Technical Information
To ensure autorun and distribution:
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\AppMgmt] 'Start' = '00000002'
- [<HKLM>\SYSTEM\ControlSet001\Services\63B5559E] 'Start' = '00000002'
Changes the following executable system files:
- <SYSTEM32>\appmgmts.dll
Infects the following executable files:
- %PROGRAM_FILES%\FireFox\xpcshell.exe
- %PROGRAM_FILES%\FireFox\updater.exe
- %PROGRAM_FILES%\FireFox\uninstall\helper.exe
- %PROGRAM_FILES%\FireFox\xpidl.exe
- <Auxiliary element>
- %PROGRAM_FILES%\FireFox\xpt_link.exe
- %PROGRAM_FILES%\FireFox\xpt_dump.exe
- %PROGRAM_FILES%\FireFox\shlibsign.exe
- %PROGRAM_FILES%\FireFox\firefox.exe
- %PROGRAM_FILES%\FireFox\crashreporter.exe
- C:\Far2\Far.exe
- %PROGRAM_FILES%\FireFox\js.exe
- %PROGRAM_FILES%\FireFox\plugin-container.exe
- %PROGRAM_FILES%\FireFox\nsinstall.exe
- %PROGRAM_FILES%\FireFox\mangle.exe
Malicious functions:
Executes the following:
- '<SYSTEM32>\reg.exe' add HKLM\SYSTEM\CurrentControlSet\Services\63B5559E /v Type /t REG_DWORD /d 1 /f
- '<SYSTEM32>\reg.exe' add HKLM\SYSTEM\CurrentControlSet\Services\63B5559E /v ImagePath /t REG_EXPAND_SZ /d system32\drivers\63B5559E.sys /f
- '<SYSTEM32>\reg.exe' add HKLM\SYSTEM\CurrentControlSet\Services\63B5559E /v ErrorControl /t REG_DWORD /d 1 /f
- '<SYSTEM32>\reg.exe' add HKLM\SYSTEM\CurrentControlSet\Enum\SW\{eec12db6-ad9c-4168-8658-b03daef417fe}\{ABD61E00-9350-47e2-A632-4438B90C6641} /v Service /t REG_SZ /d 63B5559E /f
- '<SYSTEM32>\reg.exe' add HKLM\SYSTEM\CurrentControlSet\Enum\SW\{eec12db6-ad9c-4168-8658-b03daef417fe}\{ABD61E00-9350-47e2-A632-4438B90C6641} /v ConfigFlags /t REG_DWORD /d 0 /f
- '<SYSTEM32>\reg.exe' add HKLM\SYSTEM\CurrentControlSet\Services\63B5559E /v Start /t REG_DWORD /d 2 /f
Restores hooked functions in System Service Descriptor Table (SSDT).
Modifies file system :
Creates the following files:
- <DRIVERS>\63B5559E.sys
- <SYSTEM32>\43883815.tmp
- C:\Documents and Settings\Infotmp.txt
Deletes the following files:
- <SYSTEM32>\43883815.tmp
- C:\Documents and Settings\Infotmp.txt
Modifies the HOSTS file.
Deletes itself.
Network activity:
UDP:
- DNS ASK 17#.#AP517.NET
- DNS ASK 17#.#AP517.INFO
- DNS ASK 17#.#AP517.US
- DNS ASK 17#.#AP517.ME
- DNS ASK www.ba##u.com
- DNS ASK 17#.#AP517.BIZ
- DNS ASK 17#.#AP517.COM
- '<Private IP address>':0
Miscellaneous:
Searches for the following windows:
- ClassName: 'CicLoaderWndClass' WindowName: '(null)'
- ClassName: '(null)' WindowName: 'Program Manager'
