Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'tmp4.tmp.exe' = '%ALLUSERSPROFILE%\Application Data'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'explorer.exe <SYSTEM32>\csmm.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'svchost.exe' = '%APPDATA%\Microsoft\svchost.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\svchost.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
- Command Prompt (CMD)
- Windows Task Manager (Taskmgr)
- Registry Editor (RegEdit)
blocks the following features:
- User Account Control (UAC)
Creates and executes the following:
- %TEMP%\tmp4.tmp.exe
- <SYSTEM32>\csmm.exe
- %APPDATA%\Microsoft\svchost.exe
- %TEMP%\tmp1.tmp.exe
- %TEMP%\tmp2.tmp.exe
- %TEMP%\tmp3.tmp.exe
Executes the following:
- <SYSTEM32>\net1.exe stop Norton Antivirus Auto Protect Service
- <SYSTEM32>\net.exe stop mcshield
- <SYSTEM32>\net1.exe user 14 /add
- <SYSTEM32>\net1.exe stop mcshield
- <SYSTEM32>\net1.exe user 12 /add
- <SYSTEM32>\net1.exe user 11 /add
- <SYSTEM32>\net.exe stop Norton Antivirus Auto Protect Service
- <SYSTEM32>\net1.exe user 13 /add
- <SYSTEM32>\net1.exe user 15 /add
- <SYSTEM32>\net1.exe user 21 /add
- <SYSTEM32>\net1.exe user 20 /add
- <SYSTEM32>\net1.exe user 23 /add
- <SYSTEM32>\net1.exe user 22 /add
- <SYSTEM32>\net1.exe user 17 /add
- <SYSTEM32>\net1.exe user 16 /add
- <SYSTEM32>\net1.exe user 19 /add
- <SYSTEM32>\net1.exe user 18 /add
- <SYSTEM32>\net1.exe user 10 /add
- <SYSTEM32>\notepad.exe
- <SYSTEM32>\net1.exe stop FireSvc
- <SYSTEM32>\net1.exe user 2 /add
- <SYSTEM32>\net1.exe user 1 /add
- <SYSTEM32>\net.exe stop SharedAccess
- %WINDIR%\explorer.exe
- <SYSTEM32>\net1.exe stop SharedAccess
- <SYSTEM32>\net.exe stop FireSvc
- <SYSTEM32>\taskkill.exe /f /im notepad.exe
- <SYSTEM32>\net1.exe user 7 /add
- <SYSTEM32>\net1.exe user 6 /add
- <SYSTEM32>\net1.exe user 9 /add
- <SYSTEM32>\net1.exe user 8 /add
- <SYSTEM32>\net1.exe user 3 /add
- <SYSTEM32>\taskkill.exe /f /im wordpad.exe
- <SYSTEM32>\net1.exe user 5 /add
- <SYSTEM32>\net1.exe user 4 /add
Modifies settings of Windows Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoRun' = '00000002'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoViewOnDrive' = '03FFFFFF'
Hides the following processes:
- <SYSTEM32>\taskkill.exe
- <SYSTEM32>\net1.exe
Modifies file system :
Creates the following files:
- <SYSTEM32>\csmm.exe
- %TEMP%\tmp4.tmp.exe
- %ALLUSERSPROFILE%\Application Datatmp4.tmp.exe
- <SYSTEM32>\sxmm.dll
- %TEMP%\tmp2.tmp.exe
- %TEMP%\tmp1.tmp.exe
- %APPDATA%\Microsoft\svchost.exe
- %TEMP%\tmp3.tmp.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\svchost.exe
- %APPDATA%\Microsoft\svchost.exe
Network activity:
Connects to:
- 'da####t.no-ip.info':1604
- 'da####t.no-ip.info':3085
UDP:
- DNS ASK da####t.no-ip.info
Miscellaneous:
Searches for the following windows:
- ClassName: '' WindowName: 'Windows Media Player'
- ClassName: '' WindowName: 'System Configuration Utility'
- ClassName: '#32770' WindowName: 'Form1'
- ClassName: '' WindowName: ''
- ClassName: '' WindowName: 'Group Policy'
- ClassName: '' WindowName: 'Calculator'
- ClassName: 'BUTTON' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'Indicator' WindowName: ''
- ClassName: 'SysListView32' WindowName: ''
- ClassName: '#32770' WindowName: ''
- ClassName: '#32770' WindowName: 'Program Manager'
