Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Task Service' = '%APPDATA%\Microsoft\Security\mcrservice.exe'
Malicious functions:
Creates and executes the following:
- '%APPDATA%\Microsoft\Security\mcrservice.exe' <Full path to file>
Modifies file system:
Creates the following files:
- %HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\KHMHGZ4F\gate[1].php
- %APPDATA%\Microsoft\Security\mcrservice.exe
Deletes itself.
Network activity:
Connects to:
- '54.##.43.134':80
- 'localhost':1039
- 'xm#####.nanopool.org':14444
TCP:
HTTP GET requests:
- http://54.##.43.134/gate.php?ha###########################################################################
UDP:
- DNS ASK xm#####.nanopool.org
Miscellaneous:
Searches for the following windows:
- ClassName: '?' WindowName: ''
- ClassName: '' WindowName: ''
- ClassName: 'SysTreeView32' WindowName: ''
- ClassName: '®' WindowName: ''
- ClassName: '' WindowName: ''
- ClassName: '' WindowName: '?'
- ClassName: '?' WindowName: ''
- ClassName: 'Edit' WindowName: ''
