Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'systemhost.exe' = 'C:\systemhost.exe\systemhost.exe'
Malicious functions:
Creates and executes the following:
- 'C:\systemhost.exe\systemhost.exe'
Injects code into
the following system processes:
- <SYSTEM32>\cscript.exe
a large number of user processes.
Modifies settings of Windows Internet Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1409' = '00000003'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1609' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] '1609' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] '1406' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] '1609' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] '1406' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1406' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] '1409' = '00000003'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] '1409' = '00000003'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] '1409' = '00000003'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] '1609' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'WarnOnPost' = '{00,00,00,00}'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'WarnOnPostRedirect' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '1609' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '1406' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] '1406' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '1409' = '00000003'
Modifies file system:
Creates the following files:
- C:\systemhost.exe\config.bin
- C:\systemhost.exe\systemhost.exe
Deletes itself.
Network activity:
Connects to:
- 'pr###dyl.com':563
- '91.##7.162.191':563
- '91.##7.162.191':443
UDP:
- DNS ASK 25#.###.#55.255.in-addr.arpa
- DNS ASK wa###ime.com
- DNS ASK ma###gt4.com
- DNS ASK pr###dyl.com
