Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] ' rdfnpgyq' = '"<LS_APPDATA>\ridi\ridi.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] ' rdfnpgyq' = '"<LS_APPDATA>\ridi\ridi.exe"'
Malicious functions:
Creates and executes the following:
- '' (downloaded from the Internet)
Injects code into
the following system processes:
- <SYSTEM32>\regsvr32.exe
Modifies settings of Windows Internet Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '1206' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '2300' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '1809' = '00000003'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1206' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '2300' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1809' = '00000003'
Modifies file system:
Creates the following files:
- %HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\KHMHGZ4F\WindowsXP-KB968930-x86-ENG[1].exe
- %TEMP%\WindowsXP-KB968930-x86-ENG.exe
- <LS_APPDATA>\ridi\ridi.exe
- %HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\KHMHGZ4F\microsoft[1]
Deletes the following files:
- <Full path to file>
Network activity:
Connects to:
- '14#.#9.254.210':80
- '18#.#58.81.164':80
- '32.##1.93.249':8080
- '14#.#9.59.90':443
- '73.#8.64.70':80
- '24.##6.14.254':80
- '73.##3.138.195':80
- '98.##.45.107':80
- '81.##.180.183':443
- '13#.#15.159.124':80
- '15#.#53.150.147':80
- '23#.#3.35.241':80
- '17#.#25.30.190':80
- '29.##0.43.85':80
- '51.##.121.210':80
- '18#.#97.200.31':80
- '10.##.131.57':80
- '18#.#18.112.197':80
- '17#.#9.187.7':80
- '3.###.65.201':8080
- '11#.99.90.2':443
- '17#.#3.146.29':80
- '10#.#26.96.65':80
- '59.##.105.103':80
- '20#.#6.232.182':80
- '14#.#73.50.85':80
- '91.##6.171.166':80
- '11.##8.85.104':80
- '23.##.64.142':80
- '20#.#6.122.161':80
- '24#.#28.15.233':80
- '17#.#6.43.75':8080
- '24#.#4.109.98':80
- '15#.#2.7.149':80
- '13#.#19.129.45':80
- '1.###.210.118':80
TCP:
HTTP GET requests:
- http://download.microsoft.com/download/E/C/E/ECE99583-2003-455D-B681-68DB610B44A4/WindowsXP-KB968930-x86-ENG.exe via 20#.#6.232.182
- http://microsoft.com/ via 20#.#6.232.182
UDP:
- DNS ASK download.microsoft.com
- DNS ASK microsoft.com
Miscellaneous:
Creates and executes the following:
- '%TEMP%\WindowsXP-KB968930-x86-ENG.exe' /quiet /norestart
- '<Full path to file>'
Executes the following:
- '<SYSTEM32>\regsvr32.exe'
