Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Avirnt' = ''
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{0765JIE8-MCU6-INF0-7D1N-0A2JG81L0B40}] 'StubPath' = '<SYSTEM32>\Microsoft\Server.exe Restart'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Avgnt' = ''
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'Policies' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Policies' = ''
Malicious functions:
Creates and executes the following:
- '<SYSTEM32>\Microsoft\Server.exe'
Executes the following:
- '<SYSTEM32>\wbem\wmiadap.exe' /R /T
Modifies file system :
Creates the following files:
- %TEMP%\XxX.xXx
- %TEMP%\UuU.uUu
- %APPDATA%\logs.dat
- <SYSTEM32>\Microsoft\Server.exe
- %TEMP%\XX--XX--XX.txt
Sets the 'hidden' attribute to the following files:
- %APPDATA%\logs.dat
Deletes the following files:
- <SYSTEM32>\wbem\Performance\WmiApRpl.ini
- <SYSTEM32>\PerfStringBackup.TMP
- %TEMP%\XxX.xXx
- %TEMP%\XX--XX--XX.txt
- %TEMP%\UuU.uUu
Network activity:
Connects to:
- 'ca####.no-ip.biz':9030
UDP:
- DNS ASK ca####.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'Indicator' WindowName: ''
