Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'c757997b98391747c09155b11218d419' = '"%TEMP%\Chrome..exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'c757997b98391747c09155b11218d419' = '"%TEMP%\Chrome..exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\c757997b98391747c09155b11218d419.exe
Creates the following files on removable media:
- <Drive name for removable media>:\c757997b98391747c09155b11218d419.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\Chrome..exe' = '%TEMP%\Chrome..exe:*:Enabled:Chrome..exe'
Creates and executes the following:
- '%TEMP%\Chrome..exe'
- '%HOMEPATH%\Local Settings\Tempserver.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\Chrome..exe" "Chrome..exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\Chrome..exe
- %HOMEPATH%\Local Settings\Tempserver.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\c757997b98391747c09155b11218d419.exe
Network activity:
Connects to:
- 'he#####dy1996.no-ip.biz':1177
UDP:
- DNS ASK he#####dy1996.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'