Win32.HLLW.Autoruner2.26066
Added to the Dr.Web virus database:
2016-10-17
Virus description added:
2016-10-17
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'LSA Shell (Export Version)' = '%APPDATA%\lsass.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\u.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\Desktop.ini
Malicious functions:
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
Executes the following:
- '<SYSTEM32>\net.exe' stop Alerter
- '<SYSTEM32>\sc.exe' config Alerter start= disabled
- '<SYSTEM32>\net.exe' stop wscsvc
- '<SYSTEM32>\sc.exe' stop wscsvc
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%APPDATA%\lsass.exe" Rede
- '<SYSTEM32>\sc.exe' stop SharedAccess
- '<SYSTEM32>\net.exe' stop SharedAccess
- '<SYSTEM32>\net1.exe' stop wscsvc
- '<SYSTEM32>\net1.exe' stop SharedAccess
- '<SYSTEM32>\sc.exe' config wscsvc start= disabled
- '<SYSTEM32>\sc.exe' config SharedAccess start= disabled
- '<SYSTEM32>\net1.exe' stop Alerter
- '<SYSTEM32>\cmd.exe' /c "sc config Alerter start= disabled"
- '<SYSTEM32>\cmd.exe' /c "sc stop wscsvc"
- '<SYSTEM32>\cmd.exe' /c "sc config wscsvc start= disabled"
- '%APPDATA%\lsass.exe'
- '<SYSTEM32>\cmd.exe' /c "%APPDATA%\~SystemCache.bat"
- '<SYSTEM32>\cmd.exe' /c "sc stop Alerter"
- '<SYSTEM32>\cmd.exe' /c "net stop wscsvc"
- '<SYSTEM32>\sc.exe' stop Alerter
- '<SYSTEM32>\cmd.exe' /c "net stop SharedAccess"
- '<SYSTEM32>\cmd.exe' /c "sc stop SharedAccess"
- '<SYSTEM32>\cmd.exe' /c "sc config SharedAccess start= disabled"
- '<SYSTEM32>\cmd.exe' /c "net stop Alerter"
Modifies file system:
Creates the following files:
- %APPDATA%\lsass.exe
- %APPDATA%\~SystemCache.bat
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\u.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\Desktop.ini
Deletes the following files:
- <Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\u.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\Desktop.ini
Deletes itself.
Network activity:
Connects to:
- 'ad####d.no-ip.biz':8945
- 'cl####rico.co.cc':8945
- 'ar###io.co.cc':8945
- 'ar###io.co.cc':8080
- 'cl####rico.co.cc':8080
- 'ad####d.no-ip.biz':8080
UDP:
- DNS ASK ad####d.no-ip.biz
- DNS ASK cl####rico.co.cc
- DNS ASK ar###io.co.cc
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