Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Trendmicro_file' = '%TEMP%\Trendmicro_file\csrss.exe'
Malicious functions:
Creates and executes the following:
- '%TEMP%\Trendmicro_file\csrss.exe'
Executes the following:
- '<SYSTEM32>\reg.exe' add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run" /v Trendmicro_file /t REG_SZ /d "%TEMP%\Trendmicro_file\csrss.exe"
Modifies file system :
Creates the following files:
- %TEMP%\Trendmicro_file\csrss.exe
Sets the 'hidden' attribute to the following files:
- %TEMP%\Trendmicro_file\csrss.exe
Network activity:
Connects to:
- 'ci####.myftp.org':80
TCP:
HTTP GET requests:
- ci####.myftp.org/231156n.txt
- ci####.myftp.org/197593n.txt
HTTP POST requests:
- ci####.myftp.org/230140.asp
- ci####.myftp.org/196578.asp
UDP:
- DNS ASK ci####.myftp.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'