Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Microsoft_Services' = '%APPDATA%\Roaming\firefox.exe'
Malicious functions:
Creates and executes the following:
- '%PROGRAM_FILES%\FireFox\Pershelpr.exe'
- '%HOMEPATH%\GLSZB\JYYZQ.exe' %HOMEPATH%\GLSZB\ITIEW
- '%HOMEPATH%\GLSZB\JYYZQ.exe' %HOMEPATH%\GLSZB\ZFMXN
Executes the following:
- '<SYSTEM32>\conhost.exe' /pid=1228
- '<SYSTEM32>\taskkill.exe'
- '<SYSTEM32>\rundll32.exe' dfdts.dll,DfdGetDefaultPolicyAndSMART
- '<SYSTEM32>\taskkill.exe' /pid=1868
- '<SYSTEM32>\conhost.exe'
- '<SYSTEM32>\conhost.exe' /pid=4088
- '<SYSTEM32>\taskkill.exe' /F /IM explorer.exe
- '<SYSTEM32>\WScript.exe' "%HOMEPATH%\GLSZB\YDBSY.vbs"
- '<SYSTEM32>\taskkill.exe' /F /IM iexplore.exe
- '<SYSTEM32>\attrib.exe' +s +h%APPDATA%\Roaming\firefox.exe
- '<SYSTEM32>\cmd.exe' /c %APPDATA%\Roaming\till.bat
Modifies file system :
Creates the following files:
- %APPDATA%\Roaming\Mozilla\Firefox\Profiles\zp7tnb55.default\sessionstore.bak
- %TEMP%\nshEB58.tmp\System.dll
- %APPDATA%\Roaming\till.bat
- %APPDATA%\Roaming\Mozilla\Firefox\Profiles\zp7tnb55.default\prefs-1.js
- %TEMP%\nshEB58.tmp\ShellLink.dll
- %APPDATA%\Roaming\Mozilla\Firefox\Profiles\zp7tnb55.default\downloads.sqlite-journal
- %APPDATA%\Roaming\Mozilla\Firefox\Profiles\zp7tnb55.default\downloads.sqlite
- <LS_APPDATA>\Mozilla\Firefox\Profiles\zp7tnb55.default\urlclassifier3.sqlite-journal
- %APPDATA%\Roaming\Mozilla\Firefox\Profiles\zp7tnb55.default\places.sqlite-wal
- %APPDATA%\Roaming\firefox.exe
- %HOMEPATH%\GLSZB\YMQGIX
- %HOMEPATH%\GLSZB\ZFMXN
- %HOMEPATH%\GLSZB\FIKFO
- %HOMEPATH%\GLSZB\LXRMU
- %HOMEPATH%\GLSZB\YDBSY.vbs
- %PROGRAM_FILES%\FireFox\Pershelpr.exe
- %PROGRAM_FILES%\FireFox\Set.ini
- %HOMEPATH%\GLSZB\JYYZQ.exe
- %HOMEPATH%\GLSZB\ITIEW
Sets the 'hidden' attribute to the following files:
- %HOMEPATH%\GLSZB\ZFMXN
Deletes the following files:
- %TEMP%\nshEB58.tmp\System.dll
- <LS_APPDATA>\Mozilla\Firefox\Profiles\zp7tnb55.default\urlclassifier3.sqlite-journal
- %APPDATA%\Roaming\Mozilla\Firefox\Profiles\zp7tnb55.default\downloads.sqlite-journal
- %HOMEPATH%\GLSZB\ITIEW
- %HOMEPATH%\GLSZB\JYYZQ.exe
- %TEMP%\nshEB58.tmp\ShellLink.dll
Network activity:
Connects to:
- 'fx####s.mozilla.com':80
- 'localhost':49160
- 'localhost':49158
TCP:
HTTP GET requests:
- fx####s.mozilla.com/en-US/firefox/headlines.xml
UDP:
- DNS ASK fx####s.mozilla.com
Miscellaneous:
Searches for the following windows:
- ClassName: '(null)' WindowName: 'Persistance'
- ClassName: '(null)' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'FirefoxMessageWindow' WindowName: '(null)'
- ClassName: '(null)' WindowName: 'dsfhgsidufsdiufh'
- ClassName: 'Shell_traywnd' WindowName: ''
- ClassName: 'EDIT' WindowName: '(null)'
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: 'OleMainThreadWndClass' WindowName: '(null)'