Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'remcos' = '"%WINDIR%\SysWOW64\sys\sys.exe"'
- [<HKLM>\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\] 'remcos' = '"%WINDIR%\SysWOW64\sys\sys.exe"'
- [<HKLM>\Software\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\] 'Shell' = 'explorer.exe, "%WINDIR%\SysWOW64\sys\sys.exe"'
- [<HKLM>\Software\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\] 'Userinit' = '<SYSTEM32>\userinit.exe, "%WINDIR%\SysWOW64\sys\sys.exe"'
- [<HKLM>\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\] 'remcos' = '"%WINDIR%\SysWOW64\sys\sys.exe"'
Creates the following services
- [<HKLM>\System\CurrentControlSet\Services\439D308E] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\439D308E] 'ImagePath' = '<SYSTEM32>\svchost.exe -k LocalService'
- [<HKLM>\SYSTEM\ControlSet001\services\439D308E] 'ImagePath' = '<SYSTEM32>\svchost.exe -k LocalService'
- [<HKLM>\SYSTEM\ControlSet001\services\439D308E\Parameters] 'ServiceDll' = '%PROGRAMDATA%\439D308E\57559B37.dll'
- [<HKLM>\SYSTEM\ControlSet001\services\439D308E] 'Start' = '00000002'
Malicious functions
Injects code into
the following system processes:
- <SYSTEM32>\winlogon.exe
- <SYSTEM32>\services.exe
Terminates or attempts to terminate
the following system processes:
- %WINDIR%\syswow64\rundll32.exe
the following user processes:
- firefox.exe
Searches for registry branches where third party applications store passwords
- [<HKCU>\SOFTWARE\Mirabilis\ICQ\NewOwners]
- [<HKCU>\Software\Microsoft\MSNMessenger]
- [<HKCU>\Software\Yahoo\Pager]
- [<HKCU>\Software\America Online\AOL Instant Messenger (TM)\CurrentVersion\Users]
- [<HKCU>\Software\Google\Google Talk\Accounts]
- [<HKCU>\Software\Paltalk]
- [<HKCU>\Software\AIM\AIMPro]
- [<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Trillian]
Reads files which store third party applications passwords
- %APPDATA%\mozilla\firefox\profiles.ini
- %APPDATA%\opera software\opera stable\login data
Modifies settings of Windows Internet Explorer
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyEnable' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyServer' = '127.0.0.1:8080'
- [\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyEnable' = '00000001'
- [\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyServer' = '127.0.0.1:8080'
- [\REGISTRY\USER\S-1-5-20\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyEnable' = '00000001'
- [\REGISTRY\USER\S-1-5-20\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyServer' = '127.0.0.1:8080'
- [<HKCU>_Classes\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyEnable' = '00000001'
- [<HKCU>_Classes\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyServer' = '127.0.0.1:8080'
Modifies file system
Creates the following files
- %PROGRAMDATA%\439d308e\51bd6360
- %PROGRAMDATA%\439d308e\6d809526.dll
- %PROGRAMDATA%\439d308e\57559b37.dll
- %PROGRAMDATA%\439d308e\f6b7bc68\10851d5d43a2d0cde947b7654f9b6a63
- %PROGRAMDATA%\439d308e\a5d507f9
- %TEMP%\1315843.tmp
- %TEMP%\1315937.tmp
- %TEMP%\1315984.tmp
- %TEMP%\1316000.tmp
- %PROGRAMDATA%\439d308e\8bec3f5c\orion.exe
- %PROGRAMDATA%\439d308e\8bec3f5c\client.exe
- %WINDIR%\syswow64\sys\sys.exe
- %WINDIR%\temp\install.vbs
- %PROGRAMDATA%\microsoft\crypto\rsa\machinekeys\3696f2f9d14157cb61d321bb13605318_36d1130a-ac2e-44f7-9dc1-e424fbcbe0ee
- %PROGRAMDATA%\439d308e\8bec3f5c\feaf4742831d189875be7ca0c5e33962.zip
- %TEMP%\1351968.tmp-shm
Sets the 'hidden' attribute to the following files
- %PROGRAMDATA%\439d308e\6d809526.dll
- %PROGRAMDATA%\439d308e\57559b37.dll
- %WINDIR%\syswow64\sys\sys.exe
Deletes the following files
- %PROGRAMDATA%\439d308e\a5d507f9
- %PROGRAMDATA%\439d308e\8bec3f5c\feaf4742831d189875be7ca0c5e33962.zip
- %TEMP%\1351968.tmp-shm
- %WINDIR%\temp\install.vbs
- %PROGRAMDATA%\439d308e\f6b7bc68\10851d5d43a2d0cde947b7654f9b6a63
Substitutes the following files
- %PROGRAMDATA%\439d308e\a5d507f9
Deletes itself.
Miscellaneous
Adds a root certificate
Searches for the following windows
- ClassName: '184674D1' WindowName: '184674D1'
Creates and executes the following
- '%PROGRAMDATA%\439d308e\8bec3f5c\orion.exe'
- '%PROGRAMDATA%\439d308e\8bec3f5c\client.exe'
- '%WINDIR%\syswow64\wscript.exe' "%WINDIR%\TEMP\install.vbs"
- '%WINDIR%\syswow64\sys\sys.exe'
- '%WINDIR%\syswow64\rundll32.exe' <Full path to file>,f0' (with hidden window)
- '%WINDIR%\syswow64\rundll32.exe' %ProgramFiles%\439D308E\57559B37.dll,f1 <Full path to file>@1940' (with hidden window)
- '%WINDIR%\syswow64\wscript.exe' "%WINDIR%\TEMP\install.vbs"' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c "%WINDIR%\SysWOW64\sys\sys.exe"' (with hidden window)
- '%WINDIR%\syswow64\systeminfo.exe' ' (with hidden window)
Executes the following
- '%WINDIR%\syswow64\rundll32.exe' <Full path to file>,f0
- '%WINDIR%\syswow64\rundll32.exe' %ProgramFiles%\439D308E\57559B37.dll,f1 <Full path to file>@1940
- '<SYSTEM32>\rundll32.exe' %ProgramFiles%\439D308E\57559B37.dll,f1 <Full path to file>@1940
- '<SYSTEM32>\rundll32.exe' %PROGRAMDATA%\439D308E\57559B37.dll,f2 72D316C1CAD6D793C258DF23A1B24090
- '<SYSTEM32>\svchost.exe' -k LocalService
- '%WINDIR%\syswow64\rundll32.exe' %PROGRAMDATA%\439D308E\6D809526.dll,f3
- '%WINDIR%\syswow64\rundll32.exe' %PROGRAMDATA%\439D308E\6D809526.dll,f7
- '%WINDIR%\syswow64\cmd.exe' <SYSTEM32>\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
- '%WINDIR%\syswow64\rundll32.exe' %PROGRAMDATA%\439D308E\6D809526.dll,f2 B003C6D5EF304D6EC18B5FD767831E49
- '%WINDIR%\syswow64\reg.exe' ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
- '%WINDIR%\syswow64\cmd.exe' /c "%WINDIR%\SysWOW64\sys\sys.exe"
- '%ProgramFiles(x86)%\internet explorer\iexplore.exe'
- '%WINDIR%\syswow64\svchost.exe'
- '%WINDIR%\syswow64\systeminfo.exe'
