Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Update' = '"<Full path to file>"'
Creates or modifies the following files
- <SYSTEM32>\tasks\windows update
Malicious functions
Injects code into
the following user processes:
- updates.exe
Modifies file system
Creates the following files
- %APPDATA%\windows\updates.exe
Network activity
Connects to
- 'ip##pi.com':80
- '87.##0.120.27':61540
- 'localhost':61540
- '87.##1.86.205':61541
TCP
HTTP GET requests
- http://ip##pi.com/json/
UDP
- DNS ASK ip##pi.com
Miscellaneous
Creates and executes the following
- '%APPDATA%\windows\updates.exe'
Restarts the analyzed sample
Executes the following
- '%WINDIR%\syswow64\schtasks.exe' /create /tn "Windows Update" /sc ONLOGON /tr "<Full path to file>" /rl HIGHEST /f
- '%WINDIR%\syswow64\schtasks.exe' /create /tn "Windows Update" /sc ONLOGON /tr "%APPDATA%\Windows\updates.exe" /rl HIGHEST /f
