Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{08B0E5JF-4FCB-11CF-AAA5-00401C6XX500}] 'StubPath' = 'c:\dir\install\install\server.exe Restart'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Policies' = 'c:\dir\install\install\server.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'Policies' = 'c:\dir\install\install\server.exe'
Malicious functions:
Creates and executes the following:
- 'C:\dir\install\install\server.exe'
Executes the following:
- 'C:\dir\install\install\server.exe'
- '%ProgramFiles%\Internet Explorer\IEXPLORE.EXE'
Injects code into
the following user processes:
- server.exe
Modifies file system:
Creates the following files:
- %TEMP%\XxX.xXx
- %TEMP%\UuU.uUu
- %APPDATA%\logs.dat
- C:\dir\install\install\server.exe
- %TEMP%\XX--XX--XX.txt
Sets the 'hidden' attribute to the following files:
- %APPDATA%\logs.dat
Deletes the following files:
- %TEMP%\XxX.xXx
- %TEMP%\UuU.uUu
- %TEMP%\XX--XX--XX.txt
Deletes itself.
Network activity:
Connects to:
- 'co####.zapto.org':83
UDP:
- DNS ASK co####.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'MS_WINHELP' WindowName: ''
