Technical Information
To ensure autorun and distribution:
Creates the following files on removable media:
- <Drive name for removable media>:\hqfg.exe
- <Drive name for removable media>:\autorun.inf
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DisableNotifications' = '00000001'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\winlogon.exe' = '<SYSTEM32>\winlogon.exe:*:enabled:@shell32.dll,-1'
- <Auxiliary element>
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to virus>' = '<Full path to virus>:*:Enabled:ipsec'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
blocks execution of the following system utilities:
- Windows Task Manager (Taskmgr)
- Registry Editor (RegEdit)
blocks the following features:
- User Account Control (UAC)
- Windows Security Center
Injects code into
the following system processes:
- <SYSTEM32>\ctfmon.exe
a large number of user processes.
Restores hooked functions in System Service Descriptor Table (SSDT).
Modifies file system :
Creates the following files:
- %TEMP%\caaln.exe
- C:\autorun.inf
- C:\cdnwwv.pif
- %TEMP%\winsyhay.exe
- <DRIVERS>\gtnom.sys
- %TEMP%\winrtnicm.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\hqfg.exe
- C:\autorun.inf
- C:\cdnwwv.pif
Deletes the following files:
- <DRIVERS>\gtnom.sys
- %TEMP%\caaln.exe
- %TEMP%\winsyhay.exe
- %TEMP%\winrtnicm.exe
Network activity:
Connects to:
- 'tt##pv.com':443
- 'xn##ye.com':443
- 'an#.#renz.pl':80
- 'il#.#renz.pl':80
- 'lp##aw.com':443
UDP:
- DNS ASK tt##pv.com
- DNS ASK xn##ye.com
- DNS ASK an#.#renz.pl
- DNS ASK il#.#renz.pl
- DNS ASK lp##aw.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'RECV_CLASS' WindowName: 'RECV'