Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '.nvsvc' = '%WINDIR%\system\smss.exe /w'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\svchost.exe' = '<SYSTEM32>\svchost.exe:*:Enabled:Microsoft ...
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
- Windows Update
Injects code into
the following system processes:
- <SYSTEM32>\svchost.exe
Modifies file system:
Creates the following files:
- %WINDIR%\system\smss.exe
Network activity:
Connects to:
- 'ad.##rdun.com':80
UDP:
- DNS ASK ad.##rdun.com
- '21#.#55.189.85':1900
Miscellaneous:
Executes the following:
- '<SYSTEM32>\svchost.exe'
- '<SYSTEM32>\alg.exe'
