Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'JHLKSDG' = ''
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{VHCX21G7-6S1S-487O-4L82-R4O7OC22J886}] 'StubPath' = '%WINDIR%\CrashReports\explorer.exe Restart'
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{VHCX21G7-6S1S-487O-4L82-R4O7OC22J886}] 'StubPath' = ''
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'RIOGPSGSGSG' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'RIOGPSGSGSG' = ''
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'DSGOPKPDS' = ''
Malicious functions:
Creates and executes the following:
- '%WINDIR%\CrashReports\explorer.exe'
Executes the following:
- '%WINDIR%\explorer.exe'
Injects code into
the following system processes:
- %WINDIR%\explorer.exe
Modifies file system :
Creates the following files:
- %TEMP%\%USERNAME%7
- %TEMP%\%USERNAME%8
- %WINDIR%\CrashReports\explorer.exe
- %TEMP%\%USERNAME%2.txt
Sets the 'hidden' attribute to the following files:
- %WINDIR%\CrashReports\explorer.exe
Deletes the following files:
- %TEMP%\%USERNAME%7
- %TEMP%\%USERNAME%8
- %TEMP%\%USERNAME%2.txt
Deletes itself.
Network activity:
Connects to:
- 'fl######yerupdate.sytes.net':6546
UDP:
- DNS ASK fl######yerupdate.sytes.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'Indicator' WindowName: ''
- ClassName: 'MS_WINHELP' WindowName: ''
