Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\Microsoft Update.lnk
Malicious functions:
Executes the following:
- '<SYSTEM32>\rundll32.exe' <SYSTEM32>\shell32.dll,OpenAs_RunDLL %TEMP%\TCALAC.pdf
Modifies file system:
Creates the following files:
- %TEMP%\aut2.tmp
- %TEMP%\TCALAC.pdf
- %TEMP%\aut1.tmp
- %TEMP%\ttpjtwv
Deletes the following files:
- %TEMP%\aut2.tmp
- %TEMP%\ttpjtwv
- %TEMP%\aut1.tmp
Network activity:
Connects to:
- 'iy###p.ddns.net':1337
UDP:
- DNS ASK iy###p.ddns.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
