Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\Splhlp] 'Name' = '%ALLUSERSPROFILE%\Documents\w.dll'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Inoyikotadoqev' = 'rundll32.exe "%WINDIR%\strvcfy.dll",Startup'
- [<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\3859544448] 'Name' = '%TEMP%\5.tmp'
Substitutes the following executable system files:
- <SYSTEM32>\dllcache\winlogon.exe with <SYSTEM32>\temp.tmp
- <SYSTEM32>\dllcache\explorer.exe with <SYSTEM32>\temp.tmp
- %WINDIR%\explorer.exe with %WINDIR%\temp.tmp
- <SYSTEM32>\winlogon.exe with <SYSTEM32>\temp.tmp
Malicious functions:
Creates and executes the following:
- '%TEMP%\rpwg.exe'
- '%TEMP%\-1998166001'
- '%TEMP%\llqcwsn.exe'
- '%TEMP%\tgusxkk.exe'
- '%TEMP%\yxfenmu.exe'
- '%TEMP%\pcner.exe'
- '%TEMP%\cnbpnvmj.exe'
- '%TEMP%\ptkyyp.exe'
- '%TEMP%\gdmrcoc.exe'
- '%TEMP%\hvhbva.exe'
- '%TEMP%\nso3.tmp\2IC.exe'
- '%TEMP%\nso3.tmp\6tbp.exe'
- '%TEMP%\nso3.tmp\3E4U - Old.exe'
- '%TEMP%\esqop.exe'
- '%TEMP%\nso3.tmp\cb.exe'
- '%TEMP%\nso3.tmp\7Rich.exe'
- '%TEMP%\ptkyyp.exe' (downloaded from the Internet)
- '%TEMP%\pcner.exe' (downloaded from the Internet)
- '%TEMP%\gdmrcoc.exe' (downloaded from the Internet)
- '%TEMP%\cnbpnvmj.exe' (downloaded from the Internet)
- '%TEMP%\hvhbva.exe' (downloaded from the Internet)
- '%TEMP%\tgusxkk.exe' (downloaded from the Internet)
- '%TEMP%\llqcwsn.exe' (downloaded from the Internet)
- '%TEMP%\rpwg.exe' (downloaded from the Internet)
- '%TEMP%\yxfenmu.exe' (downloaded from the Internet)
- '%TEMP%\esqop.exe' (downloaded from the Internet)
- '%TEMP%\-1998166001' (downloaded from the Internet)
Executes the following:
- '<SYSTEM32>\rundll32.exe' "%WINDIR%\strvcfy.dll",iep
- '<SYSTEM32>\svchost.exe'
- '<SYSTEM32>\rundll32.exe' "%WINDIR%\strvcfy.dll",Startup
Injects code into
the following system processes:
- <SYSTEM32>\svchost.exe
- %WINDIR%\Explorer.EXE
- <SYSTEM32>\spoolsv.exe
Modifies settings of Windows Internet Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1400' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1601' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'currentlevel' = '00000000'
Modifies file system :
Creates the following files:
- %TEMP%\-1998166001
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\nersim[1].php
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\fcppqhklp[1].php
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\YPORKZYZ\tgtkk[1].php
- %TEMP%\yxfenmu.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\YPORKZYZ\ylzzd[1].php
- %TEMP%\llqcwsn.exe
- %TEMP%\tgusxkk.exe
- %TEMP%\rpwg.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\tpggk[1].php
- %TEMP%\cnbpnvmj.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\ivizm[1].php
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\YPORKZYZ\xxobsfwwn[1].php
- %WINDIR%\ejezodowurafox.dll
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\CA9SKZD5.php
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\vijmarrivv[1].php
- %TEMP%\ptkyyp.exe
- %TEMP%\gdmrcoc.exe
- %TEMP%\pcner.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\jjnaeeiz[1].php
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\pptgxlb[1].php
- %TEMP%\4.tmp
- %TEMP%\nso3.tmp\7Rich.exe
- %WINDIR%\strvcfy.dll
- %WINDIR%\Temp\6.tmp
- %TEMP%\nso3.tmp\cb.exe
- %TEMP%\nsy2.tmp
- %TEMP%\nso3.tmp\2IC.exe
- %TEMP%\nso3.tmp\6tbp.exe
- %TEMP%\nso3.tmp\3E4U - Old.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\zimnarrvz[1].php
- <SYSTEM32>\temp.tmp
- %TEMP%\hvhbva.exe
- %TEMP%\esqop.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\zzjwaaosf[1].php
- %ALLUSERSPROFILE%\Documents\w.dll
- %ALLUSERSPROFILE%\Documents\dll
- <SYSTEM32>\dll
- %WINDIR%\temp.tmp
- <SYSTEM32>\w.dll
Deletes the following files:
- %WINDIR%\Temp\6.tmp
- <DRIVERS>\etc\hosts
- <SYSTEM32>\svchost.exe
- %ALLUSERSPROFILE%\Documents\w.dll
- %TEMP%\5.tmp
- %TEMP%\nso3.tmp\3E4U - Old.exe
- %TEMP%\nso3.tmp\2IC.exe
- %TEMP%\nso3.tmp\cb.exe
- %TEMP%\nso3.tmp\7Rich.exe
Moves the following system files:
- from <SYSTEM32>\winlogon.exe to %WINDIR%\Temp\winlogon.dat
- from %WINDIR%\explorer.exe to %WINDIR%\Temp\explorer.dat
Moves the following files:
- from %TEMP%\4.tmp to %TEMP%\5.tmp
Network activity:
Connects to:
- '05######042a.riffwire.net':80
- 'localhost':1040
- 'ab###ute.com':80
TCP:
HTTP GET requests:
- ab###ute.com/sjxkoboffw/vijmarrivv.php?ad####################################
- ab###ute.com/sjxkoboffw/tgtkk.php?ad####################################
- ab###ute.com/sjxkoboffw/fcppqhklp.php?ad####################################
- ab###ute.com/sjxkoboffw/xxobsfwwn.php?ad##################################################################
- ab###ute.com/sjxkoboffw/ivizm.php?ad####################################
- ab###ute.com/sjxkoboffw/jjnaeeiz.php?ad####################################
- ab###ute.com/sjxkoboffw/nersim.php?ad####################################
- ab###ute.com/sjxkoboffw/zzjwaaosf.php?ad####################################
- ab###ute.com/sjxkoboffw/zimnarrvz.php?ad####################################
- ab###ute.com/sjxkoboffw/uhuuvl.php?ad####################################
- ab###ute.com/sjxkoboffw/tpggk.php?ad####################################
- ab###ute.com/sjxkoboffw/ylzzd.php?ad####################################
- ab###ute.com/sjxkoboffw/pptgxlb.php?ad####################################
UDP:
- DNS ASK 05######042a.riffwire.net
- DNS ASK ab###ute.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'Indicator' WindowName: ''
- ClassName: 'SystemTray_Main' WindowName: ''
- ClassName: 'CSCHiddenWindow' WindowName: ''
