Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%HOMEPATH%\koievo.exe /p'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'koievo' = '%HOMEPATH%\koievo.exe /e'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koievo' = '%HOMEPATH%\koievo.exe /g'
- [<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '%HOMEPATH%\koievo.exe /s'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\svchost.exe
Creates the following files on removable media:
- <Drive name for removable media>:\Sexy.exe
- <Drive name for removable media>:\RCX3.tmp
- <Drive name for removable media>:\Porn.exe
- <Drive name for removable media>:\Secret.exe
- <Drive name for removable media>:\Bloc-notes.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\koievo.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Creates and executes the following:
- '%HOMEPATH%\koievo.exe'
- '%TEMP%\svchost.exe'
- '%TEMP%\Sexy.exe'
Executes the following:
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES2.tmp" "%TEMP%\vbc1.tmp"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\c_2je7zr.cmdline"
Modifies file system :
Creates the following files:
- %TEMP%\RES2.tmp
- %TEMP%\vbc1.tmp
- %TEMP%\c_2je7zr.out
- %TEMP%\windowsupdate.ico
- %HOMEPATH%\koievo.exe
- %TEMP%\c_2je7zr.exe
- %TEMP%\c_2je7zr.cmdline
- %TEMP%\Sexy.exe
- %TEMP%\svchost.exe
- %TEMP%\GbAhfV.resources
- %TEMP%\c_2je7zr.0.vb
- %TEMP%\MSNPSharp.dll
- %TEMP%\27J05.resources
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- %HOMEPATH%\koievo.exe
Deletes the following files:
- <Drive name for removable media>:\Bloc-notes.exe
- %TEMP%\c_2je7zr.cmdline
- <Drive name for removable media>:\Sexy.exe
- %TEMP%\windowsupdate.ico
- %TEMP%\c_2je7zr.0.vb
- %TEMP%\vbc1.tmp
- %TEMP%\RES2.tmp
- %TEMP%\c_2je7zr.out
- %TEMP%\c_2je7zr.exe
Network activity:
Connects to:
- 'ns#.##lpupdated.com':8000
- '25#.#55.255.255':8000
- 'ns#.##lpupdates.org':8000
- '17#.#3.169.14':80
- 'ns#.##lpupdated.org':8000
UDP:
- DNS ASK ns#.##lpupdates.net
- DNS ASK ns#.##lpupdater.net
- DNS ASK ns#.##lpupdated.com
- DNS ASK ns#.##lpupdated.org
- DNS ASK ns#.##lpupdates.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
