Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'YI9B2F0F4EXHZB9HL' = 'C:\systemhost\24FC2AE3832.exe'
Malicious functions:
Creates and executes the following:
- 'C:\systemhost\24FC2AE3832.exe'
Injects code into
the following system processes:
- <SYSTEM32>\alg.exe
- <SYSTEM32>\ctfmon.exe
- <SYSTEM32>\cmd.exe
- <SYSTEM32>\cscript.exe
- <SYSTEM32>\wbem\wmiprvse.exe
- <SYSTEM32>\winlogon.exe
- %WINDIR%\Explorer.EXE
- <SYSTEM32>\lsass.exe
- <SYSTEM32>\spoolsv.exe
- <SYSTEM32>\svchost.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\8FB458CC3AAE269
- C:\systemhost\24FC2AE3832.exe
Deletes itself.
Network activity:
Connects to:
- 'bo###esce.net':8080
- '20#.#6.232.182':80
- '<Private IP address>':0
- '95.##1.55.202':443
- '85.##.121.77':443
TCP:
HTTP GET requests:
- http://www.microsoft.com/ via 20#.#6.232.182
UDP:
- DNS ASK www.microsoft.com
- DNS ASK bo###esce.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
