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:
- %TEMP%\nsw6.tmp\per
- %TEMP%\nsw6.tmp\BJREgdvXAyspNvVnsRC.dll
- %TEMP%\nsw6.tmp\perper
- %TEMP%\nsw6.tmp\perperperper
- %TEMP%\nsw6.tmp\perperper
- %TEMP%\nsw6.tmp\MjhgsnNLDrNrDKfnJ
- %TEMP%\nsn3.tmp\MjhgsnNLDrNrDKfnJ
- %TEMP%\nsf2.tmp
- %TEMP%\nsn3.tmp\BJREgdvXAyspNvVnsRC.dll
- %TEMP%\nse5.tmp
- %APPDATA%\19981660\svchost.exe
Deletes the following files:
- %TEMP%\nsw6.tmp\perper
- %TEMP%\nsw6.tmp\per
- %TEMP%\nsw6.tmp\perperperper
- %TEMP%\nsw6.tmp\perperper
- %TEMP%\nsn3.tmp\MjhgsnNLDrNrDKfnJ
- %TEMP%\nsn3.tmp\BJREgdvXAyspNvVnsRC.dll
- %TEMP%\nsw6.tmp\MjhgsnNLDrNrDKfnJ
- %TEMP%\nsw6.tmp\BJREgdvXAyspNvVnsRC.dll
Deletes itself.
Network activity:
Connects to:
- 'fu##itek.ru':80
TCP:
HTTP GET requests:
- fu##itek.ru/mad/index.php?ui######################################################
UDP:
- DNS ASK fu##itek.ru
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'