Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'd03c2344e366b7c5b0cb4c55341088af' = '"%TEMP%\avira.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'd03c2344e366b7c5b0cb4c55341088af' = '"%TEMP%\avira.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\d03c2344e366b7c5b0cb4c55341088af.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\avira.exe' = '%TEMP%\avira.exe:*:Enabled:avira.exe'
Creates and executes the following:
- '%TEMP%\avira.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\avira.exe" "avira.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\avira.exe
Deletes the following files:
- <SYSTEM32>\PerfStringBackup.TMP
- <SYSTEM32>\wbem\Performance\WmiApRpl.ini
Network activity:
Connects to:
- 'ay####os.no-ip.biz':1177
UDP:
- DNS ASK ay####os.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
