Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Ucwgwa' = '%APPDATA%\Microsoft\Windows\Ucwgwa.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Explorer Manager' = '%APPDATA%\Update\Explorer.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\MkxeRrv.exe
Malicious functions:
Executes the following:
- '<SYSTEM32>\mspaint.exe'
- '<SYSTEM32>\calc.exe'
- '<SYSTEM32>\svchost.exe'
Injects code into
the following system processes:
- <SYSTEM32>\mspaint.exe
a large number of user processes.
Modifies file system:
Creates the following files:
- %APPDATA%\Microsoft\Windows\Ucwgwa.exe
- %TEMP%\c731200
- %APPDATA%\c731200
- %APPDATA%\Update\Explorer.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\MkxeRrv.exe
Deletes itself.
Network activity:
Connects to:
- 'n.##tys.ru':3720
- 'ap#.##pmania.com':80
TCP:
HTTP GET requests:
- http://ap#.##pmania.com/
UDP:
- DNS ASK n.##tys.ru
- DNS ASK ap#.##pmania.com
