable media
- <Drive name for removable media>:\svchost.exe
- <Drive name for removable media>:\my pictures.lnk
- <Drive name for removable media>:\000814251_video_01.avi.lnk
- <Drive name for removable media>:\correct.avi.lnk
- <Drive name for removable media>:\archer.avi.lnk
- <Drive name for removable media>:\default.bmp.lnk
- <Drive name for removable media>:\tileimage.bmp.lnk
- <Drive name for removable media>:\dialmap.bmp.lnk
- <Drive name for removable media>:\coffee.bmp.lnk
- <Drive name for removable media>:\toolbar.bmp.lnk
- <Drive name for removable media>:\contosoroot_1.cer.lnk
Malicious functions
Executes the following
- '%WINDIR%\syswow64\netsh.exe' firewall add allowedprogram "%APPDATA%\svchost.exe" "svchost.exe" ENABLE
Modifies file system
Creates the following files
- %APPDATA%\svchost.exe.ini
- %APPDATA%\svchost.exe
Sets the 'hidden' attribute to the following files
- <Drive name for removable media>:\svchost.exe
Network activity
UDP
- DNS ASK bi####t1.no-ip.org
Miscellaneous
Creates and executes the following
- '%APPDATA%\svchost.exe' "del" <Full path to file>
- '%WINDIR%\syswow64\netsh.exe' firewall add allowedprogram "%APPDATA%\svchost.exe" "svchost.exe" ENABLE' (with hidden window)
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