Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '29c77f8b8bd2970844aa27b23b706a1a' = '"%APPDATA%\sevchost.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '29c77f8b8bd2970844aa27b23b706a1a' = '"%APPDATA%\sevchost.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\29c77f8b8bd2970844aa27b23b706a1a.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\sevchost.exe' = '%APPDATA%\sevchost.exe:*:Enabled:sevchost.exe'
Creates and executes the following:
- '%APPDATA%\sevchost.exe'
- '%TEMP%\753.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%APPDATA%\sevchost.exe" "sevchost.exe" ENABLE
Modifies file system :
Creates the following files:
- %APPDATA%\sevchost.exe
- %TEMP%\753.exe
Network activity:
Connects to:
- 'ro####.no-ip.biz':1177
UDP:
- DNS ASK ro####.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
