Win32.HLLW.Autoruner2.8261
Added to the Dr.Web virus database:
2014-02-21
Virus description added:
2014-02-22
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'd5a38e9b5f206c41f8851bf04a251d26' = '"%TEMP%\chrome.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'd5a38e9b5f206c41f8851bf04a251d26' = '"%TEMP%\chrome.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\d5a38e9b5f206c41f8851bf04a251d26.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\wscript.exe' = '<SYSTEM32>\wscript.exe:*:Enabled:wscript.exe'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\chrome.exe' = '%TEMP%\chrome.exe:*:Enabled:chrome.exe'
To complicate detection of its presence in the operating system,
blocks the following features:
- User Account Control (UAC)
Creates and executes the following:
Executes the following:
- '<SYSTEM32>\wscript.exe' "%TEMP%\chrome.vbe"
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "<SYSTEM32>\wscript.exe" "wscript.exe" ENABLE
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\chrome.exe" "chrome.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\chrome.vbe
- %TEMP%\chrome.exe
Deletes the following files:
Network activity:
Connects to:
- 'me#####nck.zapto.org':1177
UDP:
- DNS ASK me#####nck.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
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