Win32.HLLW.Autoruner1.56429
Added to the Dr.Web virus database:
2013-09-20
Virus description added:
2013-09-20
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'x86kernel2' = '%APPDATA%\19981660\svchost.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'x86kernel2' = '%APPDATA%\19981660\svchost.exe'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet003\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\19981660\svchost.exe' = '%APPDATA%\19981660\svchost.exe:*:Enabled:svchost'
- [<HKLM>\SYSTEM\ControlSet002\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\19981660\svchost.exe' = '%APPDATA%\19981660\svchost.exe:*:Enabled:svchost'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\19981660\svchost.exe' = '%APPDATA%\19981660\svchost.exe:*:Enabled:svchost'
Creates and executes the following:
- '%APPDATA%\19981660\svchost.exe'
Executes the following:
- '<SYSTEM32>\regini.exe' perper
- '<SYSTEM32>\regini.exe' per
- '<SYSTEM32>\regini.exe' perperperper
- '<SYSTEM32>\regini.exe' perperper
- '<SYSTEM32>\cacls.exe' "%APPDATA%\19981660\svchost.exe" /P "%USERNAME%:R" /E
- '<SYSTEM32>\cacls.exe' "%APPDATA%\19981660\svchost.exe" /P "%USERNAME%:N"
- '<SYSTEM32>\cacls.exe' "%APPDATA%\19981660" /P "%USERNAME%:R" /E
- '<SYSTEM32>\cacls.exe' "%APPDATA%\19981660" /P "%USERNAME%:N"
Modifies file system :
Creates the following files:
- <Current directory>\perperper
- <Current directory>\perperperper
- <Current directory>\perper
- %APPDATA%\19981660\svchost.exe
- <Current directory>\per
Deletes the following files:
- <Current directory>\perperper
- <Current directory>\perperperper
- <Current directory>\per
- <Current directory>\perper
Deletes itself.
Network activity:
Connects to:
TCP:
HTTP GET requests:
- mk####.myjino.ru/mad/index.php?ui######################################################
UDP:
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
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