Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '627c9153b07977d38ceea1e31f05ccba' = '"%TEMP%\security.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '627c9153b07977d38ceea1e31f05ccba' = '"%TEMP%\security.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\627c9153b07977d38ceea1e31f05ccba.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\security.exe' = '%TEMP%\security.exe:*:Enabled:security.exe'
Creates and executes the following:
- '%TEMP%\security.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\security.exe" "security.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\security.exe
- %APPDATA%\Microsoft\CLR Security Config\v2.0.50727.42\security.config.cch.new
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new
Deletes the following files:
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.2900.175015
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.2900.175015
Moves the following files:
- from %APPDATA%\Microsoft\CLR Security Config\v2.0.50727.42\security.config.cch.new to %APPDATA%\Microsoft\CLR Security Config\v2.0.50727.42\security.config.cch
- from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.2900.175015
- from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.2900.175015
- from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch
- from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch
Network activity:
Connects to:
- 'bl#####irusss.no-ip.biz':9080
UDP:
- DNS ASK bl#####irusss.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
