Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'WindowsSystemMonitor' = '"%APPDATA%\Microsoft\Windows\SystemMonitor\UserSession.exe"'
Modifies file system
Creates the following files
- %APPDATA%\microsoft\windows\systemmonitor\usersession.exe
Sets the 'hidden' attribute to the following files
- %APPDATA%\microsoft\windows\systemmonitor\usersession.exe
Deletes itself.
Network activity
Connects to
- 'ap#.##legram.org':443
- 'ap#.#ithub.com':443
TCP
HTTP GET requests
- http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?57##############
Other
- 'ap#.#ithub.com':443
UDP
- DNS ASK ap#.##legram.org
- DNS ASK ap#.#ithub.com
Miscellaneous
Creates and executes the following
- '%APPDATA%\microsoft\windows\systemmonitor\usersession.exe' --monitor
Executes the following
- '%APPDATA%\microsoft\windows\systemmonitor\usersession.exe' --monitor' (with hidden window)
