Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '5cd8f17f4086744065eb0992a09e05a2' = '"%TEMP%\Trojan.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '5cd8f17f4086744065eb0992a09e05a2' = '"%TEMP%\Trojan.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\5cd8f17f4086744065eb0992a09e05a2.exe
Creates the following files on removable media:
- <Drive name for removable media>:\5cd8f17f4086744065eb0992a09e05a2.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\Trojan.exe' = '%TEMP%\Trojan.exe:*:Enabled:Trojan.exe'
Creates and executes the following:
- '%TEMP%\Trojan.exe'
- '%TEMP%\221.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\Trojan.exe" "Trojan.exe" ENABLE
Modifies file system :
Creates the following files:
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new
- %TEMP%\221.exe
- %TEMP%\Trojan.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\5cd8f17f4086744065eb0992a09e05a2.exe
Deletes the following files:
- <SYSTEM32>\PerfStringBackup.TMP
Moves the following files:
- 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
- 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
Network activity:
Connects to:
- 'mo####oz.zapto.org':1177
UDP:
- DNS ASK mo####oz.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
