Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] ' krcdh' = '"<LS_APPDATA>\ekejak\ekejak.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] ' krcdh' = '"<LS_APPDATA>\ekejak\ekejak.exe"'
Malicious functions:
Creates and executes the following:
- '%TEMP%\WindowsXP-KB968930-x86-ENG.exe' /quiet /norestart
- '<Full path to file>'
- '' (downloaded from the Internet)
Executes the following:
- '<SYSTEM32>\regsvr32.exe'
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>\ekejak\ekejak.exe
- %HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\KHMHGZ4F\microsoft[1]
Deletes the following files:
- <Full path to file>
Network activity:
Connects to:
- '25#.#44.59.146':80
- '76.##7.23.235':80
- '24#.#2.229.209':443
- '99.##3.205.64':80
- '17#.#02.120.192':80
- '11#.#19.224.136':8080
- '10#.#54.112.81':80
- '23#.#72.92.62':80
- '24#.#58.179.228':80
- '14#.#.100.203':80
- '23#.#4.47.255':80
- '14#.#38.159.114':80
- '14#.#55.78.53':80
- '21#.#9.172.125':8080
- '52.##1.58.159':80
- '14#.#1.133.40':443
- '97.##.227.83':80
- '20#.#87.201.203':80
- '39.##.128.32':80
- '12#.#6.148.242':443
- '25#.#3.120.120':80
- '11#.#0.123.2':80
- '12#.#5.86.43':80
- '16#.#22.96.69':80
- '85.#6.94.73':80
- '20#.#22.118.132':80
- '20#.#6.232.182':80
- '19#.37.3.24':80
- '10#.#15.55.42':80
- '37.##9.48.66':8080
- '17#.#0.173.164':8080
- '80.##9.12.24':443
- '16#.#1.31.252':443
- '38.##.214.31':8080
- '16#.#07.211.81':80
- '12#.#21.161.204':80
- '10#.#1.149.123':80
- '57.##4.150.143':80
- '20#.#14.231.99':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
