Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '8b829affaed888aa4254565f04bd1480' = '"%TEMP%\Yahoo Messenger.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '8b829affaed888aa4254565f04bd1480' = '"%TEMP%\Yahoo Messenger.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\8b829affaed888aa4254565f04bd1480.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\Yahoo Messenger.exe' = '%TEMP%\Yahoo Messenger.exe:*:Enabled:Yahoo Messenger.exe'
Creates and executes the following:
- '%TEMP%\Yahoo Messenger.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\Yahoo Messenger.exe" "Yahoo Messenger.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\Yahoo Messenger.exe
Network activity:
Connects to:
- 'go#####hrome.sytes.net':82
UDP:
- DNS ASK go#####hrome.sytes.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
