Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKLM>\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\] 'Java' = '%PROGRAMDATA%\javaupdate.exe'
Creates the following services
- [<HKLM>\System\CurrentControlSet\Services\TermService] 'Start' = '00000002'
- [<HKLM>\SYSTEM\CurrentControlSet\Services\TermService\Parameters] 'ServiceDll' = '%ProgramFiles%\Microsoft DN1\sqlmap.dll'
Malicious functions
Creates and executes the following (exploit)
- '%APPDATA%\nihemlw.exe'
Executes the following
- '%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="3389" dir=in action=allow protocol=TCP localport=3389
Injects code into
the following system processes:
- %WINDIR%\syswow64\cmd.exe
Terminates or attempts to terminate
the following system processes:
- <SYSTEM32>\svchost.exe
Reads files which store third party applications passwords
- %APPDATA%\mozilla\firefox\profiles.ini
Modifies file system
Creates the following files
- %APPDATA%\nihemlw.exe
- %PROGRAMDATA%\javaupdate.exe
- %APPDATA%\xjjfhnhif.exe
- %ProgramFiles%\microsoft dn1\sqlmap.dll
- %ProgramFiles%\microsoft dn1\rdpwrap.ini
- <SYSTEM32>\microsoft\protect\s-1-5-20\f68a87e2-db48-4d8e-af37-53708b71a035
- <SYSTEM32>\microsoft\protect\s-1-5-20\preferred
- %PROGRAMDATA%\microsoft\crypto\rsa\machinekeys\f686aace6942fb7f7ceb231212eef4a4_36d1130a-ac2e-44f7-9dc1-e424fbcbe0ee
- %APPDATA%\cydagdf.tmp
- %PROGRAMDATA%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\policy.vpol
- %PROGRAMDATA%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\3ccd5499-87a8-4b10-a215-608888dd3b55.vsch
- %PROGRAMDATA%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\2f1a6504-0641-44cf-8bb5-3612d865f2e5.vsch
- %LOCALAPPDATA%\microsoft\vault\4bf4c442-9b8a-41a0-b380-dd4a704ddb28\policy.vpol
Deletes the following files
- %APPDATA%\cydagdf.tmp
Network activity
TCP
HTTP GET requests
- http://di####link99.com/java.exe
- http://45.##.168.62/upnp.exe
UDP
- DNS ASK di####link99.com
- DNS ASK no#####1881.duckdns.org
- '23#.#55.255.250':1900
- '<LOCALNET>.59.1':5351
Miscellaneous
Creates and executes the following
- '%PROGRAMDATA%\javaupdate.exe'
- '%APPDATA%\xjjfhnhif.exe'
- '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' Add-MpPreference -ExclusionPath C:\' (with hidden window)
- '%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="3389" dir=in action=allow protocol=TCP localport=3389' (with hidden window)
Executes the following
- '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' Add-MpPreference -ExclusionPath C:\
- '%WINDIR%\syswow64\cmd.exe'
