Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'msnmsgsrl' = '%WINDIR%\inf\wlcomm.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\regdrv.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
Executes the following:
- '<SYSTEM32>\net1.exe' stop "Central de Seguranзa"
- '<SYSTEM32>\net.exe' stop "Central de Seguranзa"
- '<SYSTEM32>\netsh.exe' firewall set opmode mode = disable
Modifies file system :
Creates the following files:
- <SYSTEM32>\cmdg5e.exe
- <SYSTEM32>\regvste.exe
- %WINDIR%\inf\wlcomm.exe
- <SYSTEM32>\DDD.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\regdrv.exe
- %WINDIR%\inf\wlcomm.exe
Network activity:
Connects to:
- 'ch#######ewversions.sytes.net':5
UDP:
- DNS ASK ch#######ewversions.sytes.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'TfrmServer' WindowName: 'bv2'
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: '(null)' WindowName: 'bv1'
- ClassName: 'TApplication' WindowName: 'v2'
