Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '31b7098134c07bd74261201a062b699f' = '"%TEMP%\fierbloxt.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '31b7098134c07bd74261201a062b699f' = '"%TEMP%\fierbloxt.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\31b7098134c07bd74261201a062b699f.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\fierbloxt.exe' = '%TEMP%\fierbloxt.exe:*:Enabled:fierbloxt.exe'
Creates and executes the following:
- '%TEMP%\fierbloxt.exe'
- '%TEMP%\994.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\fierbloxt.exe" "fierbloxt.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\fierbloxt.exe
- %TEMP%\994.exe
Network activity:
Connects to:
- 'fa####g.no-ip.biz':1177
UDP:
- DNS ASK fa####g.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
