Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices] 'Microsoft' = 'antivirs.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Microsoft' = 'antivirs.exe'
Malicious functions:
Creates and executes the following:
- <SYSTEM32>\antivirs.exe 332 "<Full path to virus>"
Modifies file system :
Creates the following files:
- <SYSTEM32>\antivirs.exe
Sets the 'hidden' attribute to the following files:
- <SYSTEM32>\antivirs.exe
Deletes itself.
Network activity:
Connects to:
- '25#.#55.255.255':3921
- 'ir#.##vgikosku.net':3921
UDP:
- DNS ASK ir#.##vgikosku.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'mIRC' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''