Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKLM>\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\] 'myb' = '%ALLUSERSPROFILE%\myb.exe'
Sets the following service settings
- [<HKLM>\System\CurrentControlSet\Services\TermService] 'Start' = '00000002'
- [<HKLM>\SYSTEM\CurrentControlSet\Services\TermService\Parameters] 'ServiceDll' = '%ProgramFiles%\Microsoft DN1\sqlmap.dll'
Malicious functions
Injects code into
the following system processes:
- %WINDIR%\explorer.exe
the following user processes:
- .cnvbbguh.exe
Terminates or attempts to terminate
the following system processes:
- <SYSTEM32>\svchost.exe
Reads files which store third party applications passwords
- %LOCALAPPDATA%\google\chrome\user data\default\login data
- %APPDATA%\opera software\opera stable\login data
- %APPDATA%\thunderbird\profiles.ini
- %APPDATA%\mozilla\firefox\profiles.ini
Modifies file system
Creates the following files
- %ALLUSERSPROFILE%\myb.exe
- %APPDATA%\.cnvbbguh.exe
- %ProgramFiles%\microsoft dn1\sqlmap.dll
- <SYSTEM32>\rfxvmt.dll
- %ProgramFiles%\microsoft dn1\rdpwrap.ini
- %APPDATA%\ufnbwwf.tmp
- %APPDATA%\gujbbgt.tmp
- %APPDATA%\vaucbse.tmp
- %APPDATA%\is.ccab.tmp
- %ALLUSERSPROFILE%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\policy.vpol
- %ALLUSERSPROFILE%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\3ccd5499-87a8-4b10-a215-608888dd3b55.vsch
- %ALLUSERSPROFILE%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\2f1a6504-0641-44cf-8bb5-3612d865f2e5.vsch
- %LOCALAPPDATA%\microsoft\vault\4bf4c442-9b8a-41a0-b380-dd4a704ddb28\policy.vpol
- <SYSTEM32>\microsoft\protect\s-1-5-20\408632db-c6d0-410b-9abd-c2e6747bf1f6
- <SYSTEM32>\microsoft\protect\s-1-5-20\preferred
- %ALLUSERSPROFILE%\microsoft\crypto\rsa\machinekeys\f686aace6942fb7f7ceb231212eef4a4_36d1130a-ac2e-44f7-9dc1-e424fbcbe0ee
Deletes the following files
- %APPDATA%\ufnbwwf.tmp
- %APPDATA%\gujbbgt.tmp
- %APPDATA%\vaucbse.tmp
- %APPDATA%\is.ccab.tmp
- %APPDATA%\.cnvbbguh.exe
Network activity
TCP
HTTP GET requests
- http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt
UDP
- DNS ASK cd#.##scordapp.com
- DNS ASK microsoft.com
Miscellaneous
Creates and executes the following
- '%ALLUSERSPROFILE%\myb.exe'
- '%APPDATA%\.cnvbbguh.exe'
Executes the following
- '%WINDIR%\syswow64\msdt.exe'
- '%WINDIR%\syswow64\cmd.exe' del "%APPDATA%\.cnvBBguh.exe"
