Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'db31c9b' = '"<LS_APPDATA>\qofaxa\qofaxa.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'db31c9b' = '"<LS_APPDATA>\qofaxa\qofaxa.exe"'
Malicious functions:
Creates and executes the following:
- '%TEMP%\WindowsXP-KB968930-x86-ENG.exe' /quiet /norestart
- '%TEMP%\WindowsXP-KB968930-x86-ENG.exe' (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:
- %APPDATA%\chaffs.dll
- %APPDATA%\callout.unicode.start.character.xml
- %APPDATA%\preface.autolabel.xml
- <LS_APPDATA>\qofaxa\qofaxa.exe
- %TEMP%\WindowsXP-KB968930-x86-ENG.exe
- %HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\KHMHGZ4F\WindowsXP-KB968930-x86-ENG[1].exe
- %HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\KHMHGZ4F\microsoft[1]
- %APPDATA%\tip.png
- %APPDATA%\download_5.ico
- %TEMP%\nsj2.tmp
- %APPDATA%\Grandchild
- %APPDATA%\2.svg
- %APPDATA%\Jakarta
- %APPDATA%\Currie
Deletes the following files:
- %TEMP%\nsj3.tmp\System.dll
Deletes itself.
Network activity:
Connects to:
- '61.##.191.252':80
- '18#.#38.159.83':80
- '15#.#15.212.104':80
- '96.#48.34.7':80
- '20.##3.197.104':80
- '14#.#15.90.246':80
- '25#.#19.164.236':80
- '71.##.223.98':80
- '20#.#9.108.160':80
- '11#.#0.220.140':80
- '14#.#.229.236':443
- '45.##6.147.221':80
- '20#.#.175.48':80
- '62.##2.193.155':8080
- '13#.#9.117.115':80
- '19#.#90.250.230':80
- '16#.#2.173.175':80
- '55.##.74.175':443
- '13.##.247.46':80
- '24.##.190.249':80
- '17.##1.234.92':80
- '61.##0.72.98':443
- '19#.#0.62.239':80
- '20#.#6.232.182':80
- '19#.#70.28.47':80
- '15#.#4.51.45':80
- '17#.#28.184.230':80
- '12#.#2.56.211':80
- '13#.#75.14.74':80
- '11#.#24.112.201':443
- '20#.#75.237.40':80
- '37.#8.63.6':443
- '13#.#39.8.205':443
- '90.##6.163.82':80
- '40.##5.150.221':80
TCP:
HTTP GET requests:
- http://do#####d.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 do#####d.microsoft.com
- DNS ASK microsoft.com
