Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'ogftjyeffaclz' = '<SYSTEM32>\regsvr32.exe /s "<SYSTEM32>\hwomjeetschittf.dll"'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'ogftjyeffaclz' = '<SYSTEM32>\regsvr32.exe /s "%TEMP%\hwomjeetschittf.dll"'
Malicious functions:
Executes the following:
- <SYSTEM32>\regsvr32.exe /s "<SYSTEM32>\hwomjeetschittf.dll"
Modifies file system :
Creates the following files:
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\nsi_install[1].php
- %TEMP%\cv4E1DF.tmp
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\1up[1].htm
- <SYSTEM32>\jdjvrtelsl.exe
- %TEMP%\nsw2.tmp
- %TEMP%\nsc3.tmp\System.dll
- %TEMP%\hwomjeetschittf.dll
Deletes the following files:
- %TEMP%\nsc3.tmp\System.dll
- %TEMP%\cv4E1DF.tmp
Network activity:
Connects to:
- 'localhost':1039
- 'ad#.##tupbanner.com':80
- 'localhost':1036
TCP:
HTTP GET requests:
- ad#.##tupbanner.com/bc/nsi_install.php?in################################################################################
UDP:
- DNS ASK ad#.##tupbanner.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'MS_AutodialMonitor' WindowName: ''
- ClassName: 'MS_WebcheckMonitor' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: '' WindowName: ''
