Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /S'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /N'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /R'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /E'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /L'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /m'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /Z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /t'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /x'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /w'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /j'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /D'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /K'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /b'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /o'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /f'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /U'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /V'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /C'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /P'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /A'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /i'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /G'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'voeem' = '%HOMEPATH%\voeem.exe /H'
Creates the following files on removable media:
- <Drive name for removable media>:\Passwords.exe
- <Drive name for removable media>:\RCX5.tmp
- <Drive name for removable media>:\RCX4.tmp
- <Drive name for removable media>:\RCX8.tmp
- <Drive name for removable media>:\RCX7.tmp
- <Drive name for removable media>:\RCX6.tmp
- <Drive name for removable media>:\Secret.exe
- <Drive name for removable media>:\voeem.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\Porn.exe
- <Drive name for removable media>:\RCX3.tmp
- <Drive name for removable media>:\Sexy.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\winlogon.exe' = '<SYSTEM32>\winlogon.exe:*:enabled:@shell32.dll,-1'
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Creates and executes the following:
- '%HOMEPATH%\voeem.exe'
- '%TEMP%\svchost.exe'
- '%TEMP%\zaeoh.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%\lnw9kqtm.cmdline"
Injects code into
the following system processes:
- <SYSTEM32>\winlogon.exe
Modifies file system :
Creates the following files:
- %HOMEPATH%\voeem.exe
- %TEMP%\lnw9kqtm.out
- %TEMP%\lnw9kqtm.cmdline
- %TEMP%\lnw9kqtm.exe
- %TEMP%\RES2.tmp
- %TEMP%\vbc1.tmp
- %TEMP%\svchost.exe
- %TEMP%\zaeoh.exe
- %TEMP%\iC.resources
- %TEMP%\lnw9kqtm.0.vb
- %TEMP%\MSNPSharp.dll
- %TEMP%\8m5Pa.resources
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\voeem.exe
- <Drive name for removable media>:\autorun.inf
- %HOMEPATH%\voeem.exe
Deletes the following files:
- <Drive name for removable media>:\Sexy.exe
- %TEMP%\lnw9kqtm.cmdline
- <Drive name for removable media>:\Passwords.exe
- <Drive name for removable media>:\Porn.exe
- %TEMP%\lnw9kqtm.out
- %TEMP%\vbc1.tmp
- %TEMP%\RES2.tmp
- %TEMP%\lnw9kqtm.0.vb
- %TEMP%\lnw9kqtm.exe
Network activity:
Connects to:
- 'id##rj.com':443
- 'so##ax.com':443
- 'aq##sx.com':443
- '83.##3.119.197':80
- 'ns#.###nsearcher.net':8000
- 'il#.#renz.pl':80
- 'an#.#renz.pl':80
- 'xy##xs.com':443
UDP:
- DNS ASK id##rj.com
- DNS ASK so##ax.com
- DNS ASK ef##gc.com
- DNS ASK aq##sx.com
- DNS ASK ns#.###nsearcher.net
- DNS ASK il#.#renz.pl
- DNS ASK an#.#renz.pl
- DNS ASK xy##xs.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'