Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- <SYSTEM32>\tasks\runtime broker
Malicious functions
Searches for windows to
detect analytical utilities:
- ClassName: 'RegmonClass', WindowName: ''
- ClassName: 'FilemonClass', WindowName: ''
- ClassName: 'PROCMON_WINDOW_CLASS', WindowName: ''
Modifies file system
Creates the following files
- %APPDATA%\microsoft\runtime broker.exe
Sets the 'hidden' attribute to the following files
- %APPDATA%\microsoft\runtime broker.exe
Network activity
Connects to
- 'Pr######n-32385.portmap.io':32385
TCP
HTTP GET requests
- http://ip##pi.com/json/
UDP
- DNS ASK ip##pi.com
- DNS ASK Pr######n-32385.portmap.io
Miscellaneous
Searches for the following windows
- ClassName: 'Registry Monitor - Sysinternals: www.sysinternals.com' WindowName: ''
- ClassName: '18467-41' WindowName: ''
- ClassName: 'File Monitor - Sysinternals: www.sysinternals.com' WindowName: ''
- ClassName: 'Process Monitor - Sysinternals: www.sysinternals.com' WindowName: ''
Creates and executes the following
- '%APPDATA%\microsoft\runtime broker.exe'
Executes the following
- '%WINDIR%\syswow64\schtasks.exe' /create /tn "Runtime Broker" /sc ONLOGON /tr "<Full path to file>" /rl HIGHEST /f
- '%WINDIR%\syswow64\schtasks.exe' /create /tn "Runtime Broker" /sc ONLOGON /tr "%APPDATA%\Microsoft\Runtime Broker.exe" /rl HIGHEST /f
