Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'WinRAR SFX' = '%APPDATA%\Microsoft\deiivfwd\rersdrsw.exe'
Malicious functions
Injects code into
the following system processes:
- %WINDIR%\syswow64\explorer.exe
Modifies file system
Creates the following files
- %APPDATA%\microsoft\deiivfwd\rersdrsw.exe
Sets the 'hidden' attribute to the following files
- %APPDATA%\microsoft\deiivfwd\rersdrsw.exe
Deletes itself.
Network activity
TCP
- 'microsoft.com':443
- 'msdn.microsoft.com':443
- 'support.microsoft.com':443
UDP
- DNS ASK microsoft.com
- DNS ASK go.microsoft.com
- DNS ASK msdn.microsoft.com
- DNS ASK support.microsoft.com
- DNS ASK si####domain.biz
Miscellaneous
Executes the following
- '%WINDIR%\syswow64\explorer.exe'
