Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '02f3783a5e97e7044d043df01c428c5f' = '"%TEMP%\exso.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '02f3783a5e97e7044d043df01c428c5f' = '"%TEMP%\exso.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\02f3783a5e97e7044d043df01c428c5f.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\exso.exe' = '%TEMP%\exso.exe:*:Enabled:exso.exe'
Creates and executes the following:
- '%TEMP%\exso.exe'
- '%TEMP%\691.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\exso.exe" "exso.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\exso.exe
- %TEMP%\691.exe
Network activity:
Connects to:
- 'fo#####llah.zapto.org':1177
UDP:
- DNS ASK fo#####llah.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
