Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'wupdate' = '"<Full path to file>"'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'Policies' = '<SYSTEM32>\wupdate\wupdate.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Policies' = '<SYSTEM32>\wupdate\wupdate.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'HKLM' = '<SYSTEM32>\wupdate\wupdate.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'HKCU' = '<SYSTEM32>\wupdate\wupdate.exe'
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{82GKS3KH-U7A4-63GQ-5CXR-Q0W7QA28S60A}] 'StubPath' = '<SYSTEM32>\wupdate\wupdate.exe Restart'
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{82GKS3KH-U7A4-63GQ-5CXR-Q0W7QA28S60A}] 'StubPath' = '<SYSTEM32>\wupdate\wupdate.exe'
Malicious functions:
Injects code into
the following system processes:
- %WINDIR%\Explorer.EXE
Modifies file system:
Creates the following files:
- <SYSTEM32>\wupdate\wupdate.exe
- %TEMP%\XX--XX--XX.txt
- %APPDATA%\cglogs.dat
- %TEMP%\XxX.xXx
- %TEMP%\UuU.uUu
Sets the 'hidden' attribute to the following files:
- <SYSTEM32>\wupdate\wupdate.exe
- %APPDATA%\cglogs.dat
Deletes the following files:
- %TEMP%\XX--XX--XX.txt
- %TEMP%\UuU.uUu
- %TEMP%\XxX.xXx
Substitutes the following files:
- %TEMP%\UuU.uUu
- %TEMP%\XxX.xXx
Network activity:
Connects to:
- 'ca#####876.myftp.org':25001
UDP:
- DNS ASK ca#####876.myftp.org
Miscellaneous:
Creates and executes the following:
- '<SYSTEM32>\wupdate\wupdate.exe'
Executes the following:
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe'
- '%ProgramFiles%\Internet Explorer\IEXPLORE.EXE'
